JP2015148421A - humidifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a humidifier which can suppress generation of bacteria while suppressing discoloration and hardening of a humidification filter, and which can be used cleanly for a long time.SOLUTION: In a ventilation flue 8 for communicating an air inlet 3 and an air outlet 4, a humidifier includes: a fan 9; a humidification filter 10; a water storage part 13 for supplying water to the humidification filter 10; and an active species generation part 12 for generating active species by electric discharge between the humidification filter 10 and the fan 9 in the ventilation flue 8. In the active species generation part 12 comprising a discharge electrode 15 and a counter electrode 16, an opening 22 is formed so that ultraviolet light generated by the electric discharge is not directly radiated to the humidification filter 10, and the opening 22 of the counter electrode 16 and the water storage part 13 are located on an extended shaft of the discharge electrode 15. Thus, a humidifier which can be used cleanly for a long time can be acquired by keeping a surface of the humidification filter 10 hydrophilic and dissolving the active species in the water.

Description

  The present invention relates to a humidifying device that is used to humidify indoor air and has a filter as a humidifying means.

  Conventionally, this type of humidifier is known in which a discharge unit is provided upstream of a humidification filter and the discharge unit is intermittently operated in conjunction with the operation of the humidifier (see, for example, Patent Document 1).

  As shown in FIG. 10, a blower 103 that blows air from the suction port 101 to the blowout port 102, a water tank part 104 that stores water inside the main body, water in the water tank part 104, and water by the air of the blower 103. In a vaporizing humidifier equipped with a humidifying filter 105 for vaporizing and a controller for controlling the humidifying operation, a discharge unit 106 is provided upstream of the humidifying filter 105, and the controller intermittently operates the discharge unit 106 in conjunction with the humidifying operation. To drive. Using active species such as ozone and hydrogen peroxide generated from the discharge unit, it is possible to suppress the generation and growth of germs on the surface of the humidifying filter and in the water tank, and prevent the release of malodors and germs from the air outlet. It was something to do.

JP 2006-153316 A

  Conventional humidifiers use ozone, hydrogen peroxide, etc. to suppress the generation and growth of germs, but the effect is not sufficient. As a result, there is a problem that the humidification filter made of resin or cellulose tends to deteriorate. The deteriorated humidifying filter is discolored and cured, and has a problem that it is easily damaged during cleaning operations due to appearance problems and fiber curing.

  Accordingly, the present invention solves the above-described conventional problems, and provides a humidifier that can suppress the occurrence and growth of various bacteria while suppressing discoloration and hardening of the humidification filter, and can be used cleanly for a long period of time. With the goal.

In order to achieve this object, the present invention provides a main body having a suction port and a blower outlet, a fan, and an air disposed upstream of the fan in a ventilation path communicating the suction port and the blower outlet. A humidifying device comprising a humidifying filter for humidifying, a water storage unit for supplying water to the humidifying filter, and an activity generating unit for generating active species by discharge between the humidifying filter and the fan in the ventilation path,
The active species generating unit is located above the upper end of the humidifying filter of the ventilation path, and is a cylindrical discharge electrode to which a high voltage is applied, and a counter electrode provided with a part of the opening facing the discharge electrode And
The counter electrode is formed with an opening so that ultraviolet rays generated by the discharge are not directly applied to the humidifying filter,
The opening and the water storage part of the counter electrode are located on the extended axis of the discharge electrode, thereby achieving the intended purpose.

  ADVANTAGE OF THE INVENTION According to this invention, generation | occurrence | production and proliferation of various microbes can be suppressed, suppressing the discoloration and hardening of a humidification filter, and the humidification apparatus which can be used cleanly for a long period of time can be obtained.

The perspective view which shows the humidification apparatus of Embodiment 1 and 3 of this invention Side surface sectional view which shows the humidification apparatus of Embodiment 1 of this invention Front sectional view showing a humidifying device according to Embodiment 1 of the present invention. Front sectional view showing a humidifier when operation is stopped according to Embodiment 1 of the present invention. Schematic cross-sectional view showing the active species generating part of Embodiment 1 of the present invention The schematic perspective view which shows the humidification filter of Embodiment 2 of this invention. Schematic sectional view showing a humidifying filter according to Embodiment 2 of the present invention. Front sectional drawing which shows the humidification apparatus of Embodiment 3 of this invention Schematic perspective view of a humidifying filter according to Embodiment 3 of the present invention. Schematic sectional view showing a conventional humidifier

The humidifying device according to claim 1 of the present invention humidifies air by being disposed upstream of the fan and a main body having a suction port and a blower outlet, and a ventilation path communicating the suction port and the blower outlet. A humidifying device comprising a humidifying filter, a water storage unit that supplies water to the humidifying filter, and an active species generating unit that generates active species by discharge between the humidifying filter and the fan in the ventilation path,
The active species generating unit is located above the upper end of the humidifying filter of the ventilation path, and is a cylindrical discharge electrode to which a high voltage is applied, and a counter electrode provided with a part of the opening facing the discharge electrode And
The counter electrode is formed with an opening so that ultraviolet rays generated by the discharge are not directly applied to the humidifying filter,
The opening of the counter electrode and the water reservoir are located on the extension axis of the discharge electrode. Thereby, the active species and ultraviolet rays generated from the active species generating part are released toward the water in the water tank, not the humidifying filter formed of resin, cellulose fiber or the like. As a result, while avoiding deterioration of the humidifying filter, the active species and ultraviolet rays can be used in combination to suppress the growth of germs in the water and decompose organic substances, and the water for humidification can be kept clean for a long period of time.

  In addition, a photocatalyst is provided in the water tank, and ultraviolet rays generated by discharge are directly applied to the photocatalyst. Photocatalytic reaction occurs due to ultraviolet rays, and active species such as OH radicals and hydrogen peroxide are generated. In addition to the active species generated in the vicinity of the electrode due to discharge, the amount of active species increases due to the generation of active species by photochemical reaction, and the active species dissolves in water, thereby decomposing bacteria and organic matter in water. Can keep the water even cleaner.

  Further, the water level is varied so that the photocatalyst is below the water surface during the humidifying operation and above the water surface when the humidifying operation is stopped. Thereby, the active species can be efficiently dissolved in water during the humidification operation, and a clean humidification operation can be performed. When the humidification operation is stopped, by not contacting the photocatalyst with water, the active species are released into the air rather than underwater, and the active species are brought into contact with the bacteria and mold attached to the humidifying filter, the ventilation path, and the fan. Can be kept clean.

  In addition, the humidifying filter includes two knitted fabrics having a plurality of openings and a plurality of connecting fibers that connect the two knitted fabrics with a space therebetween, and retains water between the knitted fabric and the connecting fibers. It is characterized by comprising a knitted fabric. Since the humidification filter is made of fiber, it is flexible, and when the underwater scale or the like adheres to the humidification filter, the humidification filter can be scrubbed or pressed, and the scale adhered to the gap between the fibers. The hard dirt can be easily washed to obtain a clean humidifier.

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

(Embodiment 1)
As shown in FIG. 1, the humidifying device 1 of the present invention includes a suction port 3 on the side surface of the main body case 2 and an air outlet 4 on the upper side. An operation unit 5 and a display unit 6 are provided on the upper part of the main body case 2, and the water tank 7 can be pulled out from above to supply water. 2 and 3 are schematic cross-sectional views during operation of the apparatus. A fan 9 as a blowing means, a humidifying filter 10, a humidifying filter case 11 that stabilizes the shape of the humidifying filter 10, and active species and ultraviolet light are placed in the ventilation path 8 that communicates the suction port 3 and the outlet 4 with each other. An active species generating unit 12 is provided. The water storage unit 13 has a tray shape for accumulating water supplied from the water tank 7, and the upper part is open to form a ventilation path. A constant amount of water is always held in the water storage section 13 by the action of an adjustment valve integrated with the water tank 7. An antibacterial component generating member 14 is installed in the water reservoir 13 so that the antibacterial component and the antifungal component can be eluted in water. The antibacterial component generating member 14 preferably contains a photocatalyst. Lower portions of the humidifying filter 10 and the humidifying filter case 11 are in contact with water, and the humidifying filter 10 is in a wet state due to a capillary phenomenon. The dried air introduced from the suction port 3 is sent to the humidifying filter 10 wetted by the fan 9, and water is vaporized by the humidifying filter 10 so that the humidified air is discharged from the outlet 4. In order to make it easy to understand the configuration of the ventilation path 8, the air passage 8 a upstream from the humidification filter 10, the ventilation path 8 b to the installation position of the humidification filter 10 and the active species generation section 12, and the fan 9 from the active species generation section 12 are connected. It is called the ventilation path 8c to the containment outlet 4. The arrows in the figure indicate the flow of wind when the fan 9 is operated.

  The antibacterial component generating member 14 installed in the water storage unit 13 elutes antibacterial components and fungicidal components into water and includes a photocatalyst. For example, when titanium oxide is used as a photocatalyst, hydrogen peroxide and OH radicals are generated as active species by the reaction of water and oxygen when exposed to ultraviolet rays. When ultraviolet rays are irradiated to titanium oxide in water, active species are mainly dissolved in water and come into contact with bacteria and molds that propagate in the water of the water storage section 13 to exert antibacterial / antifungal action. When the titanium oxide in the air is irradiated with ultraviolet rays, the active species are mainly released into the air and come into contact with bacteria and mold attached to the humidifying filter 10, the ventilation path 8, and the fan 9, and the ventilation path 8 is cleaned. Can be kept in.

  During the humidifying operation, air is sucked by the fan 9. Since the humidification filter 10 has ventilation resistance, the ventilation path 8b on the downstream side has a negative pressure rather than the ventilation path 8a on the upstream side of the humidification filter 10. At this time, as shown in FIGS. 2 and 3, the water level stored in the water storage unit 13 rises on the downstream side of the humidifying filter 10. On the other hand, when the humidification operation is stopped, the pressure difference before and after the humidification filter becomes zero, so that the water level is the same before and after the humidification filter 10 as shown in FIG.

  Therefore, by disposing the upper end portion of the antibacterial component generating member 14 at a position that is above the water surface when the humidifying operation is stopped and below the water surface when the humidifying operation is stopped, the state of the upper end of the antibacterial component generating member 14 by the operation of the fan 9 Can be changed. In other words, the active species generating unit 12 is disposed so as to face the antibacterial component generating member 14, and during humidification operation, the antibacterial component generating member 14 in water is irradiated with ultraviolet rays to dissolve the active species in water, and the humidification operation is stopped. Sometimes, the active species can be released into the air by irradiating the antibacterial component generating member 14 in the air with ultraviolet rays.

  The antibacterial component generating member 14 only needs to contain a photocatalytic material that can generate active species in response to ultraviolet rays. Examples of the photocatalyst include titanium oxide, zinc oxide, and tungsten oxide. Silver, copper, zinc, etc. may be included.

  The humidification filter 10 can use what is generally used for humidification. Paper made of cellulose, etc. and woody material processed into corrugated shape, natural fiber such as silk, wool, cotton, hemp, etc., corrugated synthetic fiber such as rayon, acetate, triacetate, polyethylene, polypropylene, polyester, acrylic Etc. can be used.

  The humidifying filter 10 can absorb water from the lower end portion by capillary action. The humidifying filter 10 shown in FIGS. 2 and 3 has a fiber sheet folded into a pleat shape to ensure proper ventilation, and air flows so as to pass through the fiber sheet surface. The water sucked up from the lower end of the humidifying filter 10 spreads over the entire fiber sheet surface, and the humidifying filter 10 is moistened. When dry air passes through the gaps between the fiber sheets of the humidifying filter 10, water evaporates and the humidified air is discharged.

  Here, the humidifying filter 10 is required to have a function of quickly absorbing water and retaining more water. In the new humidification filter 10, the upstream and downstream states are the same. When the usage time of the humidifier becomes long, dirt in the air such as dust enters the ventilation path 8 from the suction port 3. The amount of dirt decreases from the upstream side in the order of 8a, 8b, and 8c. This is because the dirt in the air gradually decreases due to adhering to the humidifying filter 10, the resin surface of the ventilation path, the water storage section 13, and the like. When attention is paid to the humidifying filter 10, there is much dirt on the upstream surface on the side of the ventilation path 8a, and less dirt on the downstream surface on the side of the ventilation path 8b. In the conventional humidifier shown in FIG. 10, since the discharge unit 106 is installed on the upstream side, the active species generated from the discharge unit 106 contacts the contaminated upstream surface, passes through the humidification filter, and then flows downstream. Will reach the surface. As a result, the active species generated from the discharge unit are consumed in contact with dust and germs attached to the upstream portion of the humidifying filter 105, so that the amount reaching the downstream side is greatly reduced.

  The active species generator 12 of the present embodiment will be described in detail with reference to FIG.

  The active species generator 12 is provided between the humidifying filter 10 and the fan 9 in the ventilation path 8. The active species generation unit 12 generates a high voltage (-5 KV in this embodiment) between the discharge electrode 15, the counter electrode 16 disposed opposite to the discharge electrode 15, and the counter electrode 16 and the discharge electrode 15. A high voltage applying unit 17 to be applied, a Peltier element 18 arranged as a cooling unit for cooling the discharge electrode 15, and a radiation fin 19 for radiating heat of the Peltier element 18 are provided.

  The Peltier element 18 applies a voltage of about 0.75 V to 2.8 V. In this embodiment, the discharge electrode 15 side is set to a low temperature, and the radiation fin 19 side is set to a high temperature. By cooling the discharge electrode 15, moisture in the air is condensed on the discharge electrode 15, and activated species and ultraviolet rays are generated as charged fine particle water by applying a high voltage thereto.

  More specifically, the discharge electrode 15 includes a flat plate portion 20 having a flat plate shape and a substantially cylindrical column portion 21 extending in the vertical direction from the center portion of the flat plate portion 20. The counter electrode 16 is opposed to the distal end side of the cylindrical portion 21 of the discharge electrode 15 with a space. The counter electrode 16 includes an opening 22 in a part of a plane, and the opening 22 is provided so as to surround a downward extending axis of the cylindrical portion 21. There is a light-shielding wall extending upward and downward at the end of the opening 22 of the counter electrode 16, so that ultraviolet light generated near the tip of the cylindrical part 21 forming the discharge electrode 15 is not directly irradiated to the humidifying filter 10. Is shielded from light. The light shielding wall also exhibits a rectifying effect such that ion wind generated by discharge flows smoothly downward. When such an active species generating part 12 is arranged so that the opening 22 and the water storage part 13 of the counter electrode 16 are located on the extension axis of the discharge electrode 15, as shown by a one-dot broken line in FIG. The active species generated by the discharge along the flow is smoothly supplied toward the water in the water storage section 13, and the antibacterial component generating member 14 is also activated by directing ultraviolet rays to the antibacterial component generating member 14. Seeds can be generated to increase the total amount of active species and keep the water clean.

  Here, the operation of the active species generating unit 12 will be described.

  First, when the Peltier element 18 is energized, heat is transferred from the contact surface side of the discharge electrode 15 with the flat plate portion 20 to the heat radiation fin 19, and the discharge electrode 15 is cooled. As a result, the tip of the cylindrical portion 21 of the discharge electrode 15 is cooled, so that the air flowing into the tip of the cylindrical portion 21 is cooled, condensation occurs at the tip, and water is formed on the surface of the tip of the cylindrical portion 21. Is generated. Next, when a high voltage is applied between the discharge electrode 15 and the counter electrode 16 by the high voltage application unit 17, the tip of the cylindrical portion 21 of the discharge electrode 15 becomes a negative electrode, and the charge concentrates. A Coulomb force acts between the water on the surface and the counter electrode 16 to form a weight-like portion in which the water rises like a weight. When the electric charge is further concentrated on the tip of the spindle-shaped part, the charged fine particle water charged negatively is generated by repeating splitting and scattering exceeding the surface tension of water. The charged fine particle water flows down from the opening 22 to the ventilation path 8b and releases the active species to the ventilation path 8b.

  Air is ionized by the discharge, and ultraviolet rays are irradiated from the vicinity of the tip of the cylindrical portion 21 toward the periphery. However, the counter electrode 16 is provided with the opening 22 only in a part directed downward.

  Therefore, the ultraviolet rays are directly irradiated toward the water storage unit 13 and the antibacterial component generating member 14, and the humidifying filter 10 is not irradiated with the ultraviolet rays. The humidification filter 10 is generally used for humidification, and is made of cellulose or synthetic fiber. When these materials are irradiated with ultraviolet rays for a long time, discoloration or curing of the humidifying filter 10 occurs. In the configuration of the present invention, since the humidifying filter 10 is not directly exposed to ultraviolet rays, the appearance and flexibility of the humidifying filter 10 are hardly reduced, and the humidifying device can be used for a long time.

  When dust adheres to the discharge electrode 15 and the counter electrode 16 constituting the active species generating unit 12, a short circuit between the discharge electrode 15 and the counter electrode 16 or abnormal discharge occurs, and the active species are stably generated. I can't do that. Therefore, it is desirable to install the active species generating unit 12 at a position where dirt is hardly attached as much as possible.

  In the present invention, the active species generating unit 12 is located on the downstream side of the humidifying filter 10 in the ventilation path 8 b and above the upper end of the humidifying filter 10. When the operation of the fan 9 is stopped, the active species are filled in the air downstream of the humidifying filter 10 to decompose hydrophobic dirt and germs adhering to the surface of the humidifying filter 10, and the filter surface is further affected by the oxidizing power of the active species. By making it hydrophilic, sufficient water absorption is performed up to the upper portion of the humidifying filter 10 when the operation of the fan is resumed. This effectively decomposes hydrophobic dirt such as oil and carbon by bringing more active species into contact with the downstream side with less dirt rather than the upstream side of the humidifying filter where much dirt adheres. This is because the humidifying filter can be kept hydrophilic by the active species. Since water is sucked up by the capillary phenomenon on the downstream side of the humidified humidifying filter 10, the water containing the active species can be distributed throughout the humidifying filter 10, and the humidifying filter 10 can be kept clean.

  In addition, the air containing dust and oil sucked from the suction port 3 is removed from the upstream side of the humidifying filter 10, and the active species generating unit 12 is located above the humidifying filter 10. It is difficult for dust to adhere to the generating part 12, and abnormal discharge due to dust adhesion can be suppressed.

  Further, the active species generating unit 12 is provided on the downstream side of the humidifying filter 10 and above the upper end of the humidifying filter 10, and the air passage 8b surrounded by the humidifying filter 10 and the water storage unit 13 is heavier than air. By releasing the active species and ultraviolet rays, the active species can be filled in the space of the ventilation path 8b to increase the concentration, the humidifying filter 10 can be made hydrophilic efficiently, and further, antibacterial and antifungal effects can be exhibited. This utilizes the property that the active species is heavier than air in a state where the air blowing by the fan 9 is stopped. The air containing the active species that has become highly concentrated with time can exhibit hydrophobic soil degradation, hydrophilization of the humidifying filter 10 surface, and antibacterial and antifungal effects. Here, ozone, hydrogen peroxide, etc. are mentioned as active species by discharge. Since these active species are heavier than the average molecular weight of air, they tend to flow into the space below the active species generating unit 12. Further, as shown by the one-dot broken line in FIG. 2 and FIG. 3, the active species generation unit directs the direction of the ion wind downward, and on the extended axis of the discharge electrode 15, the opening 22 and the water storage unit 13 of the counter electrode 16. The active species can be further increased by allowing the antibacterial component generating member 14 to be directly irradiated with ultraviolet rays from the discharge. Moreover, the active species generation | occurrence | production part 12 is installed upwards rather than the humidification filter 10, The whole humidification filter can be hydrophilized and an antibacterial and antifungal effect can be exhibited.

  With these configurations, it is possible to suppress the discoloration and hardening of the humidifying filter, and to suppress the generation and proliferation of germs, and to obtain a humidifying device that can be used cleanly for a long time.

(Embodiment 2)
As an example of another humidifying filter according to Embodiment 1 of the present invention, FIG. 6 shows a perspective view of a humidifying filter made of a three-dimensional knitted fabric, and FIG. 7 shows a sectional view thereof. The humidifying filter 10 includes a plurality of ventilation holes, and includes two knitted fabrics arranged on the upstream side and the downstream side, and a plurality of connecting fibers that connect the two knitted fabrics with a gap therebetween, and the knitted fabric And a three-dimensional knitted fabric that holds water between the connecting fibers. When the humidifying filter 10 is viewed from the surface, a hexagonal shape in plan view is formed by the fibers constituting the knitted fabric, and the center is a space as a vent hole. In the humidifying filter 10, an upstream knitted fabric 23 and a downstream knitted fabric 24 each having a vent hole are configured by a three-dimensional knitted fabric formed by connecting connecting fibers 25 in which three or more fibers are bundled. The dry air to be humidified enters from the knitted fabric 23 on the upstream side of the three-dimensional knitted fabric, flows around the connecting fiber 25 and escapes from the knitted fabric 24 on the downstream side, and becomes humidified air. In addition, as the humidification filter 10, you may use knitted fabrics other than a solid knitted fabric, and a textile fabric. The humidifying filter is made of cellulose or other paper or wood material processed into a mesh shape, natural fibers such as silk, wool, cotton or hemp, and synthetic fibers such as rayon, acetate or triacetate in a plate-like shape. You may use what was made. In addition, the shape and thickness of the vent of the three-dimensional knitted fabric are not particularly limited.

  When dirt in the air adheres to the humidifying filter 10, large dirt and germs adhere to the upstream knitted fabric 23 as indicated by arrows in the schematic cross-sectional view of FIG. 7. The downstream knitted fabric 24 has a relatively small amount of dirt adhering, and when the humidification operation is stopped, the surface is hydrophilized by the action of the active species indicated by the one-dot broken line arrow. The knitted fabric 24 sucks up the water in which the active species is dissolved, and the water is guided toward the connecting fibers 25 arranged in the horizontal direction.

  In order to maintain the water absorption as the humidifying filter 10, it is not sufficient to make part of the fiber surface hydrophilic, and it is necessary to keep the entire surface of the knitted fabric that serves as the water guiding path of the humidifying filter hydrophilic. By bringing a relatively high concentration of active species into contact with one knitted fabric, the contact probability between the active species and the surface fibers constituting the knitted fabric is increased, and the area of the fibers that are hydrophilized by the active species is increased. Can do. The water in which the active species is dissolved is sucked up in the upper direction of the humidifying filter through the downstream knitted fabric 24 preferentially hydrophilized, and water is supplied to the connecting fiber 25 from the one hydrophilized knitted fabric. Continue to be. The dried air is humidified by flowing along the connecting fibers 25 sufficiently holding water. Even if the upstream knitted fabric 23 is not able to absorb water due to a decrease in capillary force due to dirt, water downstream of the active species is supplied from the downstream knitted fabric 24 toward the connecting fiber 25. Proliferation of germs and mold growth on the side knitted fabric 24 and connecting fiber 25 are suppressed, and a humidifier that can be used cleanly for a long time can be obtained.

(Embodiment 3)
Constituent elements similar to those in the first and second embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in FIG. 8, the humidifier includes a suction port 3 on the side surface of the main body case 2 and a blower outlet 4 on the top. In the ventilation path 8 which connects the suction inlet 3 and the blower outlet 4, the fan 9 as a ventilation means, the humidification filter 10 which consists of a solid knitted fabric, the humidification filter case 11 which stabilizes the shape of the humidification filter 10, and active species A generator 12 is provided. The humidifying filter 10 has a cylindrical shape that is open at the top and bottom, and the humidifying filter case 11 is provided with an opening. The dried air passes through the humidifying filter 10 from the outer peripheral portion, and is humidified upward from the inside of the cylindrical shape. The discharged air is discharged. The water storage unit 13 is provided with an antibacterial component generation member 14 at a position facing the active species generation unit 12, so that the antibacterial component and the antifungal component can be eluted in water. The lower portions of the tubular humidifying filter 10 and the humidifying filter case 11 are in contact with water, and the humidifying filter 10 is in a wet state due to capillary action. The dried air introduced from the suction port 3 is sent to the humidifying filter 10 wetted by the fan 9, and water is vaporized by the humidifying filter 10 so that the humidified air is discharged from the outlet 4. The arrows in the figure indicate the flow of wind when the fan 9 is operated.

  FIG. 9 shows only the humidifying filter 10 taken out. In the figure, only a part of the surface of the humidifying filter is shown in a hexagonal shape, but the end surfaces of the three-dimensional knitted fabric are joined to form a cylinder. . It arrange | positions in a humidifier so that the humidification filter case 11 for stabilizing a shape may contact | connect the cylindrical inner peripheral side. The inner peripheral part of the cylindrical humidification filter 10 forms a part of the ventilation path 8b. The active species heavier than the air released from the active species generating unit 12 is released toward the space surrounded by the water stored in the upper end of the cylindrical humidifying filter 10 and the water storage unit. By stopping the fan 9 and continuously operating the active species generating unit 12, the active species are accumulated in the space surrounded by the humidifying filter 10 and the water in the ventilation path 8b, and the concentration gradually increases. The high-concentration active species hydrophilizes the inner peripheral surface of the cylindrical humidifying filter 10 and decomposes hydrophobic dirt such as oil and carbon, thereby maintaining the water absorption performance of the humidifying filter 10 for a long period of time. Moreover, generation | occurrence | production and proliferation of various bacteria on the inner peripheral side surface of the cylindrical humidification filter 10 can be suppressed.

  When the fan 9 is switched from the stop to the operation, the active species stored at a high concentration passes through the fan 9 and is discharged from the outlet 4. At this time, the ventilation path 8 b is a hollow space between the humidifying filter 10 and the active species generating unit 12. On the other hand, the ventilation path 8c is a space between the active species generating unit 12 and the outlet 4 and houses a fan and a motor. Therefore, the space volume of the ventilation path 8b> the ventilation path 8c. By passing the high concentration active species through the ventilation path 8c, the active species comes into contact with the inside of the main body case forming the fan 9 and the ventilation path 8c, and the effect of keeping the ventilation path 8c cleaner is obtained. be able to.

  The humidifying device according to the present invention suppresses the adhesion of dust to the active species generating part and keeps the surface of the humidifying filter hydrophilic using the active species, so that water in which the active species is dissolved is applied to the humidifying filter. Since it can be used cleanly over a long period of time, it is useful as a humidifier used for home use or business use.

DESCRIPTION OF SYMBOLS 1 Humidifier 2 Main body case 3 Suction port 4 Air outlet 5 Operation part 6 Display part 7 Water tank 8 Ventilation path 8a Ventilation path 8b Ventilation path 8c Ventilation path 9 Fan 10 Humidification filter 11 Humidification filter case 12 Active species generation part 13 Water storage part DESCRIPTION OF SYMBOLS 14 Antibacterial component generating member 15 Discharge electrode 16 Counter electrode 17 High voltage application part 18 Peltier element 19 Radiation fin 20 Planar board part 21 Cylindrical part 22 Opening part 23 Upstream knitted fabric 24 Downstream knitted fabric 25 Connecting fiber 101 Suction port 102 Air outlet 103 Air blower 104 Water tank part 105 Humidification filter 106 Discharge unit

Claims (4)

A main body having an inlet and an outlet, a ventilation passage communicating the inlet and the outlet, a fan, a humidifying filter disposed upstream of the fan and humidifying air, and a reservoir for supplying water to the humidifying filter And an active species generating unit that generates active species by discharge between the humidifying filter and the fan in the ventilation path, wherein the active species generating unit is an upper end portion of the humidifying filter of the ventilation path A cylindrical discharge electrode to which a high voltage is applied, and a counter electrode having an opening in part facing the discharge electrode, the counter electrode including ultraviolet rays generated by discharge The humidification device is characterized in that an opening is formed so that the liquid is not directly applied to the humidification filter, and the opening of the counter electrode and the water storage are located on the extension axis of the discharge electrode.   A humidifier comprising a photocatalyst in a water tank, and ultraviolet rays generated by discharge are directly irradiated on the photocatalyst.   The humidifying device according to claim 2, wherein the water level is varied so that the photocatalyst is below the water surface during the humidifying operation and above the water surface when the humidifying operation is stopped.   A three-dimensional knitted fabric in which the humidifying filter includes two knitted fabrics having a plurality of ventilation holes and a plurality of connecting fibers that connect the two knitted fabrics with a space therebetween, and holds water between the knitted fabric and the connecting fibers. The humidifying device according to any one of claims 1 to 3, wherein the humidifying device is configured by.

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