Humidifying device

Abstract

To provide a humidifier capable of suppressing scattering of water droplets from a filter.SOLUTION: A humidifier includes: a body case 4 having a suction port 2 and a blowout port 3; an air course 32 communicating the suction port 2 with the blowout port 3 provided in the body case 4; an air blowing part 7 provided in the air course 32; and a gas liquid contact part 6 provided upstream of the air blowing part 7 in the air course 32. The air blowing part 7 includes a casing 28 and a fan 27 provided in the casing 28. In the casing 28, an upper portion above the fan 27 is surrounded by opposing scroll surfaces 42 and a suction port surface 40 and a suction port opposing surface 41, and a discharge port 29 from which air in the casing 28 is discharged when the fan 27 is rotated is provided. A casing air course part 43 is provided between the discharge port 29 and the fan 27. A water scattering suppression member 44 is provided in the casing air course part 43.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a vaporization type humidifying device that rotates a filter partially immersed in water in a water storage container and ventilates the filter for humidification.

Background Art

[0002] The structure of a conventional humidifying device of this type has been as follows.

[0003] That is, it includes a main body case having an air inlet and an air outlet, a water storage section provided in the main body case for storing water, a disk-shaped filter whose part of the periphery is immersed in the water in the water storage section, a filter frame for holding the filter, a support section for rotatably supporting the filter frame, a rotating member for rotating the filter frame, a blowing section for blowing air outside the main body case to the filter, and an air passage for blowing the air sucked from the air inlet by the blowing section to the air outlet through the filter (for example, Patent Document 1 below).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In such a conventional humidifying device, the filter rotates while being partially immersed in the water in the water storage container, and air is blown to the filter that has come out of the water by the blowing section. When the filter holds a large amount of water and the amount of air blown to the filter by the blowing section is large, there has been a problem that water droplets scatter from the filter and blow out from the air outlet.

[0006] Therefore, the present invention solves the above-mentioned conventional problems and aims to provide a humidifying device that suppresses the scattering of water droplets from the air outlet.

Means for Solving the Problem

[0007] And, in order to achieve this object, the present invention includes a main body case having an air inlet and an air outlet, a water storage section provided in the main body case for storing water, a disk-shaped filter having a part of its periphery immersed in the water in the water storage section, a filter frame section for holding the filter, a support section for rotatably supporting the filter frame section, a rotating means for rotating the filter frame section, a blowing section for blowing air outside the main body case to the filter, and an air passage for blowing the air sucked from the air inlet by the blowing section to the air outlet through the filter. The axial direction of rotation of the filter frame section is the horizontal direction. The filter frame section has a first filter frame and a second filter frame detachably attached to the first filter frame. The first filter frame has a first rotation axis extending to the leeward side in the air blowing direction to the filter, and a number of first inner cross bars radially extending from the first rotation axis around the first rotation axis. A water splash suppressing member is provided on the first inner cross bars. , the water splash suppressing member is a protrusion extending obliquely upward from the inner surface of the suction port facing surface in the casing air passage portion, and the suction port surface facing the water splash suppressing member has a distance from the suction port facing surface that increases as it goes from bottom to top. It is characterized by these means and achieves the initial object by these means.

Effects of the Invention

[0008] As described above, the present invention can obtain the effect of suppressing water droplets from scattering from the air outlet.

Brief Description of the Drawings

[0009]

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Embodiments for Carrying Out the Invention

[0010] (Embodiment 1) FIG. 1 is a perspective view of the humidifying device according to Embodiment 1 of the present invention. FIG. 2 is a perspective view of the humidifying device according to Embodiment 1 of the present invention with the door open. FIG. 3 is a cross-sectional view of the humidifying device according to Embodiment 1 of the present invention. FIG. 4 is a cross-sectional perspective view of the humidifying device according to Embodiment 1 of the present invention. FIG. 5 is a perspective view of the gas-liquid contact part of the humidifying device according to Embodiment 1 of the present invention. FIG. 6 is a developed view of the gas-liquid contact part of the humidifying device according to Embodiment 1 of the present invention.

[0011] In the following, as shown in FIG. 1, when describing the vertical direction as the up-down direction and the horizontal direction as the left-right direction in the state where the humidifying device is installed (hereinafter also referred to as the "installed state"). Also, in the following, in the installed state, the side surface of the humidifying device on the long side where the operation part 34 is provided on the horizontally long rectangular top surface is defined as the "front surface", the surface facing the front surface of the humidifying device is defined as the "rear surface", the side surface on the right side when viewed from the front side of the humidifying device is defined as the "right side surface", and the side surface on the left side is defined as the "left side surface".

[0012] As shown in FIGS. 1 to 6, the humidifying device 1 of the present embodiment includes a vertically long box-shaped main body case 4 having an air inlet 2 and an air outlet 3, and inside the main body case 4, an air cleaning unit 5, a gas-liquid contact unit 6, a blower unit 7, and a control unit 9 are provided. Inside the main body case 4, on the front side of the main body case 4, the air cleaning unit 5 is arranged, on the rear side of the main body case 4, the blower unit 7 is arranged, and between the air cleaning unit 5 and the blower unit 7, the gas-liquid contact unit 6 is arranged. In the air passage 32 communicating the air inlet 2 and the air outlet 3, the air cleaning unit 5, a filter 12 (described later) which is the gas-liquid contact unit 6, and the blower unit 7 are arranged.

[0013] The air inlet 2 is located on the left and right side surfaces of the main body case 4, and the air outlet 3 is located on the upper surface of the main body case 4. The air outlet 3 has a plurality of louvers 3a that rotate in the vertical direction. In FIG. 1, the air outlet 3 is in a state where the louvers 3a are closed.

[0014] The air cleaning unit 5 captures fine particles of the air passing through the air cleaning unit 5 and removes them from the air flow. The air cleaning unit 5 has a vertically long shape, and the filter material is folded in a bellows shape, and is provided on the leeward side of the air inlet 2 in the air passage 32.

[0015] The gas-liquid contact unit 6 holds water and promotes gas-liquid contact between the air to be purified and water, and is provided on the leeward side of the air cleaning unit 5 in the air passage 32. The gas-liquid contact unit 6 has a water supply unit 10, a water storage container 11, a filter 12, a filter frame unit 13, and a rotating member 14. On the side surface of the main body case 4, there is an opening / closing door 4a. When the door 4a is opened, the water supply unit 10 and the water storage container 11 appear.

[0016] The water supply unit 10 supplies water into the water storage container 11. An example of the water supply unit 10 is a water tank 15. The water tank 15 is attached to the end of the water storage container, stores water in the water tank 15, and water is supplied from the water tank 15 to the water storage container 11 by a valve mechanism, so that the water level in the water storage container 11 is maintained in a substantially constant state. Note that the water supply unit 10 may be configured to supply water from a pipe connected to a water supply pipe.

[0017] The water storage container 11 has a substantially horizontally long box shape with an open top surface, stores the water supplied from the water tank 15, and is detachably provided horizontally at the lower part of the main body case 4. It has a support part 16 that rotatably supports the filter frame part 13. The support part 16 has a first support plate 16a and a second support plate 16b in a substantially vertically long plate shape extending upward from the upper end edge of the water storage container 11. At the upper part of the first support plate 16a, there is a first bearing 17a that rotatably supports the filter frame part 13, and at the upper part of the second support plate 16b, there is a second bearing 17b that rotatably supports the filter frame part 13. The first support plate 16a is arranged on the leeward side in the air passage 32 compared to the second support plate 16b.

[0018] FIG. 7 is an exploded perspective view of the filter, the filter frame part of the humidifying device according to Embodiment 1 of the present invention.

[0019] As shown in FIGS. 3 to 7, the filter 12 has a disc shape, and a part of the periphery is periodically immersed in the water of the water storage container 11, and the water is sucked up using the capillary phenomenon. The water sucked up by the capillary phenomenon is held by the connecting thread of the filter 12, and purification is performed when air passes through here. The filter 12 is held inside the filter frame part 13.

[0020] The filter frame part 13 has a first filter frame 20 and a second filter frame 21.

[0021] The first filter frame 20 has a circular shallow dish shape and has a plurality of openings 22 on the bottom surface. At the center of the bottom surface of the first filter frame 20, there is a first rotating shaft 23 protruding outward.

[0022] The second filter frame 21 has a circular shallow dish shape and has a plurality of openings 24 on the bottom surface. At the center of the bottom surface of the second filter frame 21, there is a second rotating shaft 25 protruding outward.

[0023] Filter 12 is disposed between a first filter frame 20 and a second filter frame 21. The diameter of the second filter frame 21 is slightly smaller than that of the first filter frame 20, and the second filter frame 21 is configured to fit within the first filter frame 20. In this state, the second rotation axis 25 of the second filter frame 21 and the first rotation axis 23 of the first filter frame 20 each protrude outward. The filter frame portion 13 is rotatably supported by a first bearing 17a provided on the first support plate 16a of the water storage container 11 and a second bearing 17b provided on the second support plate 16b by the first rotation axis 23 of the first filter frame 20 and the second rotation axis 25 of the second filter frame 21. The first rotation axis 23 of the first filter frame 20 and the second rotation axis 25 of the second filter frame 21 extend in the front-rear direction (the air blowing direction in the filter frame) in the main body case 4. The filter 12 and the filter frame portion 13 are structured to rotate in the vertical direction by a rotating member 14. The filter frame portion 13 is such that a part of the periphery of the filter 12 is immersed in the water in the water storage container 11. The first rotation axis 23 of the first filter frame 20 is attached to the first bearing 17a, and the second rotation axis 25 of the second filter frame 21 is attached to the second bearing 17b.

[0024] As shown in FIG. 3, the air blowing unit 7 is provided at the central portion of the main body case 4 and includes a motor 26, a fan 27 rotated by the motor 26, and a scroll-shaped casing 28 surrounding them.

[0025] The casing 28 is provided with an air outlet 29 and an air inlet 30. The air outlet 29 is provided on the upper surface side of the main body case 4 of the casing 28. Further, the air inlet 30 is provided on the front side of the main body case 4 of the casing 28 so as to face the filter 12.

[0026] The motor 26 has a rotation shaft 31, and the rotation shaft 31 of the motor 26 extends horizontally from the front side to the back side in the main body case 4.

[0027] The fan 27 is a sirocco fan and is fixed to a rotating shaft 31 extending from the motor 26. When the rotating shaft of the motor 26 rotates, the fan 27 also rotates, and the air sucked in from the intake port 2 of the main body case 4 is sucked into the casing 28 from the suction port 30 and blown to the air outlet 3 through the discharge port 29 of the casing 28.

[0028] The air passage 32 is an air passage that communicates from the intake port 2 to the air outlet 3 sequentially through the air cleaning section 5, the filter 12, and the blowing section 7. First, when the fan 27 of the blowing section 7 rotates, the air outside the main body case 4 is sucked in from the intake port 2 and blown into the air passage 32. The air blown into the air passage 32 passes through the air cleaning section 5, and dust and the like are collected by the air cleaning section 5 to become clean air. Next, the clean air passes through the filter 12 holding water and becomes clean humid air containing moisture. The clean humid air is blown out of the main body case 4 from the air outlet 3 through the blowing section 7.

[0029] The control unit 9 controls the gas-liquid contact section 6 (rotating member 14) and the blower 7 (motor 26). Specifically, the control unit 9 controls the operation of the rotating member 14, which is the gas-liquid contact section 6, the rotation speed of the motor 26, which is the blowing section 7, etc. according to the operation of the operation section 34.

[0030] FIG. 8 is a plan view showing the water storage container, the water supply section, and the filter frame section of the humidifying device according to Embodiment 1 of the present invention.

[0031] As shown in FIGS. 4 to 8, the water storage container 11 has a water supply section 35, a water storage section 36, a partition plate 37, and a communication hole 38.

[0032] The partition plate 37 is a plate that partitions the water supply section 35 and the water storage section 36. The partition plate 37 extends upward from the bottom surface of the water storage container 11, and the upper end of the partition plate 37 is disposed above the water surface.

[0033] The communication hole 38 is a horizontally long opening and is disposed at the lower end of the partition plate 37. The communication hole 38 communicates the water supply section 35 and the water storage section 36. The water in the water supply section 35 flows into the water storage section 36 through the communication hole 38. Note that the bottom surface of the water supply section 35 and the bottom surface of the water storage section 36 are disposed on the same plane. Note that water is supplied from the water tank 15 to the water storage container 11 by the valve mechanism, and in a state where the water level in the water storage container 11 is maintained substantially constant, the communication hole 38 is located below the water surface.

[0034] The water supply section 35 is the section where the water tank 15 is disposed. In FIG. 7, it is the right section. Water is supplied from the water tank 15 into the water supply section 35.

[0035] The water storage section 36 is the section where the filter 12 and the filter frame section 13, which are part of the gas-liquid contact section 6, are disposed. In FIG. 8, it is the left section.

[0036] As described above, as shown in FIGS. 3 and 4, the humidifying device 1 includes a main body case 4 having an air inlet 2 and an air outlet 3, an air passage 32 that communicates the air inlet 2 and the air outlet 3 provided in the main body case 4, a blower section 7 provided in the air passage 32, and a gas-liquid contact section 6 provided upstream of the blower section 7 in the air passage 32. The blower section 7 includes a casing 28, a fan 27 provided in the casing 28, and a motor 26 that rotates the fan 27. The casing 28 has a suction port surface 40 having a suction port 30 through which air enters the casing 28 when the fan 27 rotates, a suction port facing surface 41 facing the suction port surface 40, a scroll surface 42 provided between the periphery of the suction port surface 40 and the periphery of the suction port facing surface 41, and above the fan 27, a discharge port 29 surrounded by the opposed scroll surface 42, the suction port surface 40, and the suction port facing surface 41, and through which the air in the casing 28 blows out when the fan 27 rotates. A casing air passage section 43 is provided between the discharge port 29 and the fan 27. Note that the discharge port 29 is connected to the air outlet 3.

[0037] The feature of this embodiment is that a water splash suppressing member 44 is provided in the casing air passage portion 43. As a result, a part of the air blown upward from the fan 27 can be prevented by the water splash suppressing member 44 from having water droplets scattered from the air outlet 3. Specifically, the water splash suppressing member 44 is configured to change the air flow in the casing air passage portion 43 toward the suction port facing surface 41 side. The casing air passage portion 43 is an air passage that extends upward from the fan 27 and communicates the fan 27 with the discharge port 29 of the casing 28. The casing air passage portion 43 has a substantially square tube shape with its central axis extending in the vertical direction, and is surrounded by the suction port surface 40 (the front side surface in the main body case 4) in the casing 28, the suction port facing surface 41 (the back side surface in the main body case 4) facing the suction port surface 40, and the opposed scroll surfaces 42 (the left side surface and the right side surface in the main body case 4) provided between the peripheries of the suction port surface 40 and the suction port facing surface 41. The air blown upward from the fan 27 is blown to the discharge port 29 through the casing air passage portion 43. The water splash suppressing member 44 is configured to change the air blown upward from the fan 27 toward the suction port facing surface 41 side. That is, the air blown upward from the fan 27 has its blowing direction changed to the back side in the main body case 4 by the water splash suppressing member 44.

[0038] Specifically, the water splash suppressing member 44 is a flat plate-shaped protrusion that extends obliquely upward from the inner surface of the suction port surface 40 in the casing air passage portion 43 toward the suction port facing surface 41 side. The left and right end portions of the water splash suppressing member 44 in the main body case 4 are connected to the scroll surfaces 42 (the left side surface and the right side surface in the main body case 4), and there is a space 45 between the tip portion of the water splash suppressing member 44 and the suction port facing surface 41.

[0039] As a result, when a part of the air blown upward from the fan 27 hits the protrusion which is the water splash suppressing member 44, the direction of the wind changes toward the suction port facing surface 41 which is the back side in the main body case 4. The air with the changed wind direction hits the suction port facing surface 41 and is blown upward along the suction port facing surface 41 through the space 45 between the tip portion of the water splash suppressing member 44 and the suction port facing surface 41. That is, the air containing water droplets blown upward from the fan 27 first hits the protrusion which is the water splash suppressing member 44, and some of the water droplets adhere to the water splash suppressing member 44. Further, when it hits the suction port facing surface 41, some of the water droplets adhere to the suction port facing surface 41. As a result, the amount of water droplets contained in the air blown to the discharge port 29 decreases, and the scattering of water droplets from the blowout port 3 can be suppressed. Note that the water splash suppressing member 44 may be a filter having a large number of holes. Thereby, the wind direction can be changed and the blowing resistance can be suppressed, and some of the water droplets can be retained by the filter.

[0040] (Embodiment 2) FIG. 9 is a cross-sectional view of the humidifying device according to Embodiment 2. FIG. 10 is a cross-sectional perspective view of the humidifying device according to Embodiment 2. For the components similar to those in Embodiment 1, the same reference numerals are given, and the detailed description thereof is omitted. As shown in FIGS. 9 and 10, the difference from Embodiment 1 is the water splash suppressing member 44a.

[0041] The water splash suppressing member 44a is configured to change the air flow in the casing air passage portion 43 toward the suction port surface 40 side. The casing air passage portion 43 is an air passage that extends upward from the fan 27 and communicates the fan 27 with the discharge port 29 of the casing 28. The casing air passage portion 43 has a substantially rectangular tube shape with a central axis extending in the vertical direction, and includes a suction port surface 40 (the front side surface of the main body case 4) in the casing 28, a suction port opposing surface 41 (the rear side surface of the main body case 4) opposing the suction port surface 40, and a scroll surface 42 (the left side surface and the right side surface in the main body case 4) provided between the periphery of the suction port surface 40 and the periphery of the suction port opposing surface 41 and opposing each other. The air blown upward from the fan 27 is blown to the discharge port 29 through the casing air passage portion 43. The water splash suppressing member 44a is configured to change the air blown upward from the fan 27 toward the suction port surface 40 side. That is, the air blown upward from the fan 27 has its blowing direction changed to the front side in the main body case 4 by the water splash suppressing member 44a.

[0042] Specifically, the water splash suppressing member 44a is a flat plate-shaped protrusion that extends obliquely upward from the inner surface of the suction port opposing surface 41 in the casing air passage portion 43 toward the suction port surface 40 side. The left and right end portions of the water splash suppressing member 44a in the main body case 4 are connected to the scroll surface 42 (the left side surface and the right side surface in the main body case), and there is a space 45a between the tip portion of the water splash suppressing member 44a and the suction port surface.

[0043] As a result, when the air blown upward from the fan 27 hits the protrusion which is the water splash prevention member 44a, the air flow direction changes toward the suction port surface 40 side which is the front side in the main body case 4. The air with the changed air flow direction hits the suction port surface 40 and is blown upward along the suction port surface 40 through the space 45a between the tip portion of the water splash prevention member 44a and the suction port surface 40. That is, the air containing water droplets blown upward from the fan 27 first hits the protrusion which is the water splash prevention member 44a, and some of the water droplets adhere to the water splash prevention member 44a. Further, when it hits the suction port surface 40, some of the water droplets adhere to the suction port surface 40. As a result, the amount of water droplets contained in the air blown to the discharge port 29 decreases, and the scattering of water droplets from the blowout port 3 can be suppressed. Note that the material of the water splash prevention member 44a may be a filter having a large number of holes. Thereby, while changing the air flow direction, the blowing resistance can be suppressed, and some of the water droplets can be retained by the filter.

[0044] (Embodiment 3) FIG. 11 is a cross-sectional view of the humidifying device according to Embodiment 3. FIG. 12 is a cross-sectional perspective view of the humidifying device according to Embodiment 3. FIG. 13 is a cross-sectional perspective view of the blowout port and the water splash prevention member of the humidifying device according to Embodiment 3. For the components similar to those in Embodiment 1, the same reference numerals are given, and the detailed description thereof is omitted. As shown in FIGS. 11, 12, and 13, the difference from Embodiment 1 is the water splash prevention member 44b.

[0045] The blowout port 3 is provided with a lattice portion 48 having a large number of openings 47, and the water splash prevention member 44b is provided in the casing air passage portion 43 so as to block the casing air passage portion 43 and is characterized by having a large number of holes 46. Thereby, when the air containing water droplets blown upward from the fan 27 passes through the large number of holes 46 of the water splash prevention member 44b, it hits the water splash prevention member 44b, and some of the water droplets adhere to the water splash prevention member 44b. Further, some of the water droplets that have passed through the large number of holes 46 of the water splash prevention member 44b adhere to the lattice portion 48 having a large number of openings 47 disposed at the blowout port 3. As a result, the amount of water droplets contained in the air blown to the discharge port 29 decreases, and the scattering of water droplets from the blowout port 3 can be suppressed.

[0046] Also, the area of the holes 46 of the water splash suppressing member 44b is smaller than the area of the openings 47 of the lattice portion 48. Since the water splash suppressing member 44b is provided in the casing air passage portion 43, it is arranged on the windward side in the air passage 32 rather than the lattice portion 48 of the air outlet 3. Thereby, further, water droplets that have passed through the water splash suppressing member 44b adhere to the lattice portion 48, and it is possible to suppress the scattering of water droplets from the air outlet 3.

[0047] Also, the vertical dimension of the water splash suppressing member 44b is larger than the vertical dimension of the lattice portion 48, and the water splash suppressing member 44b has a porous shape. Porous means that there are a plurality of holes in the vertical direction of the water splash suppressing member 44b, and these holes have a continuous structure in which they communicate with each other. Thus, since the water splash suppressing member 44b has holes with a large number of continuous structures in the vertical direction, even when water droplets adhering to the lower holes in the water splash suppressing member 44b scatter again, they are likely to adhere to the upper holes in the water splash suppressing member 44b again, and it is possible to suppress the re - scattering of the water droplets adhering to the water splash suppressing member 44b.

[0048] Also, the opening area of the numerous holes 46 of the water splash suppressing member 44b is larger than the opening area of the numerous openings 47 of the lattice portion 48. Thereby, the blowing resistance in the water splash suppressing member 44b is suppressed, and a decrease in the air volume blown from the air outlet 3 can be reduced.

[0049] In addition, the humidifying device 1 has a cylindrical air outlet 3 with a central axis extending in the vertical direction at the upper part of the main body case 4. Below the air outlet 3, there is a lattice part 48 provided with a number of openings 47, and above the air outlet 3, there are a plurality of louvers 3a that rotate in the vertical direction. The air outlet 3, the louvers 3a, and the lattice part 48 are integrally formed, and this is the air outlet unit 49. The air outlet unit 49 is configured to be detachable from the upper part of the main body case 4. The water splash suppressing member 44b provided in the casing air passage part 43 below the air outlet unit 49 is configured to be detachable from the mounting part 50 provided in the casing air passage part 43. When the user removes the air outlet unit 49 from the main body case 4, the user can detach the water splash suppressing member 44b having flexibility in the casing air passage part 43 from above the main body case 4.

Industrial Applicability

[0050] The humidifying device according to the present invention can suppress the scattering of water droplets from the air outlet, so it is useful as a humidifying device used for business or household use.

Explanation of Reference Numerals

[0051] 1 Humidifying device 2 Air inlet 3 Air outlet 3a Louver 4 Main body case 4a Door 5 Air purification part 6 Gas-liquid contact part 7 Blower part 9 Control part 10 Water supply part 11 Water storage container 12 Filter 13 Filter frame part 14 Rotating member 15 Water tank 16 Support part 16a First support plate 16b Second support plate 17a First bearing 17b Second bearing 20 First filter frame 21 Second filter frame 22 Opening 23 First rotating shaft 24 Opening 25 Second rotating shaft 26 Motor 27 Fan 28 Casing 29 Outlet 30 Inlet 31 Rotating shaft 32 Air duct 34 Operation part 35 Water supply section 36 Water storage section 37 Partition board 38 Communication hole 40 Inlet surface 41 Inlet opposite surface 42 Scroll surface 43 Casing air duct part 44 Water splash suppression member 44a Water splash suppression member 44b Water splash suppression member 45 Space 45a Space 46 Hole 47 Opening 48 Lattice part 49 Outlet unit 50 Mounting part

Claims

【Claim 1】 A main body case having an air inlet and an air outlet, An air passage communicating the air inlet and the air outlet provided in the main body case, A blower provided in the air passage, A gas-liquid contact part provided upstream of the blower in the air passage, and comprising: The blower is A casing, A fan provided in the casing, A motor for rotating the fan, and comprising: The casing is An intake port surface having an intake port through which air enters the casing when the fan rotates, An intake port opposing surface opposing the intake port surface, A scroll surface provided between the periphery of the intake port surface and the periphery of the intake port opposing surface, Above the fan, surrounded by the opposing scroll surface, the intake port surface, and the intake port opposing surface, and having a discharge port through which the air in the casing blows out when the fan rotates, And having, A casing air passage part is provided between the discharge port and the fan, A water splash suppressing member is provided in the casing air passage part, The water splash suppressing member is A protrusion extending obliquely upward from the inner surface of the intake port opposing surface in the casing air passage part, The intake port surface facing the water splash suppressing member is characterized in that the distance from the intake port opposing surface increases from bottom to top, a humidifying device.

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