WO2023112196A1

WO2023112196A1 - Photocatalytic device

Info

Publication number: WO2023112196A1
Application number: PCT/JP2021/046246
Authority: WO
Inventors: 潤一染井
Original assignee: カルテック株式会社
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2023-06-22

Abstract

Provided is a photocatalytic device that can reduce the possibility that people conversing across a table will directly inhale air exhaled by one another, or can supply disinfected or deodorized air to said people more directly.　Provided is a photocatalytic device (100) comprising: a tubular member (110) that can be placed on a surface of a table (190), and has a plurality of upward-facing blowing apertures (111) formed therein; at least one fan (140) that is for causing air to flow to the tubular member (110); at least one photocatalyst (120); and at least one light (130) that shines light on the at least one photocatalyst (120).

Description

Photocatalyst device

The present invention relates to the technology of a photocatalyst device for sterilizing and deodorizing the air using a photocatalyst.

Photocatalytic devices for deodorizing and sterilizing the air have long been known. For example, Japanese Patent Application Laid-Open No. 2021-94052 (Patent Document 1) discloses a photocatalyst device and a photocatalyst unit. According to Japanese Patent Application Laid-Open No. 2021-94052 (Patent Document 1), a housing, a photocatalyst unit disposed inside the housing and containing a photocatalyst, a light for providing light to the photocatalyst, and air on the surface of the photocatalyst A photocatalyst device is provided comprising a fan for flowing the A photocatalyst unit is configured to be removable from the housing.

JP 2021-94052 A

The object of the present invention is to reduce the possibility that people who are having a conversation across the table will directly inhale the air exhaled by the other person, or to directly deliver the sterilized or deodorized air to the people. To provide a photocatalyst device that can be supplied.

According to one aspect of the invention, a tubular member restable on a surface of a table and formed with a plurality of upwardly directed outlets; and at least one fan for blowing air through the tubular member. and at least one photocatalyst, and at least one light for illuminating the at least one photocatalyst.

As described above, according to the present invention, it is possible to reduce the possibility that people who are having a conversation across the table will directly inhale the air exhaled by the other party, or to reduce the possibility that the people who are having a conversation across the table will directly inhale the air exhaled by the other party. Provided is a photocatalyst device capable of more directly supplying the

1 is an upper perspective view showing the appearance of a photocatalyst device according to a first embodiment; FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a top view which shows the external appearance of the photocatalyst device concerning 1st Embodiment. 1 is an upper perspective view of a photocatalyst device without a desk according to a first embodiment; FIG. 1 is a bottom perspective view of a photocatalyst device according to a first embodiment with a desk removed; FIG. FIG. 2 is an upper perspective view of the photocatalyst device in a state where the upper side of the housing cover of the main body is removed according to the first embodiment; FIG. 2 is a bottom perspective view of the photocatalyst device with the housing cover of the main body removed according to the first embodiment; FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2; It is a lower perspective view of a photocatalyst device according to a second embodiment. It is the left side view of the photocatalyst device when (A) thickness of a desk is large concerning 3rd Embodiment, and (B) is a left side view of a photocatalyst device when the thickness of a desk is small. It is a front view of a photocatalytic device according to a fourth embodiment. It is a front cross-sectional view of a photocatalyst device according to a fifth embodiment. It is a front cross-sectional view of a photocatalyst device according to a sixth embodiment. It is a front cross-sectional view of a photocatalyst device according to a seventh embodiment. It is a front cross-sectional view of a photocatalyst device according to an eighth embodiment. It is a front cross-sectional view of a photocatalyst device according to a ninth embodiment. It is a front sectional view of another photocatalytic device according to the ninth embodiment. It is a front sectional view of another photocatalytic device according to the ninth embodiment. FIG. 20 is a front cross-sectional view of another photocatalyst device according to the tenth embodiment; It is a front sectional view of a photocatalytic device according to an eleventh embodiment. FIG. 21 is a front cross-sectional view of a photocatalyst device according to a twelfth embodiment; FIG. 22 is a front cross-sectional view of another photocatalyst device according to the twelfth embodiment; FIG. 22 is a front cross-sectional view of another photocatalyst device according to the twelfth embodiment; FIG. 22 is a front cross-sectional view of another photocatalyst device according to the twelfth embodiment; FIG. 21 is a perspective view showing a connecting structure of tubular members according to a twelfth embodiment; FIG. 20 is an image perspective view showing a connecting structure of tubular members according to a twelfth embodiment; FIG. 21 is an image plan view showing a connecting structure of tubular members according to a twelfth embodiment; FIG. 20 is a perspective view showing the configuration of the outlet of the tubular member according to the thirteenth embodiment; FIG. 20 is a perspective view showing the configuration of the outlet of the tubular member according to the thirteenth embodiment;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are given the same reference numerals. Their names and functions are also the same. Therefore, a detailed description thereof will not be repeated. In the following, the overall description of the photocatalyst device 100 and the description of each part of the photocatalyst device 100 will be given along the directions shown in FIG.
[First embodiment]
<Overview of photocatalyst device 100>

First, the external configuration of the photocatalyst device 100 according to this embodiment will be described. 1 to 4, photocatalyst device 100 according to the present embodiment is mainly composed of tubular member 110, main body 150, and connecting pipe 160. As shown in FIG. The main body 150 is arranged under the table 190, sucks air, and sterilizes and deodorizes the air with a photocatalyst. The connecting pipe 160 sends the air after sterilization and deodorization to the tubular member 110 . The cylindrical member 110 blows off the disinfected and deodorized air sent from the main body 150 upward from a plurality of

outlets

111, 111 .

With this configuration, in the present embodiment, it is possible to reduce the possibility that the exhaled breath of people sitting facing each other at the table 190 will be blocked by the air blown out from the cylindrical member 110 and reach the other party as it is. can be done. As a result, the cold of the person you are talking to is less likely to spread.

In addition, since air after sterilization and deodorization is constantly supplied above the table 190, the possibility of inhaling viruses, bacteria, mold, etc. floating in the room is reduced, and the odor of the air in the room is reduced. It is possible to reduce the degree
<Internal Configuration of Photocatalytic Device 100>

Next, the internal configuration of the photocatalyst device 100 according to this embodiment will be described. 1 to 7, a photocatalyst device 100 according to the present embodiment includes a photocatalyst sheet 120, an LED light 130, and a sirocco fan 140 as main components, which are enclosed in a main body 150. It is

In this embodiment, a suction port 151 is formed at the right end of the main body 150 . A filter 152 is provided at the suction port 151 .

The photocatalyst sheet 120 is arranged parallel to the flow of air sucked from the suction port 151 . The photocatalyst sheet 120 decomposes oxygen and moisture in the air adsorbed on its surface by a photoreaction to generate highly reactive superoxide anions (O ₂ −) and OH radicals (.OH). Superoxide anions (O ₂ −) and OH radicals (.OH) can decompose odorous components and decompose or remove germs and viruses. Examples of the photocatalyst sheet 120 include zinc oxide (ZnO), cadmium sulfide (CdS), tungsten trioxide (WO ₃ ), and titanium dioxide (TiO ₂ ), but are not limited to these. do not have.

A substrate 131 is arranged above the photocatalyst sheet 120 in parallel with the photocatalyst sheet 120 . A plurality of

LED lights

130, 130, .

A sirocco fan 140 is arranged on the left side of the photocatalyst sheet 120 . The sirocco fan 140 draws in air from above and below and sends the air to the connecting pipe 160 on the left.

More specifically, in the present embodiment, between the suction port 151 and the photocatalyst sheet 120, a baffle plate 155 is formed downward from the upper surface of the housing cover of the main body 150. As shown in FIG. This makes it easier for the air sucked from the suction port 151 to flow along the surface of the photocatalyst sheet 120 . That is, in the present embodiment, the thickness in the vertical direction is ensured for the suction port 151 and the sirocco fan 140, and the air is easily brought into contact with the photocatalyst 120. FIG.

In the main body 150, when the photocatalyst sheet 120 is attached to the upper part and the LED light 130 is attached to the lower part, between the suction port 151 and the photocatalyst sheet 120, from the lower surface of the housing cover of the main body 150 to the upper side It is preferable that the baffle plate 155 is formed toward .

The connecting pipe 160 sends upward the air pushed out by the sirocco fan 140 and sends the air toward the inside of the tubular member 110 .

The tubular member 110 is formed in a trapezoidal shape in a left-right cross-sectional view and has a hollow interior. A plurality of

outlets

111 , 111 . . . are formed on the upper surface of the tubular member 110 . The

outlets

111, 111 . . . are formed at regular intervals in the left-right direction. However, the outlet may have a slit shape elongated in the left-right direction.

In this embodiment, the tubular member 110, the connecting pipe 160, and the main body 150 are generally U-shaped when viewed from the front. The tubular member 110, the connecting pipe 160, and the main body 150 are made of a material having a certain degree of rigidity. As a result, the photocatalyst device 100 is held by sandwiching the upper and lower surfaces of the table 190 between the tubular member 110 and the main body 150 .

More specifically, it is preferable that the lower surface of the tubular member 110 and the upper surface of the main body 150 have a horizontal planar shape.

Also, when the distance between the bottom surface of the tubular member 110 and the top surface of the main body 150 is longer than the vertical thickness of the table 190, the weight of the main body 150 lowers the left portions of the main body 150 and the tubular member 110. The center of gravity of the entire photocatalyst device 100 including the tubular member 110, the connecting pipe 160, and the main body 150 is positioned more than the central position of the tubular member 110 in the left-right direction so that the right portion of the tubular member 110 is not lifted. It is preferably located on the right side, that is, on the side farther from the connecting pipe 160 . For example, a relatively heavy member may be utilized in the right portion of tubular member 110 .

In the present embodiment, power necessary for the sirocco fan 140, the LED lights 130, 130, . . . is obtained via the USB cable 153. However, the photocatalyst device 100 may obtain power from other general power lines or batteries, or use a charging device.

A switch 157 is provided on the left side of the main body 150 . When the user turns on the switch 157, the LED light 130 lights up and the fan 140 starts to drive. Conversely, when the user turns off the switch, the LED light 130 is extinguished and the fan 140 stops.

Because of this configuration, in the photocatalyst device 100 according to the present embodiment, when the switch 157 is in the ON state, the sirocco fan 140 sucks the air under the table 190 through the suction port 151 . The air is sterilized and deodorized on the surface of the photocatalyst sheet 120 that receives the light from the LED light 130 and is sent to the sirocco fan 140 . The air takes the connecting pipe 160 and flows into the cylindrical member 110 . Finally, the air after sterilization and deodorization is blown upward from the upper surface of cylindrical member 110 .
[Second embodiment]

As shown in FIG. 8, screw holes 158, 158, .

Alternatively, a magnetic tape may be attached to the upper surface of the main body 150 and a magnetic sheet may be attached to the lower surface of the table 190 as well. Then, both may be connected and fixed by magnetic force.

In these cases, the connecting pipe 160 does not need rigidity to support the main body 150 . For example, a bellows structure may be employed in the upper and lower portions of the connecting pipe 160 so that the vertical length of the connecting pipe 160 can be freely adjusted.
[Third Embodiment]

Alternatively, as shown in FIG. 9, the left end of the tubular member 110 and the upper end of the connecting pipe 160 are configured to be rotatable while having a certain amount of frictional force. and the lower end of the connecting pipe 160 may be configured to be rotatable while having a certain amount of frictional force. Therefore, when the table 190 has a large vertical thickness, the connecting pipe 160 is set in a nearly vertical posture as shown in FIG. By slanting the connecting pipe 160 , the cylindrical member 110 , the connecting pipe 160 and the main body 150 can be fixed to the table 190 according to the thickness of the table 190 .
[Fourth Embodiment]

In the above embodiment, the photocatalyst sheet 120, the LED light 130, and the fan 140 are housed inside the main body 150 under the table 190. However, it is not limited to such a form.

For example, as shown in FIG. 10, the photocatalyst sheet 120, the LED light 130, and the fan 140 may be housed in a main body 150 that is placed in another location such as the ceiling, wall surface, or floor surface.
[Fifth Embodiment]

In the above embodiment, the photocatalyst sheet 120, the LED light 130, and the fan 140 are housed inside the main body 150. However, it is not limited to such a form.

For example, as shown in FIG. 11, the photocatalyst sheet 120 and the LED light 130 are arranged inside the first housing 150A apart from the tubular member 110, and the fan 140 is separated from the tubular member 110. It may be stored inside the second housing 150B.
[Sixth Embodiment]

Alternatively, as shown in FIG. 12, the photocatalyst sheet 120 and the LED light 130 may be arranged inside the tubular member 110 and the fan 140 may be housed in the main body 150 separated from the tubular member 110 .
[Seventh embodiment]

Conversely, as shown in FIG. 13, the fan 140 may be arranged inside the tubular member 110, and the photocatalyst sheet 120 and the LED lights 130 may be housed in the main body 150 separated from the tubular member 110. .
[Eighth embodiment]

Alternatively, the photocatalyst sheet 120, the LED light 130, and the fan 140 may be arranged inside the tubular member 110 as shown in FIG. That is, the main body 150 and the tubular member 110 may be configured as one housing.
[Ninth Embodiment]

Alternatively, as shown in FIG. 15, the photocatalyst sheet 120 may be arranged entirely inside the cylindrical member 110 . In this case, it is preferable that a plurality of

LED lights

130, 130 . . . More specifically, each of the plurality of

LED lights

130, 130 . . . is preferably arranged upstream of each of the plurality of

outlets

111, 111 . In addition, it is preferable that the photocatalyst sheet 120 is arranged on the inner lower surface of the cylindrical member 110, and the plurality of

LED lights

130, 130, .

Alternatively, as shown in FIG. 16, a plurality of

photocatalysts

120, 120, . In this case, it is preferable that a plurality of

LED lights

130, 130 . . . More specifically, each combination of the plurality of

LED lights

130, 130 ... and the plurality of

photocatalysts

120, 120 ... is connected to the upstream side of each of the plurality of

outlets

111, 111 ..., that is, the fan 140 side. is preferably placed in the Further, it is preferable that the plurality of

photocatalysts

120, 120, . . . .

17, the photocatalyst 120 may be arranged on the upper surface inside the tubular member 110, and the plurality of

LED lights

130, 130, . . . may be arranged on the lower surface inside the tubular member 110.
[Tenth embodiment]

Alternatively, as shown in FIG. 18, the internal space of the cylindrical member 110 may be divided into upper and lower parts by a photocatalyst sheet 120 or other partition. Then, the end on the side opposite to the connecting pipe 160 may communicate vertically. As a result, the air from the connecting pipe 160 is sterilized and deodorized by the photocatalyst sheet 120 while flowing through the lower portion of the tubular member 110, folded upward at the end, and flowed through the upper portion of the tubular member 110 to the opening 111. , 111 . . .
[Eleventh embodiment]

Furthermore, as shown in FIG. 19 , photocatalyst sheets 120 , LED lights 130 and fans 140 may be arranged at both left and right ends of tubular member 110 . The fan 140 may be arranged inside the tubular member 110 or may be arranged in the main body 150 under the table 190 . The photocatalyst sheet 120 and the LED lights 130 may also be arranged inside the tubular member 110 or may be arranged on the main body 150 under the table 190 .
[Twelfth Embodiment]

Furthermore, as shown in FIG. 20, a plurality of

photocatalyst devices

100, 100 may be connected to each other, or a plurality of

cylindrical members

110, 110, . You may

Alternatively, as shown in FIG. 23, a plurality of

cylindrical members

110, 110... may be branched and connected.

Furthermore, it is preferable that the air flow can be blocked or communicated at the branched portion, the inside of the

cylindrical members

110, 110, and the like.

Also, in the present embodiment, it is preferable that the plurality of

cylindrical members

110, 110... can be freely connected or removed.

In addition, the cylindrical member 110 may be configured to be expandable and contractible by having a nested structure like a clothesline, or may be bent.

Further, the cylindrical member 110 may be made of synthetic resin or the like, or may be made of soft vinyl chloride or the like.

Alternatively, as shown in FIGS. 24 to 26, it is also preferable to connect the

cylindrical members

110, 110, . . . Accordingly, it is possible to flexibly adjust the position at which the sterilized and deodorized air is blown, based on the arrangement of people sitting on the table 190 .
[Thirteenth Embodiment]

In addition to the above embodiment, as shown in FIG. 27,

upward ribs

112, 112 may be formed in front and behind the

outlets

111, 111, . . . . That is, the

ribs

112 , 112 are formed to extend in the longitudinal direction of the cylindrical member 110 . This also makes it possible to reduce the scattering of the air after sterilization and deodorization in the front-rear direction immediately after the air is blown out. In addition, the

outlets

111, 111, .

Further, in the above embodiment, the upper surface of the cylindrical member 110 is formed with a plurality of

outlets

111, 111 . . . The

outlets

111, 111, . may By lengthening the straight portions of the

outlets

111B, 111B, .
[14th embodiment]

Although the sirocco fan 140 is used in the above embodiment, it is not limited to such a form. For example, a cross-flow fan, a propeller fan, or the like may be used.

Also, a plurality of fans may be arranged in parallel or in series inside the main body 150 or the cylindrical member 110 .
[Fifteenth Embodiment]

Although the photocatalyst sheet 120 is arranged parallel to the air flow in the above embodiment, the photocatalyst filter may be arranged perpendicular to the air flow.

Also, a plurality of photocatalyst sheets or photocatalyst filters may be arranged in parallel or in series in the main body 150 or the cylindrical member 110 .
[summary]

In the above embodiments, a tubular member that can be placed on the surface of a table and that is formed with a plurality of upwardly directed outlets; and at least one fan for blowing air through the tubular member. and at least one photocatalyst, and at least one light for illuminating the at least one photocatalyst.

　Preferably, at least one fan is arranged in a housing separate from the tubular member. The photocatalyst device further includes a pipe that communicates between the tubular member and the housing.

Preferably, at least one photocatalyst and at least one light are arranged in a housing separate from the cylindrical member. The photocatalyst device further includes a pipe that communicates between the tubular member and the housing.

Preferably, the housing is arranged on the back side of the table.

At least one photocatalyst is spread over an area in which a plurality of outlets are formed in the tubular member. The at least one light includes a plurality of lights that illuminate the photocatalyst.

Preferably, the at least one photocatalyst includes a plurality of photocatalysts dispersedly arranged within the tubular member. The at least one light includes a plurality of lights that illuminate the plurality of photocatalysts.

Preferably, the at least one fan includes a first fan for injecting air from one end side of the tubular member and a second fan for injecting air from the other end side of the tubular member. include. The at least one photocatalyst includes a first photocatalyst positioned in the path of air flowed by the first fan and a second photocatalyst positioned in the path of air flowed by the second fan. The at least one light includes a first light that illuminates the first photocatalyst and a second light that illuminates the second photocatalyst.

The embodiments disclosed this time should be considered illustrative in all respects and not restrictive. The scope of the present invention is indicated by the scope of the claims rather than the above description, and is intended to include all modifications within the scope and meaning equivalent to the scope of the claims.

Reference Signs List 100: Photocatalyst device 110: Cylindrical member 111: Blowout port 111B: Blowout port 112: Rib 115: Bellows connection pipe 120: Photocatalyst sheet (photocatalyst)
130: LED light 131: Board 140: Sirocco fan 150: Main body 150A: First housing 150B: Second housing 151: Suction port 152: Filter 153: USB cable 155: Wind guide plate 157: Switch 158: Screw Hole 160: Connection pipe 190: Table

Claims

a cylindrical member that can be placed on the surface of a table and has a plurality of upwardly directed outlets;
at least one fan for flowing air through the tubular member;
at least one photocatalyst;
and at least one light that irradiates the at least one photocatalyst with light.
The at least one fan is arranged in a housing separate from the tubular member,
2. The photocatalyst device according to claim 1, further comprising a pipe connecting said cylindrical member and said housing.
The at least one photocatalyst and the at least one light are arranged in a housing separate from the tubular member,
2. The photocatalyst device according to claim 1, further comprising a pipe connecting said cylindrical member and said housing.
The photocatalyst device according to claim 2 or 3, wherein the housing is arranged on the back side of the table.
The at least one photocatalyst is arranged to spread over an area in which the plurality of outlets are formed in the tubular member,
5. The photocatalyst device according to any one of claims 1 to 4, wherein said at least one light includes a plurality of lights that irradiate said photocatalyst with light.
The at least one photocatalyst includes a plurality of photocatalysts distributed within the tubular member,
5. The photocatalyst device according to any one of claims 1 to 4, wherein said at least one light includes a plurality of lights that irradiate said plurality of photocatalysts with light.
The at least one fan includes a first fan for injecting air from one end side of the tubular member and a second fan for injecting air from the other end side of the tubular member. including
the at least one photocatalyst includes a first photocatalyst positioned in the path of air flowed by the first fan and a second photocatalyst positioned in the path of air flowed by the second fan;
7. The at least one light includes a first light that irradiates the first photocatalyst with light and a second light that irradiates the second photocatalyst with light. The photocatalyst device according to the item.