Humidification filter cover member, humidification filter unit, and humidification device

Abstract

To facilitate positioning of a cover member for a humidification filter relative to the humidification filter.SOLUTION: A cover member 22 for a humidification filter covers at least a part of a humidification filter 21 and is used sandwiched with the humidification filter 21 by a holding frame 23 and a holding frame cover 24. The cover member 22 for the humidification filter includes: a body part 221; and a positioning part 222. The body part 221 has air permeability and water absorbability. The positioning part 222 has a shape extending on the same plane from at least a part of an edge of the body part 221 and positions the body part 221 relative to positioning ribs 235, 235 formed at the inner side of the holding frame 23.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a cover member for a humidifying filter, a humidifying filter unit, and a humidifier. [Background technology]

[0002] The evaporation-type humidifier described in Patent Document 1 includes a disk-shaped humidifying filter that is absorbent and breathable. The disk-shaped humidifying filter is arranged in a vertical position, and absorbs water by submerging part of its periphery in a water tank. During humidification operation, the humidifier operates the blower to draw in air from outside the device and pass it through the humidifying filter. At this time, the water absorbed in the humidifying filter evaporates, and then the air containing the evaporated water is blown out from inside the device to the outside. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5904819 Summary of the Invention [Problem to be solved by the invention]

[0004] In the humidifier described in Patent Document 1, a cover member that is one size smaller than the humidifying filter is placed on top of the disk-shaped humidifying filter. The humidifying filter cover member is a filter for removing coarse dust particles contained in the intake outside air. The humidifying filter cover member is sized so that it will not be submerged in the water tank, and by absorbing the water that has been absorbed in the humidifying filter, the humidifying filter can absorb new water from the water tank.

[0005] In Patent Document 1, the humidifying filter cover member is detachably and concentrically stacked on one surface of the humidifying filter and is sandwiched between the humidifying filter and the holding frame cover. Conventionally, the humidifying filter cover member is stacked concentrically on one surface of the humidifying filter by visual estimation, which may result in the installation position being misaligned.

[0006] An object of the present invention is to make it easier to position a humidifying filter cover member relative to a humidifying filter. [Means for solving the problem]

[0007] The cover member for a humidifying filter according to the present invention covers at least a portion of a humidifying filter and is used by being clamped together with the humidifying filter by a holding member. The cover member for a humidifying filter comprises a main body and a positioning portion. The main body is breathable and water absorbent. The positioning portion extends in the same plane from at least a portion of an edge of the main body, and positions the main body with respect to a protrusion formed on the inside of the holding member.

[0008] A humidifying filter unit according to the present invention includes a humidifying filter cover member.

[0009] A humidifier according to the present invention includes a cover member for a humidifying filter. Effect of the Invention

[0010] According to the present invention, the humidifying filter cover member can be easily positioned relative to the humidifying filter. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is an exploded perspective view showing the configuration of a humidifier according to a first embodiment. [Diagram 2] 1 is a cross-sectional view showing a configuration of a humidifier according to a first embodiment. [Diagram 3] 1 is an exploded perspective view showing the configuration of a humidifying filter unit included in a humidifier according to a first embodiment. [Figure 4] 5A to 5C are diagrams illustrating an assembly procedure for the humidifying filter unit. [Diagram 5] 11A to 11C are further views illustrating the assembly procedure of the humidifying filter unit. [Figure 6] FIG. 2 is a partial cross-sectional view of the humidifying filter unit. [Figure 7] 4 is a rear view showing the support structure of the humidifying filter unit in the first embodiment. FIG. [Figure 8] FIG. 11 is an exploded perspective view showing the configuration of a humidifying filter unit according to a second embodiment. [Figure 9] 5A to 5C are diagrams illustrating an assembly procedure for the humidifying filter unit. [Figure 10] FIG. 11 is an exploded perspective view showing the configuration of a humidifying filter unit according to a third embodiment. [Figure 11] 5A to 5C are diagrams illustrating an assembly procedure for the humidifying filter unit. [Figure 12] 11A to 11C are further views illustrating the assembly procedure of the humidifying filter unit. [Figure 13] 13 is a plan view showing an example of the configuration of a cover member for a humidifying filter according to a fourth embodiment. FIG. [Figure 14] 13 is a plan view showing another example of the configuration of a cover member for a humidifying filter according to the fourth embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference characters and description thereof will not be repeated.

[0013] <Embodiment 1> A humidifier 1, a humidifying filter unit 2, and a humidifying filter cover member 22 according to embodiment 1 will be described with reference to Figs. 1 to 7. Fig. 1 is an exploded perspective view showing the configuration of the humidifier 1 according to embodiment 1. Fig. 2 is a cross-sectional view showing the configuration of the humidifier 1 according to embodiment 1. The left and right sides of the paper in Fig. 2 are the front and rear sides of the humidifier 1. Fig. 1 is an exploded perspective view seen from the rear side of the humidifier 1 (i.e., the right side of the paper in Fig. 2). Hereinafter, the front and rear sides in the direction perpendicular to the paper in Fig. 2 are referred to as the left and right sides of the humidifier 1.

[0014] The humidifier 1 includes a rectangular parallelepiped housing 6. The housing 6 includes a front cover 61, a top cover 62, and a rear cover 63. The housing 6 is also 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. That is, the humidifier 1 has an air humidification function and an air purification function by deodorization and dust collection. Note that the humidifier 1 may have any configuration that has at least an air humidification function.

[0015] The ventilation passage 3 and the water supply space 60 communicate with each other via a midway opening 33 provided midway through the ventilation passage 3. However, when the water tub 12 is attached to a predetermined position in the housing 6, the midway opening 33 is closed by the water tub 12 and a partition plate (not shown) provided on the water tub 12. Therefore, air does not flow between the ventilation passage 3 and the water supply space 60 while the humidifier 1 is in use.

[0016] The water tub 12 is a tray that is long in the horizontal direction and has an open top. The water tub 12 is detachably arranged at a predetermined position in the housing 6 so that the longitudinal direction of the water tub 12 coincides with the left-right direction of the humidifier 1. The water tub 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 via a water passage hole (not shown). When the water tub 12 is arranged at a predetermined position in the housing 6, the first tray 121 is located in the ventilation passage 3, and the second tray 122 is located in the water supply space 60.

[0017] A humidifying filter unit 2, which will be described later, is attached to the first tray 121. A water supply tank 15 is attached to the second tray 122. A water supply tap is provided on the underside of the water supply tank 15. The water supply tank 15 is disposed in the water supply space 60 while attached to the second tray 122. Water stored in the water supply tank 15 flows out to the second tray 122 and is supplied to the first tray 121 through a water passage hole (not shown). As a result, a certain water level L of water is stored in the first tray 121.

[0018] The ventilation passage 3 has a filter housing section 301 and an outlet passage 302 which are in communication with each other. The ventilation passage 3 is also provided with an intake port 31, an outlet port 32, and a midway opening 33. The intake port 31 opens to the rear cover 63 of the housing 6. The outside of the humidifier 1 is in communication with the filter housing section 301 via the intake port 31.

[0019] The rear panel 10 is detachably attached to the housing 6 so as to close the suction port 31. A large number of air vents are formed in the rear panel 10. The air vents are closed by a pre-filter (not shown). The pre-filter collects coarse dust particles contained in the air flowing into the filter housing section 301 through the suction port 31.

[0020] The air outlet 32 ​​opens in the top cover 62 of the housing 6. The air outlet passage 302 communicates with the outside of the humidifier 1 via the air outlet 32. When the blower 13 described later blows air, the air outside the humidifier 1 is drawn into the ventilation passage 3 via the inlet 31 as shown by the arrow F1. The drawn air passes through the filter housing 301 and the air outlet passage 302 in this order, and is then blown out of the humidifier 1 via the air outlet 32 ​​as shown by the arrow F2. Note that the air outlet 32 ​​may be provided with a louver (not shown). The louver changes the blowing direction so that the air blown out of the air outlet 32 ​​can easily rise along the walls of the room, for example.

[0021] Blower 13 is disposed at the boundary between filter housing section 301 and outlet passage 302. Blower 13 is, for example, a sirocco fan, and includes fan motor 131 and fan 132. Fan motor 131 is fixed inside housing 6. Fan 132 is fixed to the output shaft of fan motor 131, and rotates when fan motor 131 is driven.

[0022] An air purifying unit 11 is detachably attached near the air inlet 31 of the filter housing unit 301, i.e., on the downwind side of the rear panel 10. Air that flows into the filter housing unit 301 through the air inlet 31 passes through the air purifying unit 11.

[0023] The air purifying unit 11 includes a dust collecting filter 111 and a deodorizing filter 112. The dust collecting filter 111 is, for example, a HEPA (High Efficiency Particulate Air) filter, and collects fine dust, pollen, and the like contained in the air passing through the dust collecting filter 111. The deodorizing filter 112 is, for example, a nonwoven fabric containing activated carbon, and adsorbs odorous components in the air passing through the deodorizing filter 112. Therefore, the air that passes through the air purifying unit 11 is purified. The air purifying unit 11 realizes an air cleaning function.

[0024] The first tray 121 of the water tub 12, the humidifying filter unit 2, and the rotation drive mechanism 16 are located in the filter housing section 301, which is located between the air purifying section 11 and the blower 13. When the water tub 12 is pulled out to the outside of the humidifier 1, the humidifying filter unit 2 attached to the first tray 121 is also pulled out to the outside of the humidifier 1 through the midway opening 33.

[0025] FIG. 3 is an exploded perspective view showing the configuration of the humidifying filter unit 2 included in the humidifier 1 according to the first embodiment.

[0026] The humidifying filter unit 2 has a humidifying filter 21, a humidifying filter cover member 22, a holding frame 23, and a holding frame cover 24. The humidifying filter 21 and the humidifying filter cover member 22 are sandwiched between the holding frame 23 and the holding frame cover 24. In the following, the direction in which the humidifying filter 21 and the humidifying filter cover member 22 are stacked is referred to as a stacking direction S. The holding frame 23 corresponds to a first holding member, and the holding frame cover 24 corresponds to a second holding member. The first holding member and the second holding member constitute a holding member.

[0027] The holding frame 23 has a cylindrical shape with one end open. A through hole 231, a reinforcing portion 232, a waterproof portion 233, and a positioning rib 235 are formed on one surface of the other end of the holding frame 23. In addition, a sprocket 234 is formed on the outer circumferential surface of the holding frame 23.

[0028] In the illustrated example, one surface of the holding frame 23 is divided into multiple pieces (eight in the figure) by through holes 231 and reinforcing parts 232. The shapes, positions, dimensions, etc. of the through holes 231 and reinforcing parts 232 are appropriately designed so as to maintain the strength of the humidifying filter unit 2 and not to impede the flow of water and air between the inside and outside of the humidifying filter unit 2.

[0029] Further, a waterproof portion 233 is provided on the peripheral edge of one surface of the holding frame 23. The shape, dimensions, etc. of the waterproof portion 233 are appropriately set so as to prevent water from flowing into the inside of the humidifying filter unit 2, as described later.

[0030] Furthermore, two positioning ribs 235, 235 are formed on the inner edge of the waterproof portion 233, protruding towards the humidifying filter 21, i.e., in the stacking direction S. The height of the positioning ribs 235, 235 in the stacking direction S is approximately the same as the height of the humidifying filter 21 in the stacking direction S. Engagement ribs 236, 236 may be formed on the tip of each of the positioning ribs 235, 235. The height of the engagement ribs 236, 236 in the stacking direction S is higher than the height of the humidifying filter 21 in the stacking direction S. The engagement ribs 236, 236 are part of the positioning ribs 235, 235. The positioning ribs 235, 235 and the engagement ribs 236, 236 correspond to protrusions.

[0031] The holder frame cover 24 has a substantially rectangular shape. The holder frame cover 24 is attached to the holder frame 23 so as to close the open side of the holder frame 23. Any attachment structure may be used for the holder frame cover 24 and the holder frame 23. The outer shape of the holder frame cover 24 is not limited to a substantially rectangular shape as shown in Fig. 3, and may be a circular shape similar to one side of the holder frame 23, etc.

[0032] The holding frame cover 24 is formed with a through hole 241, a reinforcing portion 242, and a waterproof portion 243. The positions, shapes, dimensions, etc. of the through hole 241, the reinforcing portion 242, and the waterproof portion 243 correspond to the positions, shapes, dimensions, etc. of the through hole 231, the reinforcing portion 232, and the waterproof portion 233 formed in the holding frame 23.

[0033] Furthermore, two pressing ribs 244, 244 that protrude towards the humidifying filter 21 are formed on the inner edge of the waterproof portion 243. The pressing ribs 244, 244 correspond to the second protrusion.

[0034] The humidifying filter 21 and the humidifying filter cover member 22 are housed and held inside the holding frame 23 and the holding frame cover 24. However, if the holding frame cover 24 is removed from the holding frame 23, the humidifying filter 21 and the humidifying filter cover member 22 can be taken out of the holding frame 23 and housed in the holding frame 23.

[0035] The humidifying filter 21 and the humidifying filter cover member 22 are made of a material that is water-absorbent and breathable. The humidifying filter 21 is made of, for example, a nonwoven fabric of rayon and PET (polyethylene terephthalate) fibers. The humidifying filter cover member 22 is made of, for example, a cotton fiber mesh. The materials of the humidifying filter 21 and the humidifying filter cover member 22 are not limited to these. However, it is preferable that the material of the humidifying filter cover member 22 has higher water absorption and quick-drying properties than the material of the humidifying filter 21.

[0036] Humidifying filter 21 is, for example, a D-cut disk made by folding a sheet-like nonwoven fabric in an accordion-like shape. Humidifying filter 21 has D-cut flat surface portion 211. When humidifying filter 21 is housed inside holding frame 23, flat surface portion 211 and positioning ribs 235, 235 abut against each other.

[0037] The humidifying filter cover member 22 has a main body portion 221 and a positioning portion 222. The main body portion 221 has a shape smaller than the size of one surface of the humidifying filter 21, and is laminated on one surface of the humidifying filter 21. The positioning portion 222 has a shape extending on the same surface from at least a part of the edge of the main body portion 221. In addition, the positioning portion 222 is provided with slits 223, 223 that engage with engagement ribs 236, 236 that protrude from the holding frame 23.

[0038] Next, a procedure for assembling the humidifying filter unit 2 will be described with reference to Fig. 4 to Fig. 6. Fig. 4 is a diagram for explaining the procedure for assembling the humidifying filter unit 2. Fig. 5 is a continuation of the diagram for explaining the procedure for assembling the humidifying filter unit 2. Fig. 6 is a partial cross-sectional view of the humidifying filter unit 2.

[0039] First, as shown in the perspective view of Fig. 4, the humidifying filter 21 is housed inside the holding frame 23. In this state, the flat portion 211 of the humidifying filter 21 abuts against the positioning ribs 235, 235 that protrude from the waterproof portion 233 of the holding frame 23. By the flat portion 211 abutting against the positioning ribs 235, 235, the humidifying filter 21 is held outside the waterproof portions 233, 243, and the center O21 (see Fig. 4) of the humidifying filter 21 and the center of the holding frame 23 are aligned.

[0040] 5, the humidifying filter cover member 22 is laminated on one surface of the humidifying filter 21. At this time, the positioning portion 222 of the humidifying filter cover member 22 is positioned with respect to the positioning ribs 235, 235 of the holding frame 23. In the first embodiment, the positioning is performed by engaging the slits 223, 223 provided in the positioning portion 222 with the engaging ribs 236, 236 which are part of the positioning ribs 235, 235. This aligns the center O22 (see FIG. 5) of the humidifying filter cover member 22 with the center of the holding frame 23. As a result, the center O22 (see FIG. 5) of the humidifying filter cover member 22 with the center O21 (see FIG. 4) of the humidifying filter 21 is aligned.

[0041] Next, the holding frame cover 24 is attached to the holding frame 23 in the state shown in Fig. 5. When the holding frame cover 24 is attached to the holding frame 23, the pressing ribs 244, 244 of the holding frame cover 24 come into contact with the positioning portion 222, and the positioning portion 222 is folded toward the humidifying filter 21. Since the positioning portion 222 has the notch 224, the positioning portion 222 can be folded easily. As shown in Fig. 6, the positioning portion 222 in the folded state is held sandwiched between the positioning ribs 235, 235 of the holding frame 23 and the pressing ribs 244, 244 of the holding frame cover 24.

[0042] 6, the length of positioning portion 222 is set to be equal to or less than the thickness of humidifying filter 21. Therefore, positioning portion 222 will not be immersed in the water stored in water tub 12 even when in a bent state.

[0043] The radius of the main body 221 is shorter than the minimum radius of the humidifying filter 21. In other words, the projected area of ​​the main body 221 in the stacking direction S is smaller than the projected area of ​​the humidifying filter 21 in the stacking direction S. For this reason, the main body 221 of the humidifying filter cover member 22 is stacked concentrically on one surface of the humidifying filter 21, so that the radial center of one surface of the humidifying filter 21 is covered by the main body 221, but the peripheral portion of one surface of the humidifying filter 21 is not covered by the main body 221. That is, the peripheral portion of one surface of the humidifying filter 21 is an area where the humidifying filter 21 is exposed. The humidifying filter cover member 22 is not attached to the other surface of the humidifying filter 21. That is, the other surface of the humidifying filter 21 is an area where the humidifying filter 21 is entirely exposed.

[0044] Next, a description will be given of the support structure of the humidifying filter unit 2. Fig. 7 is a rear view showing the support structure of the humidifying filter unit 2 in the first embodiment.

[0045] Two support rollers 123, 123 are arranged in the left-right direction inside the first tray 121. The rotation shafts of the support rollers 123, 123 are arranged in the front-rear direction.

[0046] The humidifying filter unit 2 is detachably placed on the support rollers 123, 123. At this time, the rotation axis of the humidifying filter unit 2 is arranged in the same direction as the rotation axis of the support rollers 123, 123. The support rollers 123, 123 rotatably support the lower outer circumferential surface of the holding frame 23 at their respective positions. Therefore, the humidifying filter unit 2 is supported in a vertical position above the water tub 12 so as to be rotatable in the circumferential direction.

[0047] The humidifying filter unit 2 is disposed in a position in which the humidifying filter cover member 22 faces the suction port 31. That is, the stacking direction S of the humidifying filter 21 and the humidifying filter cover member 22 is the same as the ventilation direction of the air flowing through the ventilation passage 3. The humidifying filter cover member 22 is disposed so as to be located on the upwind side of the humidifying filter 21. The humidifying filter cover member 22 collects dust and other particles contained in the air that has passed through the air purifier 11.

[0048] The rotary drive mechanism 16 includes a drive motor 161 and a drive roller 162. The drive motor 161 is fixed inside the housing 6. The drive roller 162 is fixed to an output shaft of the drive motor 161 and rotates by the drive of the drive motor 161. The drive roller 162 rotatably supports the upper outer circumferential surface of the holding frame 23. Therefore, the humidifying filter unit 2 is supported at three points, namely, at the positions of the support rollers 123, 123 and the drive roller 162, i.e., at different positions in the circumferential direction. In the illustrated example, the support rollers 123, 123 and the drive roller 162 are gear rollers and are structured to mesh with a sprocket 234 provided on the outer circumferential surface of the holding frame 23.

[0049] The rotation of the drive roller 162 is transmitted to the holding frame 23, causing the humidifying filter unit 2 to rotate about its own center O2. In FIG.

[0050] Water at water level L is stored in first tray 121. For this reason, some of the components constituting humidifying filter unit 2 are constantly immersed in the water stored in water tub 12. As shown in Fig. 7, even if waterproof part 233 of holding frame 23 and waterproof part 243 of holding frame cover 24 are submerged in water, water will not enter the inside of humidifying filter unit 2. This state is called a "non-submerged state."

[0051] 7 is rotated in the direction of arrow R, water becomes flooded into through-hole 231 and reinforcing portion 232 of holding frame 23 and through-hole 241 and reinforcing portion 242 of holding frame cover 24. In this case, water floods into the inside of humidifying filter unit 2 through through-holes 231, 241. This state is referred to as a "water-flooded state."

[0052] When the humidifying filter unit 2 is in a submerged state, the lower part of the humidifying filter 21 is located below the water surface of the water tub 12. Therefore, the lower part of the humidifying filter 21 is immersed in the water stored in the water tub 12. On the other hand, when the humidifying filter unit 2 is not submerged in water, the waterproof parts 233, 243 prevent water from entering the inside of the humidifying filter unit 2, and the humidifying filter 21 is located above the water surface. Therefore, the humidifying filter 21 is not immersed in the water stored in the water tub 12.

[0053] In contrast, the humidifying filter cover member 22 is not submerged in the water stored in the water tub 12, whether the humidifying filter unit 2 is in a submerged or non-submerged state. This is because the humidifying filter cover member 22 is always positioned above the water surface. As the humidifying filter unit 2 rotates, the cover member 22 alternates between a submerged state and a non-submerged state.

[0054] When the humidifying filter unit 2 is switched to the water-immersed state, the water stored in the water tank 12 is absorbed by the peripheral portion of the humidifying filter 21, and is further sucked up from the peripheral portion toward the center in the radial direction. Since the humidifying filter unit 2 rotates continuously, the peripheral portion of the humidifying filter 21 is continuously immersed in and absorbs water in the circumferential direction, and the absorbed water is lifted by the rotational movement of the humidifying filter unit 2. When the humidifying filter unit 2 is switched to the non-immersed state, even if the humidifying filter unit 2 rotates, the humidifying filter 21 does not immerse in or absorb water. However, during one rotation of the humidifying filter unit 2, the period during which the humidifying filter unit 2 is in the water-immersed state is sufficiently longer than the period during which the humidifying filter unit 2 is in the non-immersed state. Therefore, if the humidifying filter unit 2 continues to rotate, water is efficiently distributed throughout the entire humidifying filter 21.

[0055] When water is supplied to the radial center of the humidifying filter 21, the humidifying filter cover member 22 absorbs water from the humidifying filter 21 through the portion in close contact with the humidifying filter 21. The humidifying filter 21 that has absorbed water by the humidifying filter cover member 22 then absorbs additional water from the water tub 12. As described above, the humidifying filter 21 absorbs water directly from the water tub 12, but the humidifying filter cover member 22 absorbs water indirectly from the water tub 12 via the humidifying filter 21.

[0056] When the humidifying filter unit 2 is rotating, the air that passes through the humidifying filter unit 2 absorbs moisture sufficiently. On the other hand, when the humidifying filter unit 2 is not rotating and is in a non-submerged state, the air that passes through the humidifying filter unit 2 absorbs almost no moisture. Therefore, when both air purification and air humidification are performed, the rotary drive mechanism 16 is operated to rotate the humidifying filter unit 2. When only air purification is performed and air humidification is not performed, the rotary drive mechanism 16 is not operated, and the humidifying filter unit 2 stops in a position where it is in a non-submerged state.

[0057] When air purification and air humidification are performed simultaneously, the blower 13 and the rotary drive mechanism 16 are operated. Air is sucked from the outside of the housing 6 into the filter housing section 301 through the suction port 31. The sucked air flows forward through the filter housing section 301. At this time, the sucked air is purified and humidified by passing through the air purification section 11 and the humidification filter unit 2 in this order, and becomes purified humidified air. The purified humidified air flows from the filter housing section 301 to the blow-out passage 302. In the blow-out passage 302, the purified humidified air flows in the rear-upper direction, and is finally blown out to the outside of the housing 6 through the blow-out port 32.

[0058] When only air purification is performed and air humidification is not performed, the blower 13 operates but the rotary drive mechanism 16 does not operate. Also, the humidifying filter unit 2 remains stopped in a position where it is not submerged in water. Therefore, the air sucked into the filter housing part 301 through the suction port 31 is purified by passing through the air purification part 11, but is not humidified by the humidifying filter unit 2.

[0059] If the humidifying filter cover member 22 is only sandwiched between the humidifying filter 21 and the holding frame cover 24, the position of the humidifying filter cover member 22 may be displaced when the humidifying filter unit 2 is arranged in a vertical position or when the humidifying filter unit 2 rotates. If the center O22 of the humidifying filter cover member 22 is displaced from the center O21 of the humidifying filter 21, the humidifying filter cover member 22 will be submerged in and absorb water stored in the water tank 12, making it difficult for the humidifying filter 21 to absorb water. In contrast, in the first embodiment, the positioning portion 222 in the bent state is sandwiched between the positioning ribs 235, 235 and the holding ribs 244, 244. Also, the slits 223, 223 are engaged with the engagement ribs 236, 236. Therefore, even when the humidifying filter unit 2 is disposed in a vertical position and when the humidifying filter unit 2 rotates, the humidifying filter cover member 22 is prevented from shifting from the humidifying filter 21.

[0060] As described above with reference to Figs. 1 to 7, the humidifying filter cover member 22 according to the first embodiment covers at least a part of the humidifying filter 21, and is used by being sandwiched together with the humidifying filter 21 by the holding frame 23 and the holding frame cover 24, which are holding members. The humidifying filter cover member 22 includes a main body portion 221 and a positioning portion 222. The main body portion 221 has air permeability and water absorption. The positioning portion 222 has a shape extending from at least a part of the edge of the main body portion 221 on the same plane, and positions the main body portion 221 with respect to the positioning ribs 235, 235 formed on the inner side of the holding member. This configuration allows the humidifying filter 21 and the humidifying filter cover member 22 to be positioned with respect to the positioning ribs 235, 235, and as a result, the humidifying filter 21 and the humidifying filter cover member 22 are positioned. Therefore, it is possible to easily position the humidifying filter cover member 22 with respect to the humidifying filter 21.

[0061] In the illustrated example, a part of the positioning ribs 235, 235 is made into the engagement ribs 236, 236, and the engagement ribs 236, 236 are engaged with the slits 223, 223 of the humidifying filter cover member 22, but this is not limited thereto. For example, the slits 223, 223 may be provided in the positioning portion 222 that overlaps with the positioning ribs 235, 235 in the stacking direction S, and the slits 223, 223 may be engaged with the positioning ribs 235, 235. By engaging the positioning ribs 235, 235 or the engagement ribs 236, 236 with the slits 223, 223, the humidifying filter cover member 22 can be easily positioned with respect to the humidifying filter 21. In addition, the positional deviation of the humidifying filter cover member 22 from the humidifying filter 21 can be prevented.

[0062] <Embodiment 2> The configuration of the humidifier 1 according to embodiment 2 is similar to that of the humidifier 1 according to embodiment 1, and therefore Figures 1 to 7 will be referred to below. Figure 8 is an exploded perspective view showing the configuration of a humidifying filter unit 2 according to embodiment 2. In Figure 8, the same reference symbols are used for the same or corresponding parts as in Figures 1 to 7.

[0063] As shown in FIG. 8, the humidifying filter unit 2 according to the second embodiment has a humidifying filter 21, a humidifying filter cover member 22, a holding frame 23, and a holding frame cover 24.

[0064] The humidifying filter cover member 22 includes a main body 221, a positioning portion 222, and slits 223, 223. The positioning portion 222 and the slits 223, 223 in the first embodiment have different shapes from the positioning portion 222 and the slits 223, 223 in the second embodiment, but have the same functions.

[0065] In addition, in the first embodiment, two pressing ribs 244, 244 are formed on the holder frame cover 24, but in the second embodiment, one pressing rib 244 is formed on the holder frame cover 24. The number and size of the pressing ribs 244 correspond to the number and size of the positioning portions 222.

[0066] Fig. 9 is a diagram illustrating the procedure for assembling the humidifying filter unit 2. As shown in the perspective view of Fig. 9, the humidifying filter 21 is housed inside the holding frame 23. Next, the humidifying filter cover member 22 is layered on the humidifying filter 21 so that the positioning portion 222 protrudes from the peripheral edge of the humidifying filter 21. The slits 223, 223 are engageable with the positioning ribs 235, 235 of the holding frame 23.

[0067] Next, the holder frame cover 24 is attached to the holder frame 23 in the state shown in Fig. 9. When the holder frame cover 24 is attached to the holder frame 23, the pressing rib 244 of the holder frame cover 24 comes into contact with the positioning portion 222, and bends the positioning portion 222 toward the holder frame 23. The positioning portion 222 in the bent state is held in a state sandwiched between the positioning ribs 235, 235 of the holder frame 23 and the pressing rib 244 of the holder frame cover 24.

[0068] Although not shown, engagement ribs 236, 236 (see FIG. 5, etc.) for engaging with the slits 223, 223 may be formed at the tip of the positioning ribs 235, 235. When the engagement ribs 236, 236 are formed, the engagement of the engagement ribs 236, 236 with the slits 223, 223 can further prevent misalignment.

[0069] <Embodiment 3> The configuration of the humidifier 1 according to embodiment 3 is similar to that of the humidifier 1 according to embodiment 1, and therefore Figures 1 to 7 will be referred to below. Figure 10 is an exploded perspective view showing the configuration of a humidifying filter unit 2 according to embodiment 3. In Figure 10, the same reference numerals are used for the same or corresponding parts as those in Figures 1 to 7.

[0070] As shown in FIG. 10, the humidifying filter unit 2 according to the third embodiment has a humidifying filter 21, a humidifying filter cover member 22, a holding frame 23, and a holding frame cover 24.

[0071] The humidifying filter cover member 22 includes a main body portion 221 and a positioning portion 222 .

[0072] In the first embodiment, the positioning ribs 235, 235 are formed on the holding frame 23. In contrast, in the third embodiment, one positioning rib 235a is formed on the holding frame cover 24. The positioning rib 235a protrudes from the inner edge of the waterproof portion 243 towards the humidifying filter 21.

[0073] In the first embodiment, the sprocket 234 is formed on the outer peripheral surface of the holder frame 23. In contrast to this, in the third embodiment, a sprocket 234a is formed on the outer peripheral surface of the holder frame cover 24.

[0074] In the first embodiment, the holding frame cover 24 has the pressing ribs 244, 244 formed thereon. In contrast to this, in the third embodiment, the holding frame cover 24 has no pressing ribs 244, 244 formed thereon.

[0075] Fig. 11 is a diagram illustrating the assembly procedure of the humidifying filter unit 2. Fig. 12 is a continuation of the diagram illustrating the assembly procedure of the humidifying filter unit 2.

[0076] 11, the humidifying filter cover member 22 is housed inside the holding frame cover 24. In this state, the positioning portion 222 of the humidifying filter cover member 22 abuts against the positioning rib 235a of the holding frame cover 24. The positioning portion 222 abuts against the positioning rib 235a, thereby positioning the humidifying filter cover member 22 with respect to the holding frame cover 24. Specifically, the center of the humidifying filter cover member 22 and the center of the holding frame cover 24 are aligned.

[0077] Next, the humidifying filter 21 is housed inside the holding frame cover 24 in the state shown in Fig. 11. As shown in the plan view of Fig. 12, the humidifying filter cover member 22 and the humidifying filter 21 are stacked in this order inside the holding frame cover 24. In this state, the flat portion 211 of the humidifying filter 21 abuts against the positioning rib 235a of the holding frame cover 24. By the flat portion 211 abutting against the positioning rib 235a, the humidifying filter 21 is held outside the waterproof portions 233, 243, and the center of the humidifying filter 21 is aligned with the center of the holding frame cover 24. By aligning the center of the humidifying filter cover member 22 and the center of the humidifying filter 21 with the center of the holding frame cover 24, the center of the humidifying filter cover member 22 and the center of the humidifying filter 21 are also aligned.

[0078] Next, the holding frame 23 is attached to the holding frame cover 24 in the state shown in Fig. 12. Since the positioning portion 222 of the humidifying filter cover member 22 abuts against the positioning rib 235a of the holding frame cover 24, when the humidifying filter unit 2 is arranged in the vertical position, the humidifying filter cover member 22 is prevented from shifting in position from the humidifying filter 21.

[0079] <Embodiment 4> Since the configuration of the humidifier 1 according to embodiment 4 is similar to that of the humidifier 1 according to embodiment 1, Figures 1 to 7 will be referred to below. Figure 13 is a plan view showing an example of the configuration of a humidifying filter cover member 22b according to embodiment 4.

[0080] For example, the humidifying filter 21 in the second embodiment and the humidifying filter 21 in the third embodiment have different diameters. More specifically, the diameter of the humidifying filter 21 in the second embodiment is larger than the diameter of the humidifying filter 21 in the third embodiment. In this case, the diameter of the humidifying filter cover member 22 used for the humidifying filter 21 in the second embodiment must also be larger than the diameter of the humidifying filter cover member 22 used for the humidifying filter 21 in the third embodiment. Therefore, there are two types of humidifying filter cover members 22 with different sizes and shapes. Having two types of humidifying filter cover members 22 increases inventory and management costs. In addition, there is a possibility that a user will purchase the wrong humidifying filter cover member 22.

[0081] Therefore, in embodiment 4, one humidifying filter cover member 22b is configured to be transformable into two types of humidifying filter cover members 22-1 and 22-2. Here, the humidifying filter cover member corresponding to humidifying filter cover member 22 in embodiment 2 is referred to as "first humidifying filter cover member 22-1," and the humidifying filter cover member corresponding to humidifying filter cover member 22 in embodiment 3 is referred to as "second humidifying filter cover member 22-2."

[0082] The outer shape of the humidifying filter cover member 22b is the same as the outer shape of the first humidifying filter cover member 22-1, which has a larger diameter. The first humidifying filter cover member 22-1 has a first main body portion 221-1 and a first positioning portion 222-1.

[0083] The first body portion 221-1 includes a second body portion 221-2 having a shape at least partially smaller than the first body portion 221-1, and a second positioning portion 222-2 extending from an edge of the second body portion 221-2 on the same plane. The second body portion 221-2 and the second positioning portion 222-2 configure the second humidifying filter cover member 22-2. Note that since the first humidifying filter cover member 22-1 and the second humidifying filter cover member 22-2 are different in size, the positions of the center 22-1O of the first humidifying filter cover member 22-1 and the center 22-2O of the second humidifying filter cover member 22-2 are also different.

[0084] Further, the first main body portion 221-1 has a cut line 225 formed along the outline of the second humidifying filter cover member 22-2. By cutting off the peripheral portion of the first main body portion 221-1 along the cut line 225, the humidifying filter cover member 22b changes from the first humidifying filter cover member 22-1 to the second humidifying filter cover member 22-2.

[0085] Therefore, one humidifying filter cover member 22b can be used as the humidifying filter cover member 22 of the humidifying filter unit 2 in embodiment 2 (i.e., the first humidifying filter cover member 22-1), and can also be used as the humidifying filter cover member 22 of the humidifying filter unit 2 in embodiment 3 (i.e., the second humidifying filter cover member 22-2). Since two types of humidifying filter cover members 22 can be combined into one, inventory does not increase and management costs do not rise. In addition, it is possible to prevent users from purchasing the wrong humidifying filter cover member 22.

[0086] The shape of the first humidifying filter cover member 22-1 and the shape of the second humidifying filter cover member 22-2 are not limited to the shape exemplified in FIG.

[0087] FIG. 14 is a plan view showing another example of the configuration of the humidifying filter cover member 22c according to the fourth embodiment.

[0088] For example, the humidifying filter 21 in the first embodiment and the humidifying filter 21 in the second embodiment have the same diameter, but the shape of the positioning portion 222 is different. Therefore, there are two types of humidifying filter cover members 22 with different shapes. Having two types of humidifying filter cover members 22 increases inventory and management costs. There is also a possibility that a user will purchase the wrong humidifying filter cover member 22.

[0089] 14, one humidifying filter cover member 22c is configured to be transformable into two types of humidifying filter cover members 22-3 and 22-4. Here, the humidifying filter cover member corresponding to humidifying filter cover member 22 in embodiment 1 is referred to as "first humidifying filter cover member 22-3," and the humidifying filter cover member corresponding to humidifying filter cover member 22 in embodiment 2 is referred to as "second humidifying filter cover member 22-4."

[0090] Humidifying filter cover member 22c is provided with main body 221 and positioning portions 222-3 and 222-4 of different shapes that extend on the same plane from the edge of main body 221. A cut line 225 is formed at the boundary between the edge of main body 221 and positioning portion 222-3. Similarly, a cut line 225 is also formed at the boundary between the edge of main body 221 and positioning portion 222-4.

[0091] The main body 221 and the positioning portion 222-3 constitute the first humidifying filter cover member 22-3. The main body 221 and the positioning portion 222-4 constitute the second humidifying filter cover member 22-4. That is, the main body 221 is shared by the first humidifying filter cover member 22-3 and the second humidifying filter cover member 22-4.

[0092] Positioning portion 222-3 is cut away along cut line 225 at the boundary between the edge of main body 221 and positioning portion 222-3, so that humidifying filter cover member 22c becomes second humidifying filter cover member 22-4. Conversely, positioning portion 222-4 is cut away along cut line 225 at the boundary between the edge of main body 221 and positioning portion 222-4, so that humidifying filter cover member 22c becomes first humidifying filter cover member 22-3.

[0093] Therefore, one humidifying filter cover member 22c can be used as the humidifying filter cover member 22 of the humidifying filter unit 2 in embodiment 1 (i.e., the first humidifying filter cover member 22-3), and can also be used as the humidifying filter cover member 22 of the humidifying filter unit 2 in embodiment 2 (i.e., the second humidifying filter cover member 22-4). Since two types of humidifying filter cover members 22 can be combined into one, inventory does not increase and management costs do not rise. In addition, it is possible to prevent users from purchasing the wrong humidifying filter cover member 22.

[0094] 14, two positioning portions 222-3 and 222-4 are provided for one main body portion 221, but three or more positioning portions may be provided. In addition, the multiple positioning portions may be provided at any position on the edge of the main body portion 221.

[0095] Furthermore, the shape of the positioning portion 222-3 of the first humidifying filter cover member 22-3 and the shape of the positioning portion 222-4 of the second humidifying filter cover member 22-4 are not limited to the shape exemplified in FIG.

[0096] Furthermore, in the first to fourth embodiments, the disk-shaped humidifying filter unit 2 has been exemplified, but the shape of the humidifying filter unit 2 is not limited to a disk shape. In addition, in embodiments 1 to 4, the positioning ribs 235 for positioning the humidifying filter 21 and the like are used as protrusions for positioning the humidifying filter cover member 22, but ribs formed for other purposes may also be used as protrusions.

[0097] In the first to fourth embodiments, the drawings mainly show the respective components in a schematic manner for ease of understanding. Therefore, the thickness, length, etc. of each component shown in the drawings may differ from the actual ones for the convenience of drawing. [Industrial Applicability]

[0098] The present invention can be applied to humidifiers, humidifier air purifiers, and the like that use a humidifier filter cover member, regardless of whether they are for home or commercial use. [Explanation of symbols]

[0099] 1 Humidifier 2 Humidifying filter unit 3 Ventilation duct 6. Chassis 10 Rear Panel 11 Air Purification Section 12 Aquarium 13 Blower 15 Water tank 16 Rotation drive mechanism 21 Humidification filter 22, 22b Humidification filter cover member 22-1, 22-3 Cover member for first humidifying filter 22-2, 22-4 Cover member for second humidifying filter 23 Holding frame (first holding member) 24 Retaining frame cover (second retaining member) 31 Intake port 32 Air outlet 33 Midway opening 60 Water supply space 61 Front cover 62 Top cover 63 Rear cover 111 Dust filter 112 Deodorizing filter 121 1st Tray 122 2nd Tray 123 Support roller 131 Fan motor 132 Fans 161 Drive motor 162 Drive roller 221 Main body 221-1 First body part 221-2 Second body part 222, 222-3, 222-4 Positioning part 222-1 First positioning part 222-2 Second positioning part 223 Slit 224 Cut 225 Cut Line 231, 241 Through holes 232, 242 Reinforcement 233, 243 Waterproof section 234, 234a sprockets 235, 235a Positioning rib (protrusion) 236 Engagement rib (projection) 244 Retaining rib (second protrusion) 301 Filter housing 302 Air outlet passage

Claims

1. A cover member for a humidifying filter, which covers at least a portion of a humidifying filter and is used by being sandwiched together with the humidifying filter by a holding member having a sprocket formed on an outer peripheral wall, The humidification filter cover member is A main body portion having breathability and water absorption properties; a positioning portion that is shaped to extend from at least a part of an edge of the main body portion on the same plane and that positions the main body portion with respect to a protrusion formed on an inner side of the holding member; Equipped with the positioning portion positions the main body portion in two directions different from each other with respect to the protrusion portion such that the main body portion and the positioning portion are located away from the outer peripheral wall of the holding member; Cover member for humidifying filter.

2. The protrusion includes two ribs formed at positions spaced apart from each other, The positioning portion positions the main body portion by positioning at least a part of the positioning portion between the two ribs. The cover member for a humidifying filter according to claim 1 .

3. When viewed from the stacking direction of the humidifying filter and the humidifying filter cover member, the area of ​​the main body portion is smaller than the area of ​​the humidifying filter. The cover member for a humidifying filter according to claim 1 .

4. The positioning portion positions the main body portion so that a center of the main body portion and a center of the holding member are aligned when viewed from a stacking direction of the humidifying filter and the humidifying filter cover member. The cover member for a humidifying filter according to claim 1 .

5. The humidifying filter cover member according to claim 1 , wherein the positioning portion has a slit that engages with the protrusion.

6. A humidifying filter unit comprising the cover member for a humidifying filter according to any one of claims 1 to 5.

7. A humidifier comprising the cover member for a humidifier filter according to any one of claims 1 to 5.

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