JP2011158142A - Air cleaner and humidifier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air cleaner and a humidifier, which exert high sterilizing performance by irradiating even the clearance gap between fibers of a filter, with a sufficient amount of ultraviolet ray. <P>SOLUTION: In this air cleaner 1 including the endless belt-shaped filter 4 hung between an upper roller 4B and a lower roller 4C and rotated while being dipped in sterilizing liquid at its lower end, inside of a case body 1A having an air intake port 1B and a discharge port 1C, a sterilizing device 20 irradiating the filter 4 with the ultraviolet ray while facing an R-shaped part of the filter 4, is disposed near the part curved into an R-shape, of the filter 4 inside the case body 1A. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an air cleaning device and a humidifier, and particularly to an air cleaning device and a humidifier that can have a high sterilization function.

  Conventionally, as an air purifier for purifying indoor air, an air purifier equipped with a high-performance air purifying filter and collecting fine dust and odors in the air to purify the air has been widely used. Since the cleaner is equipped with a filter with a large pressure loss, it is difficult to process a large air volume, and it is necessary to replace the filter when the ventilation resistance increases due to clogging or the activated carbon is saturated and the odor adsorption performance deteriorates. There was a problem that humidification could not be performed unless a humidification mechanism was combined. A gas-liquid contact-type sterilization device configured to install a filter in an up-and-down direction in an immobile state as an air purification device that solves the problem, and soaks the electrolyte solution under the filter to suck up the electrolyte solution (VW) has been proposed and developed. However, with this type of product, if a filter is heavily soiled due to long-term operation or usage environment, the electrolyte solution that is immersed in the filter is soiled, and the sterilization action by the electrolyte solution cannot function sufficiently. There was a risk of occurrence.

Therefore, for example, the one described in Patent Document 1 is also known.
That is, as shown in FIGS. 4 and 5, this air purifier removes dust collected by the dust collection filter 102 that collects dust in the air flowing in from the air inlet 101 and the dust collection filter 102. The dust collection filter 102 is configured to be exposed to the indoor side and serve also as a cover for the air inlet 101. The dust collection filter 102 is provided with the rotation brush 103 and the suction nozzle 104. By automatically cleaning with the nozzle 104, in addition to automatically removing dust adhering to the dust collection filter 102, since there is no suction grill or the like at the air inlet 101, it is possible to save labor for cleaning. ing.

  Further, in this air purifying device, inside the cleaning unit cover 105, there are arranged a rotating brush 103 which is a sweeping means of the cleaning means, a suction nozzle 104 of the suction means, and an ultraviolet lamp 106 which is a light source. Has been. In addition, a reflective layer 107 that reflects light from the ultraviolet lamp 106 is provided on the inner wall of the cleaning unit cover 105. Therefore, by setting the ultraviolet lamp 106 to have an emission characteristic including ultraviolet light having a wavelength of around 254 nm, it is possible to perform sterilization by directly acting on bacteria. In addition, this air purifier is provided with a reflective layer 107 on the inner wall of the cleaning unit cover 105 and has a structure in which the rotating brush 103 and the suction nozzle 104 are integrated into the cleaning unit cover 105, thereby scattering dust. In addition, the reliability of the air cleaning device can be improved by preventing the leakage of ultraviolet rays into the air cleaning device and suppressing the deterioration of the resin parts and the like in the air cleaning device.

JP 2006-153289 A

  However, in the air cleaning device as described above, when passing through the vicinity of the ultraviolet lamp 106, the filter dust collection filter 102 in a flat state is irradiated with ultraviolet rays, so that the surface of the dust collection filter 102 is exclusively used. Just sterilize the part. That is, it is difficult to exert a sufficient sterilizing function for bacteria that have entered between the fibers of the dust collection filter 102.

  In view of the above-described circumstances, the present invention provides an air purifier and a humidifier that can exhibit a high sterilization effect by irradiating a sufficient amount of ultraviolet rays on a gap between fibers of a filter. It is intended.

To achieve the above objectives,
(1) The air cleaning device and the humidifier of the present invention are stretched between rollers in a state where the lower end is immersed in a sterilizing liquid inside a case body having an air suction port and a discharge port. An air purifier with a moving endless belt-like filter, and a humidifier,
A disinfection device for irradiating the filter with ultraviolet rays in a state of facing the R-shaped portion of the filter is provided near the R-shaped portion of the filter inside the case body. To do.

  According to this configuration, in the upper part of the filter curved in an R shape, the direction of the fibers constituting the filter rotates approximately 180 degrees together with the movement of the filter, and the movement direction is reversed. Along with this, the relative direction with respect to the sterilization apparatus varies greatly. As a result, the irradiation direction of the ultraviolet rays into the gap can also be changed relatively, so that not only the surface of the filter but also the gaps between the fibers constituting it can be irradiated with ultraviolet rays from various directions. become able to. Accordingly, a sufficient amount of ultraviolet rays can be irradiated evenly to every part such as the inside where the filter is not normally exposed, so that a high sterilization effect by the ultraviolet rays can be exhibited.

(2) Further, the air purifier and the humidifier of the present invention are provided inside the case main body having the air suction port and the discharge port.
An electrolysis unit that electrolyzes water containing chloride ions, such as tap water, into electrolyzed water;
A tray section for storing electrolyzed water;
An air element portion that is stretched between a pair of upper and lower rollers in a state in which an endless belt-like filter can be rotated to retain the electrolyzed water generated in the electrolysis portion and bring it into gas-liquid contact;
A fan part for blowing air that sends out air that has passed through the filter of the air element part;
A drive unit for rotating the filter of the air element unit;
A sterilization apparatus for irradiating the filter with ultraviolet light on the upper portion of the filter in the vicinity of the R-shaped portion, facing the R-shaped portion of the filter;
It is provided with.

  According to this structure, the electrolyzed water and air are brought into contact with each other at the air element portion, and air is sterilized and purified by the electrolyzed water. As in the case of the above (1), the upper portion of the filter curved in an R shape The direction of the fibers constituting the fiber rotates approximately 180 degrees together with the movement of the filter, and the movement direction is reversed. Accordingly, the relative direction of the gap between the fibers with respect to the sterilization apparatus varies greatly. As a result, the irradiation direction of the ultraviolet rays into the gap can also be changed relatively, so that not only the surface of the filter but also the gaps between the fibers constituting it can be irradiated with ultraviolet rays from various directions. become able to. Accordingly, a sufficient amount of ultraviolet rays can be irradiated evenly to every part such as the inside where the filter is not normally exposed, so that a high sterilization effect by the ultraviolet rays can be exhibited.

(3) Moreover, the air cleaning apparatus and humidifier of this invention are the air cleaning apparatus and humidifier of said (1) or (2),
The sterilization apparatus is above the rotation center position of the upper roller for supporting the endless belt constituting the filter by laying it on the upper side, and the required amount with respect to the surface portion curved in an R shape of the endless belt A light source that emits ultraviolet rays of
And a reflection mirror that reflects ultraviolet rays from the light source toward an R-shaped surface portion of the endless belt.

  According to this configuration, in addition to the effects described in (1) and (2) above, the filter can also irradiate the filter with ultraviolet rays reflected by the reflecting mirror. The effect can be expected.

(4) Moreover, the air cleaning apparatus and humidifier of this invention are the air cleaning apparatus and humidifier of said (1) or (2),
The light source is arranged to face the filter in a state of being directed toward the back of the case body.

  According to this configuration, in addition to the effects described in the above (1) or (2), when the case body is opened, it becomes possible to avoid trouble that ultraviolet rays are directly inserted into the eyes of the user. Increased safety.

(5) Moreover, the air cleaning apparatus and humidifier of this invention are the air cleaning apparatus and humidifier of said (3),
The roller has a function as a reflecting means whose surface portion reflects ultraviolet rays from the light source.

  According to this configuration, in addition to the effect described in the above (3), for the ultraviolet rays that have passed through the filter fiber gap and have not reached the filter, the reflection function by mirror finishing of the roller surface is utilized. Since effective reflection is performed, the reflected ultraviolet rays can irradiate the inner surface of the filter facing and contacting the roller. In this way, since each part on the back surface of the filter can be irradiated with ultraviolet rays, a higher sterilization effect due to the ultraviolet rays can be exhibited.

The air purifier and the humidifier according to the present invention are an endless belt that is stretched between rollers and rotated in a state where a lower end is immersed in a sterilizing liquid inside a case main body having an air suction port and a discharge port. An air purifier equipped with a filter in the form of a sterilizer that irradiates the filter with ultraviolet light in the state of facing the R-shaped portion of the filter in the vicinity of the R-shaped curved portion of the filter inside the case body Equipment.
Therefore, in the upper part of the filter curved in an R shape, the direction of the fibers constituting the filter rotates approximately 180 degrees together with the movement of the filter and the movement direction is reversed. The relative orientation with respect to the sterilizer varies greatly. As a result, the irradiation direction of the ultraviolet rays into the gap can also be changed relatively, so that not only the surface of the filter but also the gaps between the fibers constituting it can be irradiated with ultraviolet rays from various directions. become able to.
As a result, it is possible to irradiate a sufficient amount of ultraviolet rays evenly to every part such as the inside where the filter is not normally exposed, so that it is possible to exhibit a high sterilization effect by ultraviolet rays. There is.

It is a schematic diagram which shows the whole structure of the air purifying apparatus of this invention. It is a sectional side view of the air purifying apparatus of FIG. It is explanatory drawing which shows the effect | action of the principal part of the air purifying apparatus of this invention. It is a perspective view which shows the structure of the conventional air purifying apparatus. FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 shows an air purifying apparatus 1 according to the present invention. The air purifying apparatus 1 includes a case main body 1A, a front panel 2, a water supply tank 3, a filter 4 constituting an air element section, and a fan. The blower fan 5 constituting the part, the sterilizing electrode 6 constituting the electrolysis part, the tray 7 constituting the tray part, the tray 8, the light source 9, the air filter 10, and the drive part (not shown) are controlled. The main component which consists of the control part 11 etc. which are performed is provided. Further, in the present invention, a sterilization apparatus 20 using ultraviolet rays (UV) in particular is provided.

  In the air cleaning device 1 of the present embodiment configured as described above, the external air forcibly taken in by the blower fan 5 from the air suction port 1B is used as the sterilization liquid stored in the tray 7 (in this case) In this case, humidified air is formed by passing through a filter 4 whose lower part is immersed in a liquid in which HClO is generated), and the humidified air is discharged from the outlet 1C to the outside. In addition, although details will be described later, for example, in the case where the mold 4 does not have a long period of time, even if mold, bacteria, viruses, etc. adhere to the filter 4, the sterilizer 20 kills the mold, bacteria, viruses, etc. It can be made to.

As shown in FIG. 1, the case main body 1 </ b> A is roughly configured to include a water supply tank chamber S ₁ , a blower fan chamber S ₂ , a filter chamber S ₃ , an air filter chamber S ₄ , a control chamber S ₅ , and a light source chamber S. ₆ is provided. The case body 1A has a mesh-like air suction port 1B on the back surface and an air outlet 1C provided with a louver 1F on the upper surface, and an open port 1D for taking in and out the water supply tank 3 on the front surface (front surface). Furthermore, an operation panel 1E (see FIG. 2) is installed on the upper surface.

The water supply tank 3 is a liquid (water tap) containing chloride ions (Cl ⁻ ) in order to generate a liquid having a sterilization action by a chemical reaction by a sterilization electrode 6 to be described later, in this embodiment, hypochlorous acid HClO. Water). In the present embodiment, as shown in FIG. 1, a transparent tank interior in tap water in the water supply tank chamber S ₁ (or the like chlorination water) is accommodated.

The filter 4 is for humidifying to a predetermined humidity and generating sterilized air and sending it to the outside of the air cleaning device 1. An appropriate material (for example, a required fiber material is a relatively coarse mesh) is composed of an endless belt formed by Jo to those raised knitted), as shown in FIG. 1, in the filter chamber S _3, the Ekisara 7B in the vicinity of the tray 7 in the water tank 3 in the case body 1A It is installed in a state where the lower end is immersed in the stored disinfectant solution. As shown in FIG. 1, the filter 4 of the present embodiment is stretched between a pair of rollers 4B and 4C arranged above and below the filter unit 4A, and is physically connected to one of the rollers. At the same time, it is rotationally driven by a step motor (not shown) which is a drive means controlled by the control unit 11.

As shown in FIG. 1, the blower fan 5 forcibly sucks air that has passed through the filter 4, and sends this air to the outside from the outlet 1 </ b> C. It is installed in S _2.

  The sterilization electrode 6 is an electrolyte solution having a sterilization action from the water in the water supply tank 3 described above. For example, in order to generate hypochlorous acid (hereinafter referred to as a sterilization solution), the liquid in the tray 7 is used. It is immersed in the disinfectant stored in the dish 7B. The sanitizing electrode 6 of the present embodiment is installed in a pair of positive and negative electrodes in a suspended state from the lower part of the filter unit 4A that houses and holds the filter 4, and a part of the wiring Electrical connection to the control unit 11 side is achieved through the conductive metal 6A and the like.

Tray 7, as shown in FIG. 1, at the bottom of the case body 1A, it is installed from the water supply tank chamber S ₁ toward the bottom of the filter chamber S _3.

  In the liquid dish 7B, a sterilizing solution is generated and stored from tap water sent out from the water supply tank 3, and the lower region of the endless belt-like filter 4 that is driven to rotate at an appropriate timing is the sterilizing region. Always immersed in the liquid.

Pan 8 is disposed below the filter chamber S _3, usually, the filter when the filter chamber S ₃ in a state where the filter unit 4A is housed, as shown in FIG. 6, in a state of standing vertically It is accommodated in the chamber S _3.

As shown in FIG. 1, the air filter 10 purifies air before being taken in from the outside and passing through the filter 4, and is provided on the back side inside the case body 1 </ b> A facing the filter chamber S _3. It is arranged to face 1B.

  The control unit 11 is unitized (or modularized) in which various electronic components of an electric system that performs various controls are accommodated in a control box.

Next, each mechanism of the present invention will be briefly described.
In the air purifying apparatus of the present invention, when the power is turned on, the filter 4 and the fan 5 are rotated by driving means (not shown) by the operation of the control unit, so that the external air passes from the air suction port 1B on the back side to the inside of the case body 1A. And pass through the filter 4. That is, the air taken in from the outside is purified by the filter 4 when passing through the filter 4, and the purified air is sent out again from the top side air outlet 1 C to the outside of the case body 1 A by the fan 5. To go.
The filter 4 has an endless belt shape and is stretched between the upper and lower rollers 4B and 4C in a tensioned state and rotated at an appropriate timing, so that the filter 4 is sequentially immersed in the sterilization liquid in the liquid dish 7B. Thus, the filter 4 is sterilized.

Next, the configuration of the sterilization apparatus 20 that is a characteristic component of the present invention will be described.
FIG. 3 shows a sterilization apparatus 20, which is close to an R-shaped upper part of the filter 4 (hereinafter referred to as “R part”) and faces this R part. Thus, the filter 4 is irradiated with ultraviolet rays. The sterilization apparatus 20 of the present embodiment includes a light source 21 and a reflection mirror 22, and uses ultraviolet rays, which is different from a sterilization mechanism using a sterilization liquid (HClO) stored in the liquid dish 7 </ b> B of the tray 7. Kill fungi and influenza viruses with the sterilization mechanism.

  The light source 21 is at least a position above the rotation center position O of the upper roller 4B that supports and supports the endless belt constituting the filter 4 on the upper side, and is an R portion (curved in an R shape) above the endless belt. The surface portion is irradiated with a required amount of ultraviolet light, and is composed of an ultraviolet irradiation lamp that emits a required short wavelength. The light source 21 for irradiating the ultraviolet rays is not limited to the ultraviolet irradiation lamp, and for example, an LED that emits ultraviolet rays having a required wavelength (for example, about 250 nm) may be used. In this case, since the directivity is stronger than that of the ultraviolet irradiation lamp, for example, it is preferable to install a plurality of them in parallel with the width (Y) direction of the filter 4.

The operation of the light source 21 is controlled by timer control by the control unit. For example, the light source 21 is lit in conjunction with the driving operation of the step motor that rotationally drives the filter 4 or at an appropriate timing within the time during the step motor operation. The filter 4 can be operated so as to sequentially irradiate the filter 4 with a required amount of ultraviolet light. Thereby, especially sufficient ultraviolet irradiation is performed to the clearance gap between the fibers which comprise the filter 4, As a result, high sterilization effect | action can be exhibited now.
In consideration of safety, the light source 21 is disposed opposite to the filter 4 in a state of being directed in the back (−X) direction of the case body 1A, so that dangerous ultraviolet rays are directed to the outside of the case body 1A. Emission is avoided.

The reflection mirror 22 makes the ultraviolet light from the light source 21 enter and reflects it toward the surface portion of the R portion (curved in an R shape) of the endless belt constituting the filter 4 and the vicinity thereof. 4 is irradiated with ultraviolet rays for a sufficient time until it reaches a portion on the side opposite to the one surface where the light source 41 is installed.
The reflecting mirror 22 of the present embodiment has a suitable mirror-finished material (for example, mirror-finished aluminum) curved in a concave shape toward the light source 21, but the reflected ultraviolet rays here are effective for the R portion. It is more effective if it is formed into a unique shape in accordance with an optimal function shape so that it is irradiated.

  In the sterilization apparatus 20 of the present embodiment, the surface 23 of the upper roller 4B is also mirror-finished to add a function as a reflecting means, and the ultraviolet rays from the light source 41 are used as the fibers of the filter 4. Even when it has passed through the gap, it is possible to irradiate ultraviolet rays not only on the outer surface of the filter 4 but also on the inner surface facing the upper roller 4B by reflecting it.

  In the present embodiment, an appropriate anticorrosive film that transmits ultraviolet rays is mirror-finished to prevent corrosion such as rust from occurring for a long time on the reflecting mirror 42 and the upper roller 4B. It may be configured to form a film on the surface.

Next, the operation of the sterilization apparatus 20 of this embodiment will be described.
A step motor (not shown) is rotationally driven by drive control by the control unit 11, and the upper roller 4B connected to the motor is forcibly rotated, so that the filter 4 installed between the upper roller 4B and the lower roller 4C is in a predetermined direction. Is rotated. In other words, in the present embodiment, the control unit 11 controls the filter 4 that rotates counterclockwise in FIG. 1, and the sterilization apparatus 20 is at least required for the time required for the rotation operation of the filter 4. Operate. That is, when the filter 4 is rotated by a predetermined number of rotations, the sterilization apparatus 20 operates and the light source 21 is turned on in accordance with the rotation operation. Irradiation toward the filter 4 from the vicinity of the roller 4B.

  As a result, as shown in FIG. 3, most of the ultraviolet rays are directly applied to the curved portion R of the filter 4, while most of the remaining ultraviolet rays that are not directly applied are incident on the reflection mirror 22. After being reflected, it goes again to the R portion of the filter 4. Therefore, most of the ultraviolet light emitted from the light source 21 is directly or indirectly irradiated onto the filter 4.

  By the way, in the R portion curved in the R shape of the filter 4 provided in the vicinity, the direction of the fibers constituting the filter 4 rotates approximately 180 degrees together with the movement operation of the filter 4, The direction with respect to the disinfection apparatus 20 also fluctuates greatly with the fibers and the gaps between them. As a result, it is possible to change the irradiation direction of the ultraviolet rays to the portion facing the gap on the outer peripheral surface of the fiber. Accordingly, not only the surface of the filter 4 but also the fibers constituting the filter 4 are not exposed to the outside in a flat state and are usually difficult to see from the outside, and the outer surface portion of the intermediate portion in the thickness direction facing the gap between the fibers However, it becomes possible to irradiate ultraviolet rays from various directions.

  Further, the ultraviolet rays that cannot reach the filter 4 because they have passed between the fibers (gap) of the filter are also effectively reflected by using the reflection function by the mirror finishing provided on the surface of the upper rotor 4B. Therefore, the reflected ultraviolet rays can be applied to the inner surface of the filter 4 that faces and contacts the upper rotor 4B. In this way, each part of the front and back surfaces of the filter 4 can be uniformly irradiated with a sufficient amount of ultraviolet rays, so that a high sterilization effect by the ultraviolet rays can be exhibited.

  Therefore, according to the present embodiment, in addition to the sterilization action by the sterilization liquid (HClO) stored in the liquid dish 7B of the tray 7, the filter is sterilized using ultraviolet rays completely different from the sterilization mechanism by the sterilization liquid. Molds, bacteria, influenza viruses, etc. attached to 4 can be killed.

  In particular, the sterilizing action of the sterilizing solution (HClO) stored in the liquid dish 7B of the tray 7 is a case where the indoor air is very dirty, and after much of the dirt adheres to the filter 4 When moved to the sterilizing solution in the liquid dish 7B, the sterilizing solution (HClO) reacts to the dirt before it exhibits the sterilizing effect against mold, bacteria and viruses. It tends to be unable to demonstrate the sterilizing effect. Even in such a case, according to the present embodiment, by utilizing the characteristic that ultraviolet rays are resistant to dirt, it is possible to eliminate bacteria, viruses, and fungi that cannot be sterilized by a sterilizing solution (HClO). The sterilization effect can be exhibited effectively.

  In addition, according to the present embodiment, as described above, the ultraviolet irradiation portion is the R portion where the gap between the fibers of the filter 4 is widened, so that sufficient ultraviolet irradiation can be performed up to the gap between the fibers. Therefore, the sterilization action by ultraviolet rays can be effectively enhanced.

  Furthermore, according to the present embodiment, since the sterilization apparatus 20 is arranged toward the back of the case body 1A, for example, when it is inspecting and repairing, even if an attempt is made to look inside the case body 1A from the outside, there is no ultraviolet light. Is not directly incident on the eyes, and safety measures are sufficiently secured.

  In addition, according to the air cleaning device of the present embodiment, the filter 4 also has a function of humidifying with moisture contained in the sterilization solution, so that air passing through the filter 4 is humidified, for example, an influenza virus that is weak in humidity, etc. It can be made to function effectively as a countermeasure for the above.

  In addition, this invention is not limited to said embodiment, In the range which does not deviate from the summary, it can implement with a various form. Therefore, it goes without saying that the present invention can be applied to a humidifier equipped with an air cleaning device, and also to a humidifier.

  That is, in the present embodiment, as a liquid for sterilization, a chloride ion contained in tap water is used, and hypochlorous acid (sanitized liquid) is generated by an electrical chemical reaction using an electrode. However, the present invention is not particularly limited to this. That is, the air purifying apparatus of the present invention is configured as an air purifying apparatus that removes harmful chemical substances and odorous substances such as formaldehyde, toluene, and VOC (Volatile Organic Compound), that is, has a chemical substance removing function. In that case, it is also possible to use as an air purifying device having a deodorizing function by using a chemical solution containing an appropriate component having an adsorptive property such as functional water having alkalinity such as sodium hydroxide solution or activated carbon. .

  Since the air cleaning device of the present invention can exhibit a high sterilizing action by ultraviolet rays, for example, the sterilizing liquid in which the lower end of the endless belt-like filter is immersed with extreme long-term non-use is extremely Even when the sterilization effect is reduced due to contamination, it is possible to effectively irradiate the gaps between the filters with ultraviolet rays with different sterilization mechanisms. Is possible and convenient.

DESCRIPTION OF SYMBOLS 1 Air purifier 1A Case main body 1B Air inlet 1C Air outlet 1D Opening port 2 Front panel 3 Water supply tank 4 Filter 4A Filter unit 4B (Upper) roller 4C (Lower) roller 5 Blower fan 6 Disinfection electrode 7 Tray 7B Liquid Dish 8 Receptacle 9 Light source (LED)
DESCRIPTION OF SYMBOLS 10 Air filter 11 Control part 20 Sterilization apparatus 21 Light source (ultraviolet irradiation lamp)
22 Reflecting mirror 23 Upper roller surface (reflecting means)

Claims (6)

This is an air purifier equipped with an endless belt-like filter that is stretched and rotated between rollers in a state where the lower end is immersed in a sterilizing liquid inside the case body having an air suction port and a discharge port. And
A disinfection device for irradiating the filter with ultraviolet rays in a state of facing the R-shaped portion of the filter is provided in the vicinity of the R-shaped curved portion of the filter inside the case body. Air cleaning device. Inside the case body with air inlet and outlet,
An electrolysis unit that electrolyzes water containing chloride ions, such as tap water, into electrolyzed water;
A tray section for storing electrolyzed water;
An air element portion that is stretched between a pair of upper and lower rollers in a state in which an endless belt-like filter can be rotated to retain the electrolyzed water generated in the electrolysis portion and bring it into gas-liquid contact;
A fan part for blowing air that sends out air that has passed through the filter of the air element part;
A drive unit for rotating the filter of the air element unit;
A sterilization apparatus for irradiating the filter with ultraviolet light on the upper portion of the filter in the vicinity of the R-shaped portion, facing the R-shaped portion of the filter;
An air cleaning device comprising: The sterilization apparatus is
A light source that irradiates a surface portion of the endless belt that is curved in the shape of R with a required amount of ultraviolet light that is above the rotational center position of the upper roller that supports the endless belt constituting the filter. When,
A reflection mirror that reflects the ultraviolet rays from the light source toward the curved surface portion of the endless belt;
The air purifier according to claim 1 or 2, further comprising:   The air purifier according to claim 1 or 2, wherein the light source is disposed to face the filter in a state of being directed toward the back of the case body.   The air cleaning device according to claim 3, wherein the roller has a function as a reflection unit whose surface portion reflects ultraviolet rays from the light source.   A humidifier comprising any one of the air purification devices according to claim 1.

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