JP2000060947A - Air purifier - Google Patents

Abstract

(57) [Summary] Conventionally, an air cleaning device using a photocatalyst has a built-in lamp serving as a light source, and the photocatalyst is excited only by the light. In an air purifying apparatus, a casing is mounted on a rear tray of a passenger car for use in a vehicle. A window 20 through which sunlight passes is provided on the upper surface 27 of the casing 2. The photocatalyst carrier 5 is held in the casing 2 at the back of the window 20. The sunlight coming from the rear window of the car
To excite the photocatalyst to obtain its purifying action. Window 2
0 is also used as the slit 9 of the outlet 12. The slit 9 blows out air obliquely rearward and upward, and can introduce sunlight from obliquely rearward and upward. A light source 6 for irradiating the photocatalyst carrier 5 with light is also incorporated. [Effect] The sunlight can be effectively used, and a high purification ability can be obtained.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an air cleaning device using a photocatalyst.

[0002]

2. Description of the Related Art This air purifying apparatus is generally provided with a photocatalyst carrier for carrying a photocatalyst which decomposes pollutants such as odorous components upon irradiation with light including ultraviolet rays. It has a light source lamp for emitting light and a casing for housing these. Since the light emitted from the light source lamp contains ultraviolet rays, the light is prevented from leaking from the inside of the casing to the outside, and the photocatalyst is excited only by the light from the light source lamp.

By the way, when the air purifying device is a vehicle-mounted type, in particular, a device installed in the vehicle compartment is likely to receive sunlight coming in through the window of the vehicle. Therefore, an object of the present invention is to provide an air cleaning device that can effectively utilize sunlight so that a purifying action can be obtained by a photocatalyst.

[0004]

In order to achieve this object, the air purifying apparatus according to the first aspect of the present invention purifies pollutants in the air flow by irradiating the air passage in the casing with light. In the air purifying device in which the photocatalyst carrier carrying the photocatalyst is arranged, the casing is installed in the passenger compartment of the automobile, has a window through which sunlight passes, and the photocatalyst carrier is , Is located behind the window so that it can be exposed to sunlight through the window.

According to this structure, since the photocatalyst carrier can be irradiated with the sunlight through the window, it is possible to effectively utilize the sunlight to obtain the purifying action of the photocatalyst. Here, the window may be any portion that allows light to pass therethrough, and may be provided with a translucent member or may be provided with an opening. Further, the back of the window is a position within the casing where the sunlight passing through the window can reach.

The air purifying apparatus according to the second aspect of the invention is
The air cleaning apparatus according to claim 1, wherein the casing is arranged on a rear tray of an automobile. According to this configuration, in addition to the effect of the invention described in claim 1, since the rear tray of the automobile is generally susceptible to sunlight through the rear window of the automobile, this sunlight can be effectively utilized by the air cleaning device. easy.

Here, the rear tray is a general rear tray which is a rack for small luggage behind the upper part of the rear seat of a sedan type passenger car, and a baggage behind the rear seat of a wagon type passenger car. It also includes a tonneau cover type rear tray that is a removable cover that covers the storage part. According to a third aspect of the present invention, there is provided the air purifying device according to the second aspect, wherein the window also serves as an air outlet for blowing air.

According to this structure, in addition to the function of the invention described in claim 2, the window need not be provided separately from the air outlet, and the air outlet is usually provided in the air cleaning device.
The configuration can be simplified. Further, since the window that also serves as the air outlet can pass sunlight as it is, the sunlight can be used more effectively.

The air purifying device according to the invention of claim 4 is
The air purifying apparatus according to claim 3, wherein the air outlet includes a plurality of slits that blow out the air flow rearward with respect to the traveling direction of the vehicle rather than directly above.
According to this configuration, in addition to the effect of the invention described in claim 3, since the slit can also serve as the window, it is easy to irradiate the photocatalyst carrier with sunlight incident from the rear of the automobile. Moreover, since the backward airflow from the air outlet cannot be directly blown to the person sitting in the seat of the automobile, a draft feeling can be prevented.

An air purifying device according to a fifth aspect of the invention is
The air purifying apparatus according to claim 3, wherein the air outlet includes a plurality of slits that blow the air flow upward. According to this configuration, in addition to the effect of the invention described in claim 3, since the slit also serves as the window, it is easy to irradiate the photocatalyst carrier with sunlight incident from above the automobile.

An air purifying device according to the invention of claim 6 is
The air purification apparatus according to any one of claims 1 to 5, further comprising a light source for irradiating the photocatalyst carrier with light. According to this configuration, in addition to the action of the invention according to any one of claims 1 to 5, even when sunlight is difficult to obtain, the light of the light source irradiates the photocatalyst carrier to obtain a purifying action. To be

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION An air purifying apparatus according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings. Figure 1
It is explanatory drawing which shows the use condition of the air purifying apparatus of one embodiment of this invention, and the motor vehicle is also illustrated. 2 is shown in FIG.
It is a side sectional view of a schematic configuration of the air cleaning device.

The air purifying apparatus 1 is of a vehicle type, and its casing 2 is installed in the passenger compartment of an automobile. For example, the air cleaning device 1 is installed behind the rear seat 90 of the passenger car C while being mounted on the rear tray 91. Further, as described later, the airflow from the outlet 12 is arranged so as to face rearward (arrow F4). Here, as the installation location, in addition to the rear tray 91 which is a rack for small luggage behind the upper portion of the rear seat 90 of a sedan type passenger car or the like, a baggage storage portion behind the rear seat of the wagon type passenger car or the like is provided. It may be on a tonneau cover type rear tray that is a removable cover that covers the. Further, at least a part of the air cleaning device 1 may be dropped and installed in the opening or the recess formed in the rear tray.

The air purifying apparatus 1 according to the present invention includes a casing 2 for partitioning an air passage F through which air flows, and a contamination in an air flow flowing through the air passage F upon receiving irradiation of light including ultraviolet rays in the casing 2. And a photocatalyst carrier 5 carrying a photocatalyst for purifying substances. The photocatalyst carrier 5 is arranged in the air passage described above. The casing 2 of the air purifying apparatus 1 of the present invention includes a window 20 through which sunlight passes. Then, the photocatalyst carrier 5 is arranged at the back of the window 20 so as to receive the irradiation of sunlight through the window 20. For example, the photocatalyst carrier 5 is arranged in the casing 2 in the vicinity of the window 20 so that the photocatalyst carrier 5 can receive direct sunlight through the window 20. As described above, since the photocatalyst carrier 5 can be irradiated with the sunlight through the window 20, it is possible to effectively utilize the sunlight and obtain a photocatalyst purification action.

The details will be described below. FIG. 3 is a front sectional view of the air cleaning device 1 of FIG. FIG. 4 is a cross-sectional plan view of the air cleaning device 1 of FIG. In the following description, the direction will be described based on the state when the air purification device 1 is installed in the vehicle. That is, the traveling direction of the automobile (arrow Y direction) is the front-rear direction, and the left-right direction (arrow X direction) and the vertical direction (arrow Z direction) with respect to the traveling direction of the automobile are used as they are.

As shown in FIG. 3, the present air cleaning apparatus 1 has
In addition to the casing 2 and the photocatalyst carrier 5 described above,
A light source 6 that irradiates the photocatalyst carrier 5 with light, and a blower fan 41 including a sirocco fan that generates an air flow in the air passage.
And a dust collection filter 3 that captures dust in the air flowing through the air passage. Further, a circuit board 7 including a drive circuit for causing the light source 6 to emit light is provided, which is configured to be supplied with electric power from a battery of an automobile through a cigar socket 71, for example.

As shown in FIG. 2, the casing 2 is a hollow box formed in a substantially rectangular parallelepiped shape, and is thinly formed in the vertical direction. Further, the casing 2 has a planar shape with the left-right direction as the longitudinal direction, as shown in FIG. When the casing 2 is installed in the vehicle, the above-described longitudinal direction (arrow X) is installed along the left-right direction of the vehicle.

As shown in FIG. 2, the upper surface 27 of the casing 2 is formed in a bent shape by a front half portion which is a horizontal surface and a rear half portion which is inclined rearward. Accordingly, the upper surface 27 and the rear window glass 93 of the automobile can be prevented from colliding with each other, so that the air cleaning device 1 can be easily installed on the rear tray 91 when the rear window glass 93 is largely inclined.

Inside the casing 2, there is a first area (arrow F shown on the right side of FIG. 3) extending downward from the suction port 11.
1) and a lower part of this first area and a second opening that communicates with each other at the communication opening 28a and extends vertically.
An area (a region where an air flow indicated by an arrow F2 illustrated on the left side of FIG. 3 flows) is partitioned. The above-mentioned air passage is divided by the first area and the second area. Suction port 1
Directly below 1 is a dust collecting filter 3 and below it is a blower fan 4
1 is arranged, and the photocatalyst carrier 5 and the light source 6 are arranged above the second area. The window 20 described above is provided at the upper end of the second area. The window 20 also serves as the air outlet 12 that blows air from the air passage.

The window 20 comprises a plurality of slits 9 formed in the upper surface 27 of the casing 2, as shown in FIG.
Sunlight can be introduced into the casing 2 through these slits 9. The air outlet 12 is composed of the plurality of slits 9 described above. These slits 9 can blow the airflow obliquely upward and rearward with respect to the traveling direction of the vehicle when the air cleaning device 1 is installed in the vehicle as described above.

The slits 9 all function as the window 20 and also as the air outlet 12. Slit 9
Is a rectangular opening long in the longitudinal direction of the casing 2,
A wind direction regulating member 8 is provided on the peripheral edge thereof. The wind direction restricting member 8 is formed of a parallel flat plate that is cut and raised so that a front portion thereof is lowered in a state of being connected to a part of a rear side peripheral edge of the slit 9, and is integrally formed with an upper surface 27 of the casing 2. . The wind direction restricting members 8 are provided in parallel with each other and are inclined at a predetermined angle D with respect to the horizontal plane HL.
As a result, the wind direction restricting member 8 encourages the airflow that is about to flow out of the slit 9 to flow backward.

Here, the predetermined angle is set to an angle at which sunlight can be easily introduced. For example, since the sunlight enters from the rear window, the predetermined angle is set such that the wind direction regulating member 8 faces the rear window of the automobile. The predetermined angle is
It can be determined according to the position where the air cleaning device 1 is installed and the position and size of the rear window of the automobile, and may be 0 degrees to 90 degrees. If the rear window is large and covers a large area above the rear tray, the predetermined angle can be set to 45 to 90 degrees. Further, when the rear window is right behind like a wagon type automobile, it is possible to set the predetermined angle to 0 to 30 degrees. Further, during the daytime, the sun is diagonally above the automobile, so it is preferable to set it upward, and it is particularly preferable to set the predetermined angle to 45 to 75 degrees.

The wind direction regulating member 8 may have a surface that reflects light. In this case, season, time of day,
Even if the wind direction regulating member 8 may interfere with the sunlight when it is assumed that the incident direction R of the sunlight is slightly different depending on the state of the vehicle or the installation condition of the air cleaning device 1, Is reflected on the surface of the wind direction regulating member 8 and can reach the inside of the casing 2.

Thus, the sunlight can be introduced into the casing 2 and reach the photocatalyst carrier 5 while passing through the slit 9 as it is or reflected on the surface of the wind direction regulating member 8. The photocatalyst carrier 5 is formed in a plate shape, and a pair of the photocatalyst carriers 5 are arranged so as to face each other. The pair of photocatalyst carriers 5 are vertically arranged with their plate surfaces horizontal. Also, sandwiched between a pair of photocatalyst carrier 5,
The above-mentioned light source 6 is arranged.

The photocatalyst carrier 5 comprises a photocatalyst and a carrier carrying the photocatalyst. This carrier is composed of, for example, a honeycomb structure. This honeycomb structure has a ventilation surface 5a serving as a surface and a large number of parallel ventilation holes extending in a direction intersecting with the ventilation surface 5a. The ventilation surface 5a of the photocatalyst carrier 5 extends horizontally and is arranged so as to intersect the flow direction of the air flow. At this time, the photocatalyst carrier 5
Vents extend vertically.

Further, the ventilation surface 5a (upper surface) of the photocatalyst carrier 5 on the window 20 side and the incident direction R of sunlight are arranged so as to intersect with each other. In addition, it is the direction in which the vent holes of the photocatalyst carrier 5 extend and the direction of the air flow (see arrow F2).
And the incident direction intersect with each other. As a result, sunlight can enter the photocatalyst carrier 5 to illuminate it.

The honeycomb structure includes, for example, a large number of parallel flat plates made of vinyl chloride resin and corrugated plates arranged between adjacent flat plates. The honeycomb structure is formed by alternately laminating a large number of flat plates and corrugated plates into a plate shape having a front surface and a back surface extending in the stacking direction, and has a large number of vent holes opening on the front surface and the back surface. . On the surface or inside of these flat and corrugated plates, light,
In particular, it carries a photocatalyst that decomposes odorous components upon irradiation with ultraviolet rays.

The photocatalyst means a substance which absorbs light and gives its energy to a reaction substance to cause a chemical reaction.
The main functions of this photocatalyst are the deodorizing function by removing odorous components, the function of decomposing pollutants that are not odorous components, the function of sterilizing microorganisms and inactivating viruses (so-called sterilization, antibacterial function), etc. However, all of these functions are achieved by the oxidative decomposition function of the photocatalyst.

Here, as a photocatalyst having an oxidative decomposition function, titanium oxide (Ti) having an anatase type crystal structure is used.
O ₂ ) can be exemplified. Titanium oxide having this anatase type crystal structure is preferable because it can exhibit a high purification ability even with weak light. In addition, zinc oxide (Zn
O) and tungsten oxide (WO ₃ ) may be used.

The light source 6 is, for example, a straight tube type cold cathode fluorescent lamp. The light source 6 has a wavelength of 320 to 420 n, in particular.
m, which can emit light including ultraviolet light, TiO ₂ , Z
A photocatalyst such as nO can be activated to efficiently purify pollutants. In particular, the cold cathode fluorescent lamp is preferable because it is generally smaller and has a longer life than the hot cathode fluorescent lamp.

A plurality of, for example, two light sources 6 are provided, and cooperate with each other to illuminate substantially the entire surface of one side of the pair of photocatalyst carrier 5. The photocatalyst carrier 5
The light source 6 is not limited to the above configuration. For example, the photocatalyst carrier 5 may be a corrugated plate or may be a fiber such as a polyester non-woven fabric coated with a photocatalyst. The point is that the photocatalyst is supported.
The light source 6 may be any one that can emit light that can excite the photocatalyst, and one that can irradiate ultraviolet rays is particularly preferable in order to improve purification efficiency.

In the air purifying apparatus 1, when the blower fan 41 is rotationally driven by the fan motor 42, air is sucked downward from the suction port 11. The air passes downward through the dust collecting filter 3 (arrow F in the first area of the air passage).
1) From the inside of the fan casing 43 to the second area through the communication opening 28a (arrow F3), flow upward in the second area, pass through the photocatalyst carrier 5, and be purified by the photocatalyst (arrow F2). , Is blown out from the outlet 12 (arrow F4).

In the meantime, the two light sources 6 illuminate the lower surface of the upper photocatalyst carrier 5 and the upper surface of the lower photocatalyst carrier 5, and efficiently utilize the light irradiated to the entire circumference of the light source 6. do it,
Excite the photocatalyst. Further, when the vehicle is outdoors during the daytime, sunlight is inserted into the vehicle from diagonally above and from right above to right behind through the rear window of the vehicle. The sunlight reaches the inside of the casing 2 through the slit 9 of the window 20 and illuminates the upper surface of the upper photocatalyst carrier 5. As a result, the photocatalyst is also excited by sunlight. Also,
When the sunlight passes through the upper photocatalyst carrier 5, it illuminates the upper surface of the lower photocatalyst carrier 5 and also excites the photocatalyst there.

In this way, the photocatalysts of the pair of photocatalyst carrier 5 are activated by receiving sunlight and light from the light source 6, mainly ultraviolet rays, to purify pollutants such as odorous components. In addition to the sunlight, the window 20 that allows sunlight to pass also allows the light from the illumination in the building to pass. In this way, the purifying action by the photocatalyst can be obtained by utilizing the external light.

As described above, according to the present embodiment, since the photocatalyst carrier 5 can be irradiated with the sunlight through the window 20, it is possible to effectively utilize the sunlight to obtain a photocatalyst purifying action. Therefore, the light of the light source 6 and the sunlight can be used at the same time to obtain the air cleaning device 1 having a high purification capacity. Alternatively, when illuminated by sunlight, the light source 6
It is also possible to reduce the energy consumption while reducing the light and stopping the light emission to obtain a purifying effect. Or
Since a high purification capacity can be obtained, the photocatalyst carrier 5 and the light source 6 can be downsized so as to meet the required purification capacity.

Here, the window 20 may be any portion of the casing 2 that allows light to pass through, and may be provided with a transparent member such as a transparent resin material or glass, or the slit 9 described above. Such an opening may be opened. Further, since the rear tray 91 of the automobile is generally apt to receive sunlight through the rear window 20 of the automobile, the casing 2 arranged in the rear tray 91 of the automobile can easily utilize the sunlight effectively by the air cleaning device 1. .

The window 20 also serves as the air outlet 12. As a result, the window 20 does not have to be provided separately from the air outlet 12, and the air outlet 12 is usually provided in the air cleaning device 1, so that the configuration can be simplified. Further, the window 20 which is also used as the air outlet 12 allows the sunlight to pass therethrough as it is, so that the sunlight can be used more effectively. Here, at least a part of the window 20 and the outlet 12 may be shared.

Further, the air outlet 12 includes a plurality of slits 9 for blowing out the air flow rearward with respect to the traveling direction of the automobile, and since the slits 9 can also be used as the windows 20, the sunlight incident from the rear of the automobile is introduced. It is easy to irradiate the photocatalyst carrier 5. Moreover, when the air conditioner 1 is installed in the vehicle, for example, on the rear tray, the airflow from the outlet 12 is not directly blown to the back of the head of the person sitting in the rear seat 90, and a draft feeling is prevented. It is possible to obtain the comfortable air purifying device 1. Here, the blowout direction of the blowout port 12 that can obtain this effect may be backward with respect to the traveling direction of the vehicle rather than directly above.

In particular, the air outlet 12 includes a plurality of slits 9 for blowing the airflow obliquely upward and rearward.
When the window 20 is also used as the window 20, the sunlight is normally incident from a diagonally upper rear side of the automobile, and thus the window 20 described above makes it easy to introduce the sunlight. Further, since the present air cleaning apparatus 1 is provided with the light source 6, the photocatalyst carrier 5 can be exposed to the light of the light source 6 even when sunlight cannot be obtained such as at night.
Can be irradiated to obtain a purifying action.

Further, since the pair of photocatalyst carriers 5 are arranged so that the sunlight can reach the photocatalyst carrier 5 on the lower side after illuminating the photocatalyst carrier 5 on the upper side, The light can be used more efficiently. Further, since the light source 6 is generally a cold cathode tube having a small diameter, it is less likely to get in the way even when it is arranged in the middle of the optical path through which the sunlight passes, and the light from the light source 6 and the sunlight are from the same direction. This is convenient when illuminating the photocatalyst carrier 5.

The light source 6 may be omitted. In this case, the configuration can be simplified. In addition, the slit 9 of the outlet 12 may blow out the airflow upward. For example, if the above-described wind direction regulating member 8 is omitted, the air flow from the slit 9 is blown directly upward. In this way, when the plurality of slits 9 that blow the air flow upward are also used as the window 20, it is easy to irradiate the photocatalyst carrier 5 with strong sunlight that is incident from above the automobile.

Further, the air outlet 12 may not have the wind direction regulating member 8. Also in this case, the outlet 12 and the window 2
It can be combined with 0. In addition, the outlet 12 and the window 2
0 is not limited to the upper surface 27, and may be provided on the rear surface or the side surface of the casing 2, for example. Further, although the window 20 is also used as the air outlet 12, it is not limited to this. For example, when a photocatalyst is supported on the dust collecting filter 3,
It is conceivable that the window 20 and the suction port 11 are shared.

Further, in the above-described embodiment, the air cleaning device 1 has the blower fan 41 in the casing 2, but the present invention is not limited to this. For example, the photocatalyst carrier 5 may be provided in the casing 2, and a separately provided blower fan or the like may be combined to allow air to flow in the air passage in the casing 2. Further, the air cleaning device 1 may be a deodorizing type having only a deodorizing function, and in this case, the dust collecting filter 3 can be omitted.

As described above, the configuration and arrangement of the casing 2, the air passage F, the dust collecting filter 3, the blower fan 41, etc. are not limited to those described above. In short, it suffices that the photocatalyst carrier 5 be arranged in the casing. In addition, various design changes can be made without changing the gist of the present invention.

[0045]

According to the first aspect of the present invention, it is possible to obtain the purifying action by the photocatalyst by effectively utilizing the sunlight through the window, and as a result, for example, to obtain the air purifying device having a high purifying ability. You can According to the invention of claim 2,
In addition to the effect of the invention described in claim 1, it is easy to effectively use the sunlight by arranging the rear tray.

According to the invention of claim 3, claim 2
In addition to the effect of the invention described in (1), since the air outlet and the window normally provided in the air cleaning device are used in common, the configuration can be simplified. In addition, the window that is also used as the air outlet can allow sunlight to pass therethrough and be used more effectively.

According to the invention of claim 4, claim 3
In addition to the effects of the invention described in (1), it is easy to introduce the sunlight incident from the rear of the vehicle, and furthermore, the airflow from the air outlet is not directly blown to the person in the vehicle, and the draft feeling is not given. According to the invention described in claim 5, in addition to the effect of the invention described in claim 3, it is easy to introduce sunlight incident from above the automobile.

According to the invention of claim 6, claim 1
In addition to the effect of the invention described in any one of 5 to 5, even when it is difficult to obtain sunlight, the purifying action can be obtained by the light of the light source.

[Brief description of drawings]

FIG. 1 is a side view showing an air purifying device according to an embodiment of the present invention in a use state in a vehicle.

2 is a cross-sectional side view of the schematic configuration of the air cleaning apparatus of FIG. 1, showing a BB cross section of FIG. 3;

FIG. 3 is a front cross-sectional view of the air cleaning device of FIG.

FIG. 4 is a plan view of the air cleaning device of FIG. 1, and FIG.
-A cross section is shown.

[Explanation of symbols]

1 Air purifier 2 casing 5 Photocatalyst support 6 light source 9 slits 12 Outlet 20 windows 91 Rear tray F wind path Y direction

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[Procedure amendment]

[Submission date] November 12, 1999 (1999.11.
12)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Correction content]

[Claims]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction content]

[0004]

In order to achieve this object, the air purifying apparatus according to the first aspect of the present invention purifies pollutants in the air flow by irradiating the air passage in the casing with light. In the air purifying device in which the photocatalyst carrier carrying the photocatalyst is arranged, the casing is installed in the passenger compartment of the automobile, has a window through which sunlight passes, and the photocatalyst carrier is The photocatalyst carrier (5) is placed at the back of the window so that it receives sunlight through the window.
A light source (6) for emitting light is provided .

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] 0005

[Correction method] Change

[Correction content]

According to this structure, since the photocatalyst carrier can be irradiated with the sunlight through the window, it is possible to effectively utilize the sunlight to obtain the purifying action of the photocatalyst. Also the sun
Even if it is difficult to obtain the light, the light from the light source is used as the photocatalyst support.
Can be irradiated to obtain a purifying effect. Here, the window may be any portion that allows light to pass therethrough, and may be provided with a translucent member or may be provided with an opening. Further, the back of the window is a position within the casing where the sunlight passing through the window can reach.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Delete

[Procedure Amendment 5]

[Document name to be amended] Statement

[Name of item to be corrected] 0045

[Correction method] Change

[Correction content]

[0045]

According to the invention described in claim 1, the sunlight can be effectively utilized through the window to obtain the purifying action by the photocatalyst. As a result, for example, the light from the light source and the sunlight can be used together.
And use, it is possible to obtain a high purification capacity air cleaning apparatus. Even if it is difficult to get sunlight, the light from the light source
Therefore, a purifying action can be obtained. According to the invention of claim 2, in addition to the effect of the invention of claim 1,
By arranging it on the rear tray, it is easy to effectively use sunlight.

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0048

[Correction method] Delete

Claims (6)

[Claims] 1. An air purifier in which a photocatalyst carrier (5) carrying a photocatalyst that purifies pollutants in an air stream by receiving light irradiation is arranged in an air passage (F) in a casing (2). Equipment (1)
In the above, the casing (2) is installed in the vehicle compartment of the automobile (C), and has a window (20) through which sunlight passes, and the photocatalyst carrier (5) is a window (20). ) Is arranged in the back of the window (20) so as to receive the irradiation of sunlight through the air purification device. 2. The air cleaning apparatus (1) according to claim 1, wherein the casing (2) is arranged on a rear tray (91) of an automobile. 3. The air purifying apparatus (1) according to claim 2, wherein the window (20) also serves as an air outlet (12) for blowing out air. 4. The air purifying apparatus (1) according to claim 3, wherein the air outlet (12) causes the air flow to be higher than that directly above the automobile (C).
An air purifying device comprising a plurality of slits (9) blowing backward with respect to the traveling direction (Y) of the. 5. The air cleaning apparatus (1) according to claim 3, wherein the air outlet (12) includes a plurality of slits (9) for blowing the air flow upward. 6. The air cleaning apparatus according to any one of claims 1 to 5, further comprising a light source (6) for irradiating the photocatalyst carrier (5) with light.