JP2022044225A - Humidifier - Google Patents

Abstract

To provide a humidifier enabling reduction of noise when air is introduced into a feed water tank.SOLUTION: A humidifier includes a bottomed cylindrical sound absorbing case 50 covering an on-off valve 21. A plurality of air discharge ports 510 are provided in an upper part of a side surface 51 of the sound absorbing case 50, and a top surface 52 of the sound absorbing case 50 includes an inclined surface 520 inclined downwardly toward the center. Air ascending within the sound absorbing case 50 is guided by the inclined surface 520 and then, reaches the plurality of air discharge ports 510. Water to be supplied to a water tank part 6 passes through a water passage part 511 provided below a lower end of the side surface 51 of the sound absorbing case 50 or in a lower part of the side surface 51 of the sound absorbing case 50 toward an outflow port 20. Due to this structure, interference between water and air can be suppressed. Thus, air bubbles from the plurality of air discharge ports 510 are smoothly discharged to become fine air bubbles, so that noise generated when air is introduced into a feed water tank 10 can be reduced.SELECTED DRAWING: Figure 6

Description

The present invention relates to a humidifying device that humidifies indoor air, and particularly relates to a humidifying device that reduces noise when water is supplied from a water supply tank to a water tank portion.

Conventionally, a humidifying device includes a humidifying means for generating humidified air, a water tank portion in which a certain amount of water is stored and water is supplied to the humidifying means, and a water supply tank having an outlet for supplying water to the water tank portion. The water supplied to the water tank is stored in the water supply tank. In such a humidifying device, when air is humidified by a humidifying means and the water in the water tank portion is consumed, water is supplied from the water supply tank to the water tank portion through the outlet and a constant amount of water is always supplied to the water tank portion. Water is stored.

When water is supplied from the water supply tank to the water tank portion, air is introduced into the water supply tank instead, but at this time, the air introduced into the water supply tank generates a bumpy noise. In order to reduce such noise, a humidifying device having a sound deadening case having a plurality of openings at the outlet has been proposed. (For example, Patent Document 1)

Japanese Unexamined Patent Publication No. 09-004885

However, in the structure of Patent Document 1, since a plurality of openings provided only in the upper part of the muffling case are used as a path for water and air to enter and exit the muffling case, water and flow from the plurality of openings to the outlet. It is conceivable that the air from the outlet to the plurality of openings interferes in the muffling case and hinders the discharge of the air from the plurality of openings. If the discharge of air from the plurality of openings is obstructed, the bubbles are not discharged from the plurality of openings into the water supply tank until the bubbles have a sufficient buoyancy, and the effect of noise reduction may not be sufficiently obtained.

An object of the present invention is to solve the above problems, and an object of the present invention is to provide a humidifying device that reduces noise when air is introduced into a water supply tank.

The present invention
Humidifying means to generate humidified air and
A water tank unit that stores a certain amount of water and supplies water to the humidifying means,
A water supply tank that stores water to be supplied to the water tank,
An outlet provided at the bottom of the water supply tank for supplying water to the water tank portion,
An on-off valve that opens and closes the outlet,
A ceiling cylinder-shaped sound deadening case that covers the on-off valve is provided.
The side surface of the muffling case has a plurality of air outlets at the top.
The top surface of the muffling case has an inclined surface that inclines downward toward the center.
It is a humidifying device provided with a water passage portion below the lower end of the side surface of the muffling case or below the side surface of the muffling case.

By configuring as described above, it becomes a humidifying device that reduces noise when air is introduced into the water supply tank.

It is external perspective view of the humidifying apparatus in this embodiment. It is a vertical cross-sectional block diagram of the humidifying apparatus in this embodiment. It is a vertical sectional view of the water supply tank in this embodiment. It is external perspective view of the muffling case in this embodiment. It is a figure which shows the modification of the water passage part. It is a figure which shows the air and the flow of water in a water supply tank in this embodiment.

Embodiments of the present invention which are considered to be suitable will be briefly described by showing the operation of the present invention.

The present invention is a humidifying device provided with a ceiling-shaped silencer case that covers an on-off valve that opens and closes an on-off valve that opens and closes an outlet for supplying water from a water supply tank to a water tank portion. It has a discharge port, and the top surface of the muffling case has an inclined surface that inclines downward toward the center, and a water passage portion is provided below the lower end of the side surface of the muffling case or below the side surface of the muffling case. .. The air introduced into the water supply tank from the outlet rises in the muffling case and is guided to a plurality of air outlets by the inclined surface. Since multiple air outlets are provided on the upper side of the muffling case, the air path introduced into the water supply tank from the outlet and directed to the multiple air outlets passes through the water passage from outside the muffling case. Interference with the water path to the outlet is suppressed, and interference between water and air is suppressed. As a result, bubbles can be smoothly discharged from the plurality of air discharge ports to become fine bubbles, and noise when air is introduced into the water supply tank can be reduced.

Further, the outlet is provided with a seal portion that protrudes from the bottom of the water supply tank and comes into contact with the on-off valve, and the upper end of the water passage portion is at the same height as the upper end of the seal portion or below the upper end of the seal portion. positioned. This prevents the air introduced into the water supply tank from the outlet from being discharged from the water passage part without rising inside the muffling case, and guides the air introduced into the water supply tank to the upper part of the muffling case. can. Therefore, the effect of noise reduction by the plurality of air outlets can be sufficiently exerted, and the water supply to the water tank portion can be performed more smoothly without being hindered by the air.

In addition, the on-off valve slides up and down and has a contact portion that comes into contact with the seal portion. Is also located above. As a result, the bubbles discharged from the plurality of air outlets are made to have an appropriate size. Therefore, it is possible to reduce noise when air is introduced into the water supply tank.

Further, the on-off valve includes a shaft and a flange portion provided around the shaft and including a contact portion, and the peripheral edge of the flange portion is above the contact portion and silences from the lower end of the inclined surface. It is located on the side surface side of the case, and the lower ends of the plurality of air outlets are located above the peripheral edge of the collar. As a result, the air that has risen inside the muffling case is guided upward along the flange and rises to the inclined surface. Therefore, the air introduced into the water supply tank can be discharged more smoothly from the plurality of air discharge ports.

Further, the lower ends of the plurality of air outlets are located above the lower ends of the inclined surface. As a result, the air is discharged from the plurality of air outlets after rising to the inclined surface. Therefore, it is possible to effectively guide the air to a plurality of air outlets by the inclined surface.

Further, the plurality of air outlets have a slit shape having an opening width shorter than the opening height, and the distance between the plurality of air outlets is equal to or less than the opening width. As a result, a plurality of air outlets can be densely arranged in the circumferential direction. Therefore, even if the air is biased in a specific direction in the sound deadening case due to the tilt of the humidifying device, it is possible to prevent the air bubbles from continuing to be emitted only from the specific opening and the air bubble discharge time from becoming long, and the noise generation time. Can be shortened.

Further, the plurality of air outlets extend downward from at least the upper end of the side surface of the muffling case, and the opening surface is vertical. As a result, the air smoothly reaches the plurality of air outlets without stagnation of the air flow toward the plurality of air outlets along the inclined surface of the top surface. Further, since the opening surface is vertical, the air discharged from the plurality of air discharge ports can overcome the water pressure and the surface tension of the water with a small buoyancy, and is discharged as fine bubbles. Therefore, it is possible to reduce noise when air is introduced into the water supply tank.

In addition, the muffling case is detachably attached to the water supply tank. As a result, the muffling case can be removed from the water supply tank, and the inner surface of the muffling case can be washed with a brush or the like. Therefore, the muffling case can be kept clean.

In addition, it is equipped with a cartridge that is detachably mounted inside the water supply tank and contains a material containing a component that elutes in water, and the side surface of the sound deadening case has a mounting piece that extends from the outer surface, and the mounting piece is It is sandwiched between the water tank and the cartridge. This does not require complicated operations to install the muffling case. Therefore, the muffling case can be easily attached and detached.

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

FIG. 1 is an external perspective view of the humidifying device according to the present embodiment. On the upper surface of the main body 1 of the humidifying device, an operation unit 2 provided with a large number of switches for instructing the operation of the humidifying device, a humidity display unit 3 for displaying the humidity in the room, and an outlet 4 for blowing out humidified air are provided. Has been done. Further, a water supply tank 10 for supplying water to the water tank portion 6, which will be described later, is detachably provided on the main body 1.

FIG. 2 is a vertical cross-sectional configuration diagram of the humidifying device according to the present embodiment. A suction port 5 for taking indoor air into the main body 1 is provided on the back surface of the main body 1. Further, a water tank portion 6 in which water is supplied from the water supply tank 10 to store a certain amount of water is supplied to the bottom of the main body 1, and a vaporization filter 7 which is a humidifying means arranged in the water tank portion 6 to generate humidified air. Is provided. A part of the vaporization filter 7 is immersed in the water in the water tank portion 6, and the vaporization filter 7 is moistened by sucking up the water.

A blower 32 including a motor 30 and a sirocco fan 31 is provided above the vaporization filter 7, and the blower 32 drives the blower to blow air from the suction port 5 to the air outlet 4. Further, upstream of the vaporization filter 7 in the ventilation path, a warm air heater 33 for heating the air introduced from the suction port 5 to make warm air is provided.

In the above-mentioned humidifying device, when the operation unit 2 instructs to start the operation of the humidifying device, the blower 32 is driven and the sirocco fan 31 rotates, so that the air in the room is taken in from the suction port 5. The taken-in air becomes warm air while passing through the warm air heater 33, and the warm air becomes humidified air by passing through the vaporization filter 7, and the humidified air is discharged into the room from the outlet 4. Humidification operation is performed.

FIG. 3 is a vertical sectional view of the water supply tank according to the present embodiment. The water supply tank 10 detachably provided on the main body 1 includes a tank main body 11 for storing water and a tank cap 12 attached to the tank main body 11. In this embodiment, since the water supply tank 10 is attached to the main body 1 so that the tank cap 12 is on the bottom, the tank cap 12 is the bottom of the water supply tank 10. The water supply tank 10 may be of the upper water supply type, in which case the bottom of the tank body 11 becomes the bottom of the water supply tank 10.

The tank cap 12 includes an outlet 20 for supplying water to the water tank portion 6 and an on-off valve 21 for opening and closing the outflow port 20, and the on-off valve 21 is pushed up from a pin portion 22 projected from the water tank portion 6. It slides up and down depending on the presence or absence to open and close the outlet 20. Further, the outlet 20 includes a seal portion 200 that protrudes in a cylindrical shape from the tank cap 12 and comes into contact with the on-off valve 21. Further, the on-off valve 21 includes a shaft 210 that abuts on the pin portion 22, and a flange portion 212 that is provided around the shaft 210 and includes a contact portion 211 that abuts on the upper end of the seal portion 200. Is located above the contact portion 211 and closer to the side surface 51 of the muffling case 50 than the lower end of the inclined surface 520 of the muffling case 50. The details of the muffling case 50 will be described later. In the present embodiment, the flange portion 212 has a shape that warps upward toward the peripheral edge, but may have another shape as long as the peripheral edge is located above the contact portion 211.

Further, the water supply tank 10 is provided with a cartridge 40 which is an annular resin product in which a material containing a component eluted with water is housed. The tank cap 12 includes a partition wall 201 formed around the outlet 20 so as to surround the outlet 20, and a male screw 202 is formed on the outside of the partition wall 201. The male screw 202 is attached to the inner peripheral wall of the cartridge 40. The cartridge 40 is attached to the tank cap 12 by screwing the formed female screw 41. Further, a sound deadening case 50 for reducing noise generated by the air introduced into the water supply tank 10 is detachably provided between the tank cap 12 and the cartridge 40.

When the water supply tank 10 is attached to the main body 1, or when the water in the water tank portion 6 is consumed and water is supplied from the water supply tank 10 to the water tank portion 6, the water is replaced with water from the outlet 20 into the water supply tank 10. Air is introduced. At this time, if the air becomes large bubbles, a bumpy noise is generated, but by providing the muffling case 50, the size of the bubbles can be reduced and the noise can be suppressed.

FIG. 4 is an external perspective view of the muffling case according to the present embodiment. The muffling case 50 is a topped cylinder-shaped resin part having a side surface 51 and a top surface 52, and has a plurality of air outlets 510 on the upper portion of the side surface 51. In the present embodiment, the plurality of air outlets 510 have openings extending from the top surface 52 to the side surface 51, but may not be open to the top surface 52.

The top surface 52 is composed of an inclined surface 520 that inclines downward toward the center and a horizontal plane 521 that extends horizontally from the lower end of the inclined surface 520. The top surface 52 may be provided with a protruding portion protruding upward in the center of the horizontal plane 521, and can be opened and closed by fitting the upper portion of the on-off valve 21 pushed up by the pin portion 22 into the space formed by the protruding portion. The shape may be such that avoiding contact between the valve 21 and the top surface 52. Further, as shown in FIG. 3, the water supply tank 10 of the present embodiment is provided with the lower end of the side surface 51 of the muffling case 50 having a predetermined gap with the tank cap 12, and is more than the lower end of the side surface 51. The lower part is the water passage part 511 through which water flows.

Further, the muffling case 50 is provided with a plurality of mounting pieces 515 extending in the horizontal direction from the outer surface of the side surface 51 at intervals, and in this embodiment, four mounting pieces 515 are provided at equal intervals. When the sound deadening case 50 is placed on the tank cap 12 so as to cover the on-off valve 21, the mounting piece 515 and the upper end of the partition wall 201 come into contact with each other. When the cartridge 40 is covered over the cartridge 40 and turned clockwise and screwed into the tank cap 12, the mounting piece 515 is sandwiched between the partition wall 201 and the cartridge 40 and mounted on the tank cap 12.

As described above, by making the muffling case 50 detachable from the water supply tank 10, the muffling case 50 can be removed from the water supply tank 10 and the inner surface of the muffling case 50 can be washed with a brush or the like. Therefore, the muffling case 50 can be kept clean. Further, since the muffling case 50 is attached to the tank cap 12 by being sandwiched between the tank cap 12 and the cartridge 40, complicated operation is not required for attaching the muffling case 50. Therefore, the user can easily attach / detach the muffling case 50.

In the humidifying device configured as described above, when the water supply tank 10 is attached to the main body 1, the water supply tank 10 is in a state of being erected in the water tank portion 6, and the on-off valve 21 is provided by the pin portion 22 provided in the water tank portion 6. Is pushed up and the upper end of the seal portion 200 and the contact portion 211 are separated from each other, so that the outlet 20 is opened. When the outlet 20 is opened, the water stored in the water supply tank 10 is supplied to the water tank portion 6 through the outlet 20. When the water in the water tank portion 6 is consumed by the humidification operation, water is supplied from the water supply tank 10 to the water tank portion 6 through the outlet 20, and a constant amount of water is always stored in the water tank portion 6.

The air introduced into the water supply tank 10 from the outlet 20 rises in the muffling case 50 and reaches the inclined surface 520. The inclined surface 520 narrows the space between the inclined surface 520 and the side surface 51 toward the upper part of the muffling case 50, and when the air rises from the lower end to the upper end of the inclined surface 520, the air is discharged from the plurality of air outlets 510. It is discharged so as to be pushed out of the muffling case 50. Since the plurality of air outlets 510 are provided on the upper surface 51 of the side surface 51 of the muffling case 50, the air path introduced into the water supply tank 10 from the outlet 20 and directed to the plurality of air outlets 510 is the muffling case 50. Interference with the water path from the outside to the outlet 20 through the water passage portion 511 is suppressed, and interference between water and air is suppressed. As a result, bubbles can be smoothly discharged from the plurality of air discharge ports 510 to become fine bubbles, and noise when air is introduced into the water supply tank 10 can be reduced.

In the present embodiment, the inclined surface 520 is inclined downward from the peripheral edge of the top surface 52 toward the center. As a result, air can be effectively pushed out of the muffling case 50 from the plurality of air outlets 510.

Further, it is preferable that the plurality of air discharge ports 510 are provided so as to extend downward from at least the upper end of the side surface 51 of the muffling case 50 and the opening surface thereof is perpendicular to the water surface in the water supply tank 10. Since the plurality of air outlets 510 extend from at least the upper end of the side surface 51 of the muffling case 50, the air flow toward the plurality of air outlets 510 along the inclined surface 520 of the top surface 52 is not blocked. It smoothly reaches the plurality of air outlets 510. Further, since the opening surfaces of the plurality of air discharge ports 510 are provided so as to be perpendicular to the water surface in the water supply tank 10, the air guided to the plurality of air discharge ports 510 is supplied with a small buoyancy. Since it can overcome the water pressure and surface tension of the water in the tank 10, it becomes fine bubbles and is discharged from the plurality of air discharge ports 510.

The water passage portion 511 is not limited to the form shown in FIG. FIG. 5 is a diagram showing a modified example of the water passage portion. In FIG. 3, the lower end of the side surface 51 is provided with a predetermined distance from the tank cap 12, and the water passage portion 511 is below the lower end of the side surface 51. It can also be provided. A sound deadening case 50 is provided so that the lower end of the side surface 51 and the tank cap 12 come into contact with each other or are integrated with each other, and a notch 512 is provided from the lower end of the side surface 51 (A), or a slit 513 is provided at the lower portion of the side surface 51. (B) may be used. In (B), the water passage portion 511 is a substantially rectangular slit 513, but the shape is not limited to this.

Next, with reference to FIG. 6, the flow of air and water in the vicinity of the muffling case 50 will be described in more detail.

FIG. 6 is a diagram showing the flow of air and water in the water supply tank in the present embodiment, and is a diagram in which the main part of FIG. 3 is enlarged and the air flow is added by a solid line arrow and the water flow is added by a broken line arrow. be. The air introduced into the water supply tank 10 from the outlet 20 rises upward while diffusing laterally in the muffling case 50, and first reaches the contact portion 211 of the flange portion 212. Then, the air rises from the contact portion 211 to the peripheral edge along the flange portion 212, then separates from the peripheral edge of the flange portion 212 and further rises in the muffling case 50, but the peripheral edge of the flange portion 212 is the inclined surface 520. Since it is located on the side surface 51 side of the muffling case 50 from the lower end, the air rises toward the inclined surface 520. Then, the air that has reached the inclined surface 520 is discharged from the plurality of air discharge ports 510 so as to be pushed out. Further, the water in the water supply tank 10 passes through the space provided between the mounting pieces 515 and reaches the water passage portion 511. After that, the water that has passed through the water passage portion 511 is supplied from the outlet 20 to the water tank portion 6.

At this time, the upper end of the water passage portion 511 may be positioned at the same height as the upper end of the seal portion 200 or below the upper end of the seal portion 200. As a result, it is possible to prevent the air diffused laterally in the muffling case 50 from being discharged from the water passage portion 511 to the outside of the muffling case 50. When air is discharged from the water passage part 511, some of the air does not reach the plurality of air discharge ports 510, so that the noise reduction effect of the plurality of air discharge ports 510 cannot be fully exerted, but it is introduced in the water supply tank 10. By guiding the air to the upper part of the muffling case 50 without letting it escape, the effect of noise reduction by the plurality of air outlets 510 can be fully exhibited. Further, it is possible to suppress the flow of water passing through the water passage portion 511 from being disturbed by the air, and to supply water to the water tank portion 6 more smoothly.

Further, even if the lower ends of the plurality of air discharge ports 510 are positioned above the position of the contact portion 211 when the on-off valve 21 is at the upper limit of the sliding range (that is, when it is pushed up by the pin portion 22). good. As a result, the bubbles discharged from the plurality of air discharge ports 510 can be made to an appropriate size. The larger the plurality of air outlets 510, the larger the air bubbles and the louder the noise. Noise when air is introduced can be reduced.

Further, the lower ends of the plurality of air discharge ports 510 may be positioned above the peripheral edge of the flange portion 212. As a result, the air introduced into the water supply tank 10 can be guided to the plurality of air discharge ports 510 along the flange portion 212, and can be discharged more smoothly from the plurality of air discharge ports 510.

Further, the lower ends of the plurality of air discharge ports 510 may be positioned above the lower ends of the inclined surface 520. As a result, the air introduced into the water supply tank 10 is discharged from the plurality of air discharge ports 510 after reaching the inclined surface 520, and the inclined surface 520 induces the air to the plurality of air discharge ports 510. You can do it effectively.

Further, as shown in FIG. 4, the plurality of air discharge ports 510 may have a slit shape having an opening width shorter than the opening height, and the distance between the plurality of air discharge ports 510 may be equal to or less than the opening width.

If the distance between the plurality of air outlets 510 is wide, when the air is biased in a specific direction in the sound deadening case 50 due to the inclination of the humidifying device or the like, only from a specific opening of the plurality of air outlets 510. Bubbles will be discharged. At this time, since there are few openings that serve as air discharge ports, it takes time to discharge the air in the muffling case 50, and the air bubble discharge time becomes long. That is, the noise is reduced, but there arises a problem that the time during which the noise is generated becomes long. Therefore, by forming the plurality of air discharge ports 510 into a slit shape having an opening width shorter than the opening height and setting the distance between the plurality of air discharge ports 510 to be equal to or less than the opening width, the plurality of air discharge ports 510 are set in the circumferential direction. It can be densely arranged and many openings can be air outlets. Therefore, even when the air is biased in a specific direction in the muffling case 50, the noise generation time can be shortened without lengthening the bubble discharge time.

The opening height is preferably 2 mm or more. As a result, air bubbles can be stably discharged from the plurality of air discharge ports 510.

6 Water tank 7 Humidifying means (vaporization filter)
10 Water supply tank 20 Outlet 21 On-off valve 50 Silencer case 51 Side 52 Top surface 510 Multiple air outlets 520 Inclined surface 511 Water flow part

Claims (9)

Humidifying means to generate humidified air and
A water tank unit that stores a certain amount of water and supplies water to the humidifying means,
A water supply tank that stores water to be supplied to the water tank,
An outlet provided at the bottom of the water supply tank for supplying water to the water tank portion,
An on-off valve that opens and closes the outlet,
A ceiling cylinder-shaped sound deadening case that covers the on-off valve is provided.
The side surface of the muffling case has a plurality of air outlets at the top.
The top surface of the muffling case has an inclined surface that inclines downward toward the center.
A humidifying device having a water passage portion below the lower end of the side surface of the muffling case or below the side surface of the muffling case. The outlet comprises a seal that projects from the bottom of the water supply tank and abuts the on-off valve.
The humidifying device according to claim 1, wherein the upper end of the water passage portion is located at the same height as the upper end of the seal portion or below the upper end of the seal portion. The on-off valve slides up and down and has a contact portion that comes into contact with the seal portion.
The humidifying device according to claim 1 or 2, wherein the lower ends of the plurality of air outlets are located above the position of the contact portion when the on-off valve is at the upper limit of the sliding range. The on-off valve includes a shaft and a flange provided around the shaft and includes a contact portion.
The peripheral edge of the flange portion is located above the contact portion and on the side surface side of the sound deadening case from the lower end of the inclined surface.
The humidifying device according to claim 3, wherein the lower ends of the plurality of air outlets are located above the peripheral edge of the flange portion. The humidifying device according to claim 3 or 4, wherein the lower ends of the plurality of air outlets are located above the lower ends of the inclined surface. The plurality of air outlets have a slit shape in which the opening width is shorter than the opening height.
The humidifying device according to any one of claims 3 to 5, wherein the distance between the plurality of air outlets is equal to or less than the opening width. The humidifying device according to any one of claims 1 to 6, wherein the plurality of air outlets extend downward from at least the upper end of the side surface of the muffling case, and the opening surface is vertical. The humidifying device according to any one of claims 1 to 7, wherein the muffling case is detachably attached to the water supply tank. A cartridge that is detachably mounted inside the water supply tank and contains a material containing a component that elutes into water is provided.
The side surface of the muffling case has a mounting piece extending from the outer surface.
The humidifying device according to claim 8, wherein the mounting piece is sandwiched between the water supply tank and the cartridge.

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