JP2022088778A - Photocatalyst device - Google Patents

Abstract

An object of the present invention is to provide a photocatalyst device that is easy to maintain. A housing (101), a photocatalyst unit (110) disposed inside the housing (101) and containing a photocatalyst (112), a light unit (140) for providing light to the photocatalyst (112), and a light unit (140) for flowing air over the surface of the photocatalyst (112). A photocatalyst device 100 is provided which includes a cross-flow fan 120 of . A photocatalyst unit 110 is configured to be removable from the housing 101 . [Selection drawing] Fig. 7

Description

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

Conventionally, photocatalytic devices for deodorizing and sterilizing air have been known. For example, Japanese Patent Application Laid-Open No. 2014-219130 (Patent Document 1) discloses a refrigerator using a photocatalyst. According to Japanese Patent Application Laid-Open No. 2014-219130 (Patent Document 1), a catalyst base carrying a photocatalyst is attached to the storage chamber side of the back panel constituting the cold air passage so that the photocatalyst is exposed, and light is directed toward the catalyst base. A light emitting diode was provided on the inner surface of the inner box constituting the cold air passage so as to irradiate. Since the catalyst base is provided in a part of the back panel and the photocatalyst is excited by the light emitting diode provided in the inner box, the size of the catalyst base can be arbitrarily set and a sufficient catalyst area can be secured. .. Therefore, it is possible to effectively deodorize or sterilize the odorous components of the storage chamber having a large volume. Furthermore, since the oxygen concentration in the storage chamber can be reduced by the carbon dioxide generated by the catalytic action of the photocatalyst, the effect of suppressing the respiratory action of the vegetables and keeping the vegetables in a fresh state for a long time is possible. Will also play.

Japanese Unexamined Patent Publication No. 2014-219130

An object of the present invention is to provide a photocatalytic device for efficiently deodorizing and sterilizing air.

According to one aspect of the present invention, a photocatalyst device including a housing and a first photocatalyst unit arranged inside the housing is provided. The first photocatalyst unit includes a photocatalyst sheet, at least one first light that illuminates the surface of the photocatalyst sheet, and at least one second light that illuminates the back surface of the photocatalyst sheet. The photocatalyst device further includes a fan for flowing air through the photocatalyst unit.

As described above, according to the present invention, there is provided a photocatalytic device for efficiently deodorizing and sterilizing air.

It is a front perspective view which shows the appearance of the photocatalyst apparatus which concerns on 1st Embodiment. It is a rear perspective view which shows the appearance of the photocatalyst apparatus which concerns on 1st Embodiment. It is a front perspective view which shows the process of taking out the photocatalyst unit from the photocatalyst apparatus which concerns on 1st Embodiment. It is a front perspective view which shows the state which the housing cover of the photocatalyst device which concerns on 1st Embodiment is removed. Further, it is a front perspective view showing a state in which the substrate of the LED light for illuminating the front of the photocatalyst unit on the front side of the photocatalyst device from the front is removed. Further, it is a front perspective view showing a state in which the photocatalyst unit on the front side of the photocatalyst device is removed. Further, it is a front perspective view showing a state in which the substrate of the LED light for illuminating the back surface of the photocatalyst unit on the front side of the photocatalyst device from the rear is removed. In the present embodiment, the substrate of the LED light for illuminating the front surface of the photocatalyst unit on the rear side from the front is visible, and the upper end portion of the photocatalyst unit on the rear side is also visible. It is a front view of the photocatalyst apparatus which concerns on 1st Embodiment. FIG. 8 is a cross-sectional view taken along the line AA of FIG. FIG. 8 is a cross-sectional view taken along the line BB of FIG. It is a perspective view of the photocatalyst unit which concerns on 1st Embodiment. It is a functional block diagram which shows the structure of the photocatalyst apparatus which concerns on 1st Embodiment. FIG. 8 is a sectional view taken along the line BB of FIG. 8 in the second embodiment. FIG. 8 is a sectional view taken along the line BB of FIG. 8 in the second embodiment. FIG. 8 is a sectional view taken along the line BB of FIG. 8 in the third embodiment. It is a functional block diagram which shows the structure of the photocatalyst apparatus which concerns on 3rd Embodiment. FIG. 8 is a sectional view taken along the line BB of FIG. 8 in the third embodiment. It is a functional block diagram which shows the structure of the photocatalyst apparatus which concerns on 3rd Embodiment. It is a functional block diagram which shows the structure of the photocatalyst apparatus which concerns on 4th Embodiment. It is a functional block diagram which shows the structure of the photocatalyst apparatus which concerns on 6th Embodiment. It is a functional block diagram which shows the structure of the photocatalyst apparatus which concerns on 7th Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are designated by the same reference numerals. Their names and functions are the same. Therefore, the detailed description of them will not be repeated. Further, in the following description of the photocatalyst device 100 and the description of the photocatalyst unit 110 included in the photocatalyst device 100, in the state shown in FIG. 1, the front direction of the paper surface is referred to as the front direction, and the back direction of the paper surface is referred to as the rear direction. The upward direction of the paper is called the upward direction, the downward direction of the paper is called the downward direction, the right direction of the paper is called the right direction, and the left direction of the paper is called the left direction.
[First Embodiment]
<Overview of photocatalyst device 100>

First, the external configuration of the photocatalyst device 100 according to the present embodiment will be described. With reference to FIGS. 1 and 2, the photocatalyst device 100 according to the present embodiment is configured to be able to stand on the floor. The photocatalyst device 100 and the housing 101 are configured to be thin in the front-rear direction. The photocatalyst device 100 and the housing 101 are configured to have a substantially square shape in front view and a track shape in plan view. A suction port 102 is formed in the lower part of the back surface of the housing 101, and an outlet 103 is formed in the upper surface of the housing 101.

In particular, with respect to the photocatalyst device 100 according to the present embodiment, as shown in FIG. 3, a plurality of photocatalyst units 110A, 110B, 110C, 110D are detachably mounted. By providing the plurality of photocatalyst units 110, it is possible to sterilize and deodorize air more efficiently and powerfully than before. Further, with the top cover 106 and the wind direction frame 108 removed from the housing 101, the plurality of photocatalyst units 110A, 110B, 110C, 110D can be easily pulled out from the housing 101 individually. As a result, the user can take out the photocatalyst units 110A, 110B, 110C, 110D and easily wash the photocatalyst filter with water.

The photocatalyst units 110A, 110B, 110C, and 110D are collectively referred to as a photocatalyst unit 110. Further, the LED light units 140AA, 140AB, 140BA, 140BB, 140CA, 140CB, 140DA, and 140DB, which will be described later, are collectively referred to as an LED light unit 140.
<Internal configuration of photocatalyst device 100>

Next, the internal configuration of the photocatalyst device 100 according to the present embodiment will be described. With reference to FIGS. 4 to 10, the photocatalyst device 100 according to the present embodiment includes four photocatalyst units 110, eight LED light units 140, and one cross-flow fan 120 as main components. Including, they are included in the housing 101.

The cross-flow fan 120 is arranged in the vicinity of the suction port 102 at the bottom of the housing 101. A filter 129 is detachably attached between the cross flow fan 120 and the suction port 102. This reduces the possibility that dust or the like will be sucked into the cross flow fan 120.

The cross-flow fan 120 sucks in air from the rear of the housing 101 through the filter 129 and ejects it from the upper end of the housing 101. In the present embodiment, the wind direction frame 108 having a plurality of diagonally formed plates 108A and the upper surface cover 106 are detachably attached to the outlet 103.

In the present embodiment, the cross flow fan 120 includes a motor (not shown), a rotating shaft 122, and a plurality of wings 123, 123, .... A stabilizer 124 is arranged above the rear of the cross-flow fan 120 so that air from the cross-flow fan 120 is sent upward.

Above the cross-flow fan 120, four photocatalyst units 110 and eight LED light units 140 are arranged.

More specifically, with reference to FIG. 3, the four photocatalyst units 110 are, in plan view, a photocatalyst unit 110A on the right front side, a photocatalyst unit 110B on the right rear side, a photocatalyst unit 110C on the left front side, and a photocatalyst unit 110C on the left rear side. Includes a photocatalyst unit 110D. The photocatalyst unit 110A on the right front side and the photocatalyst unit 110B on the right rear side are arranged parallel to each other in the front-rear direction. Both the photocatalyst unit 110C on the left front side and the photocatalyst unit 110D on the left rear side are arranged parallel to each other in the front-rear direction. The photocatalyst unit 110A on the right front side and the photocatalyst unit 110C on the left front side are arranged on an extension surface of each other in the left-right direction. Both the photocatalyst unit 110B on the right rear side and the photocatalyst unit 110D on the left rear side are arranged on an extension surface of each other in the left-right direction.

Then, with reference to FIGS. 9 and 10, with respect to the photocatalyst unit 110A on the right front side, the LED substrate 141AA facing the front surface, that is, the surface thereof is arranged, and the front surface of the photocatalyst unit 110A is placed on the rear surface of the LED substrate 141AA. A plurality of LED light bodies 142, 142, ... For irradiating are arranged. Regarding the photocatalyst unit 110A on the right front side, the substrate 141AB is arranged so as to face the back surface, that is, the back surface thereof, and a plurality of LED lights for illuminating the rear surface of the photocatalyst unit 110A on the front surface of the substrate 141AB. The main bodies 142, 142 ... Are arranged. The positions of the LED light bodies 142, 142 ... Of the substrate 141AA and the positions of the LED light bodies 142, 142 ... Of the substrate 141AB are offset from each other in the front view of the photocatalyst device 100. That is, they are placed in positions that do not overlap each other.

Similarly, with respect to the photocatalyst unit 110B on the right rear side, the substrate 141BA is arranged so as to face the front surface, that is, the surface thereof, and a plurality of LEDs for illuminating the front surface of the photocatalyst unit 110B on the rear surface of the substrate 141BA. The light bodies 142, 142 ... Are arranged. Regarding the photocatalyst unit 110B on the right rear side, the substrate 141BB is arranged so as to face the back surface, that is, the back surface thereof, and a plurality of LED lights for illuminating the rear surface of the photocatalyst unit 110B on the front surface of the substrate 141BB. The main bodies 142, 142 ... Are arranged. The positions of the LED light bodies 142, 142 ... Of the substrate 141BA and the positions of the LED light bodies 142, 142 ... Of the substrate 141BB are offset from each other in the front view of the photocatalyst device 100. That is, they are placed in positions that do not overlap each other.

Similarly, with respect to the left front photocatalyst unit 110C, the substrate 141CA is arranged so as to face the front surface, that is, the surface thereof, and a plurality of LEDs for illuminating the front surface of the photocatalyst unit 110C on the rear surface of the substrate 141CA. The light bodies 142, 142 ... Are arranged. Regarding the photocatalyst unit 110C on the left front side, the substrate 141CB is arranged so as to face the back surface, that is, the back surface thereof, and a plurality of LED lights for illuminating the rear surface of the photocatalyst unit 110C on the front surface of the substrate 141CB. The main bodies 142, 142 ... Are arranged. The positions of the LED light bodies 142, 142 ... Of the board 141CA and the positions of the LED light bodies 142, 142 ... Of the board 141CB are offset from each other in the front view of the photocatalyst device 100. That is, they are placed in positions that do not overlap each other.

Similarly, for the photocatalyst unit 110D on the left rear side, the substrate 141DA is arranged so as to face the front surface, that is, the surface thereof, and a plurality of LEDs for illuminating the front surface of the photocatalyst unit 110D on the rear surface of the substrate 141DA. The light bodies 142, 142 ... Are arranged. Regarding the photocatalyst unit 110D on the left rear side, the substrate 141DB is arranged so as to face the back surface, that is, the back surface thereof, and a plurality of LED lights for illuminating the rear surface of the photocatalyst unit 110D on the front surface of the substrate 141DB. The main bodies 142, 142 ... Are arranged. The positions of the LED light bodies 142, 142 ... Of the board 141DA and the positions of the LED light bodies 142, 142 ... Of the board 141DB are offset from each other in the front view of the photocatalyst device 100. That is, they are placed in positions that do not overlap each other.

The air sent from the cross-flow fan 120 passes between the four photocatalyst units 110 and the eight LED light units 140 and flows upward.

Above the photocatalyst unit 110 and the LED light unit 140, an outlet 103 of the housing 101 is formed. In particular, in the present embodiment, the wind direction frame 108 of the outlet 103 is provided with a plurality of light-shielding plates 108A, 108A ... This reduces the degree to which the direct light from the LED light unit 140 and the stray light due to reflection leak from the outlet 103.

Then, as shown in FIGS. 3 and 7, the user can remove the photocatalyst unit 110 from the housing 101 by removing the cover 106 at the upper end of the housing 101 and then pulling and sliding the photocatalyst unit 110 upward. can. The photocatalyst unit 110 slides in the vertical direction along the slide rail 101L inside the housing 101.
<Structure of photocatalyst unit 110>

In the present embodiment, as shown in FIG. 11, more specifically, the photocatalyst sheet 111, the fence-shaped or net-shaped front frames 113, 113 ... Covering the front surface of the photocatalyst sheet 111, and the photocatalyst sheet 111. Includes fence-like or mesh-like frames 114, 114 covering the back surface and grips 112.

The photocatalyst sheet 111 decomposes oxygen and water in the air adsorbed on the surface by a photoreaction to generate highly reactive superoxide anion (O2-) and OH radical (.OH). The superoxide anion (O2-) and OH radical (・ OH) can decompose odorous components, remove germs, and decompose ethylene gas to suppress deterioration of freshness of foods and the like. can. Examples of the photocatalyst sheet 111 include, but are not limited to, zinc oxide (ZnO), cadmium sulfide (CdS), tungsten trioxide (WO3), titanium dioxide (TiO2), and the like.

The user can easily pull out the photocatalyst unit 110 from the housing 101 by grasping the grip portion 112.

The front frame 113 and the rear frame 114 are made of a plurality of thin members so that air from the cross flow fan 120, water for cleaning, and the like can easily touch the photocatalyst sheet 111, and the user's finger can touch the photocatalyst sheet 111. Arranged at intervals that cannot be touched. That is, the front frame 113 and the rear frame 114 are formed in a fence shape or a mesh shape.

Further, regarding the photocatalyst unit 110 according to the present embodiment, since the front frames 113, 113 ... And the rear frames 114, 114 are provided at positions away from the surface of the photocatalyst sheet 111, the user can use the photocatalyst. The risk of touching the sheet 111 can be further reduced.
<Functional configuration of photocatalyst device 100>

The functional configuration of the photocatalyst device 100 according to the present embodiment will be described. As shown in FIG. 12, the photocatalyst device 100 mainly includes a control unit 130 arranged at any position of the housing 101, an operation unit 170 arranged on the upper surface of the housing 101, and an LED light unit 140. The cross-flow fan 120 and the power unit 180 are included. The power unit 180 may be a connector, an adapter, or a cable for acquiring electric power from the outside, or may be a battery housed in the housing 101.

When the power is turned on via the operation unit 170, the control unit 130 drives the cross flow fan 120 and turns on the LED light unit 140 by using the electric power from the power unit 180. As a result, the air sucked from the suction port 102 by the cross flow fan 120 is sterilized and deodorized by the photocatalyst sheets 111, 111 ..., And the air after the sterilization and deodorization is ejected from the outlet 103.
[Second Embodiment]

In addition to the above embodiment, as shown in FIG. 13, a substabilizer 125 may be provided between the front photocatalyst units 110A and 110C and the rear photocatalyst units 110B and 110D. The substabilizer 125 allows the air from the cross flow fan 120 to flow evenly into the front photocatalyst units 110A and 110C and the rear photocatalyst units 110B and 110D.

As shown in FIG. 14, the substabilizer 125B is an extension of the substrate 141 of the LED light units 140AB and 140CA for illuminating the back surface of the front photocatalyst units 110A and 110C, or the rear photocatalyst unit. The board 141 of the LED light units 140BA and 140DA for illuminating the front surface of the 110B and 110D may be extended.
[Third Embodiment]

Further, as shown in FIGS. 15 and 16, the substabilizer 126 is formed in a size capable of blocking the air passages of the front photocatalyst units 110A and 110C and the air passages of the rear photocatalyst units 110B and 110D. You may. Then, the control unit 130 rotates the substabilizer 126 by controlling the stepping motor 127 according to the command input to the operation unit 170. As a result, the air passages of the front photocatalyst units 110A and 110C and the air passages of the rear photocatalyst units 110B and 110D are blocked. When the front photocatalyst units 110A and 110C are removed for cleaning or drying, the user inputs an instruction to close the air passage on the front side to the operation unit 170. On the contrary, when the rear photocatalyst units 110B and 110D are removed for cleaning and drying, the user inputs an instruction to close the air passage on the rear side to the operation unit 170.

Alternatively, as shown in FIGS. 17 and 18, a windbreak plate 126A that closes both air passages of the photocatalyst units 110A and 110B on the right side and a windbreak plate 126B that closes both air passages of the photocatalyst units 110C and 110D on the left side are provided. You may. Then, the control unit 130 controls the stepping motors 127A and 127B according to the command input to the operation unit 170 to block the air passages of the photocatalyst units 110A and 110B on the right side and the photocatalyst units 112A and 110D on the left side. The windbreak plate 126B that closes the air passage is rotated. As a result, the wind flowing through the photocatalyst units 110A and 110B on the right side can be stopped, and the wind flowing through the photocatalyst units 110C and 110D on the left side can be stopped. When the user removes the photocatalyst units 110A and 110B on the right side to clean or dry them, the user inputs an instruction to close the air passage on the right side to the operation unit 170. On the contrary, when the left photocatalyst units 110C and 110D are removed for cleaning or drying, the user inputs an instruction to close the left air passage to the operation unit 170.
[Fourth Embodiment]

Further, in the above embodiment, one cross-flow fan 120 sends wind to the photocatalyst units 110A and 110B on the right side and the photocatalyst units 110C and 110D on the left side. However, in the present embodiment, as shown in FIG. 19, the cross-flow fan blows wind to the cross-flow fans 120A for sending wind to the photocatalyst units 110A and 110B on the right side and the photocatalyst units 110C and 110D on the left side. It may be divided into a cross flow fan 120B for sending.

Then, the control unit 130 drives the motors of the right and left cross flow fans 120A and 120B according to the command input to the operation unit 170, or drives only the motors of the right cross flow fan 120A, or the left side. Only the motor of the cross flow fan 120B is driven. When the user removes the photocatalyst units 110A and 110B on the right side to clean and dry them, the operation unit 170 is instructed to drive the cross flow fan 120A on the right side and to stop the cross flow fan 120B on the left side. Enter. On the contrary, when the user removes the photocatalyst units 110C and 110D on the left side to clean or dry the photocatalyst units 110C and 110D, the user gives an instruction to stop the cross flow fan 120A on the right side and drives the cross flow fan 120B on the left side to the operation unit 170. Enter the command to be made.
[Fifth Embodiment]

As a configuration that does not allow wind to flow, the upper part of the photocatalyst unit 110A on the front right side of the top cover 106 and the wind direction frame 108 may be closed, the upper part of the photocatalyst unit 110B on the rear right side may be closed, or the photocatalyst unit on the left front side may be closed. A form in which the upper part of the 110C can be closed or the upper part of the photocatalyst unit 110D on the left rear side can be closed may be adopted.
[Sixth Embodiment]

Further, as shown in FIG. 20, the control unit 130 turns on / off the LED light units 140AA and 140AB of the photocatalyst unit 110A in the front right, and the photocatalyst unit 110B in the rear right, based on the command from the operation unit 170. The LED light units 140BA and 140BB can be turned on and off, the LED light units 140CA and 140CB of the photocatalyst unit 110C on the left front can be turned on and off, and the LED light units 140DA and 140DB of the photocatalyst unit 110D on the left rear can be turned on and off. Is preferable.

The user inputs a command to turn on the LED light unit 140 corresponding to the photocatalyst unit 110A, 110B, 110C, 110D attached to the housing 101, and the LED light corresponding to the one extracted from the housing 101. Input the command to turn off the unit 140.
[7th Embodiment]

In the above embodiment, the fan, stabilizer, and LED light are controlled by the user by operation, but when the photocatalyst unit 110 is pulled out, all the fans are automatically stopped or all. The LED light may be configured to be turned off. For example, as shown in FIG. 21, the detection switch is located near the lower end of the photocatalyst unit 110 inside the housing 101 when the photocatalyst units 110A, 100B, 110C, 110D are inserted all the way to the bottom of the housing 101. 171A, 171B, 171C, and 171D are arranged. Then, in a state where each of the photocatalyst units 110A, 110B, 110C, and 110D is inserted all the way into the housing 101, each of the detection switches 171A, 171B, 171C, and 171D is turned on.

The control unit 130 drives the cross-flow fan 120 and lights all the LED light units 140 only when all the detection switches 171 are turned on. Conversely, when at least one detection switch 171 is turned off, that is, when the photocatalyst unit 110 is removed from the housing 101, the control unit 130 does not drive the cross flow fan 120, but all of them. Turn off the LED light unit 140.

Alternatively, when any of the detection switches 171A, 171B, 171C, and 171D is OFF, the control unit 130 has the photocatalyst units 110A, 110B, 110C, 110D corresponding to the OFF detection switches 171A, 171B, 171C, 171D. LED light units 140AA, 140AB, 140BA, 140BB, 140CA, 140CB, 140DA, 140DB are turned off, cross flow fans 120A and 120B are stopped, and the air passage is closed by the substabilizer 126. On the contrary, the control unit 130 is the LED light units 140AA, 140AB, 140BA, 140BB, 140CA, 140CB, 140DA, 140DB of the photocatalyst units 110A, 110B, 110C, 110D corresponding to the ON detection switches 171A, 171B, 171C, 171D. Is turned on, the cross flow fans 120A and 120B are driven, and the substabilizer 126 is opened.
[summary]

In the above embodiment, a photocatalyst device including a housing and a first photocatalyst unit arranged inside the housing is provided. The first photocatalyst unit includes a photocatalyst sheet, at least one first light that illuminates the surface of the photocatalyst sheet, and at least one second light that illuminates the back surface of the photocatalyst sheet. The photocatalyst device further includes a fan for flowing air through the photocatalyst unit.

Preferably, the photocatalyst device further comprises a second photocatalyst unit. The photocatalyst sheet of the second photocatalyst unit and the photocatalyst sheet of the first photocatalyst unit are arranged so as to be parallel to each other.

Preferably, the fan is a cross-flow fan. The photocatalyst device further comprises a substabilizer to facilitate the flow of air into both the first photocatalyst unit and the second photocatalyst unit.

Preferably, the substabilizer is configured by an extension of the substrate of the first light or the second light.

Preferably, the photocatalyst device further comprises a member for closing the air passage of air flowing through the first photocatalyst unit or the second photocatalyst unit.

Preferably, the photocatalyst device has a mode in which one of the first and second lights of the first photocatalyst unit and the second photocatalyst unit is turned on and the other first and second lights are turned off. ..

Preferably, the photocatalyst device further includes a switch for detecting that the first photocatalyst unit has been removed and a switch for detecting that the second photocatalyst unit has been removed. The photocatalyst device turns off the first and second lights of the first photocatalyst unit when the first photocatalyst unit is removed, and turns off the first and second lights of the first photocatalyst unit, and when the second photocatalyst unit is removed, the first photocatalyst unit of the second photocatalyst unit is turned off. And turn off the second light.

Preferably, the photocatalyst device further comprises a third photocatalyst unit including a photocatalyst sheet arranged in an extension direction on the surface of the photocatalyst sheet of the first photocatalyst unit.

Preferably, the photocatalyst device further comprises a member for closing the air passage of air flowing through the first photocatalyst unit or the third photocatalyst unit.

Preferably, the photocatalyst device further comprises a second fan for allowing air to flow through the third photocatalyst unit. The photocatalyst device has a mode for driving one of the above fans.

Preferably, the photocatalyst device has a mode in which one of the first and second lights of the first photocatalyst unit and the third photocatalyst unit is turned on and the other first and second lights are turned off. ..

Preferably, the photocatalyst device further includes a switch for detecting that the first photocatalyst unit has been removed and a switch for detecting that the third photocatalyst unit has been removed. The photocatalyst device turns off the first and second lights of the first photocatalyst unit when the first photocatalyst unit is removed, and turns off the first and second lights of the first photocatalyst unit, and when the third photocatalyst unit is removed, the first photocatalyst unit of the third photocatalyst unit is turned off. And turn off the second light.

Preferably, each of the at least one first light and each of the at least one second light are arranged at different positions from each other when viewed from the vertical direction of the photocatalyst sheet.

Preferably, each at least one photocatalyst unit of at least one photocatalyst unit is configured to be removable from the housing.

Preferably, each of the at least one photocatalyst unit includes a fence-like member for covering the front and back surfaces of the photocatalyst sheet.

It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is shown by the scope of claims, not the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

100: Photocatalyst device 101: Housing 102: Suction port 1021: Light-shielding plate 103: Outlet port 1031: Light-shielding plate 105: Hole 106: Recessed 107: Screw hole 108: Mounting piece 109: Front panel 109A: Mounting piece 109B: Mounting piece 110: Photocatalyst unit 111: Case 111A: Left frame 111B: Rear frame 111C: Right frame 111D: Grip part 112: Photocatalyst sheet 113: Vertical frame 113A: Rising part 113B: Bent part 113C: Central part 114: Horizontal frame 120: Fan 121: Motor 122: Rotating shaft 123: Feather 129: Filter 130: Control unit 140: LED light 141: Board 142: Light body 150: Power unit 160: Mounting unit 161: Sheet metal 162: Recessed portion 163: Hole 165: Gypsum nail 167: Mounting rib 169: Leveling device 170: Operation unit 171: Contact sensor

Claims (15)

With the housing
A first photocatalyst unit arranged inside the housing is provided.
The first photocatalyst unit is
Photocatalyst sheet and
At least one first light that shines light on the surface of the photocatalyst sheet,
Includes at least one second light that sheds light on the back surface of the photocatalyst sheet.
A photocatalyst device further comprising a fan for flowing air through the photocatalyst unit. Further equipped with a second photocatalyst unit,
The photocatalyst device according to claim 1, wherein the photocatalyst sheet of the second photocatalyst unit and the photocatalyst sheet of the first photocatalyst unit are arranged so as to be parallel to each other. The fan is a cross-flow fan.
The photocatalyst device according to claim 2, further comprising a subsystem for facilitating the flow of air into both the first photocatalyst unit and the second photocatalyst unit. The photocatalytic apparatus according to claim 3, wherein the substabilizer is composed of an extension portion of the substrate of the first light or the second light. The photocatalyst device according to any one of claims 2 to 4, further comprising a member for closing the air passage of the air flowing through the first photocatalyst unit or the second photocatalyst unit. The second aspect of the present invention has a mode in which one of the first and second lights of the first photocatalyst unit and the second photocatalyst unit is turned on and the other first and second lights are turned off. 5. The photocatalyst device according to any one of 5. A switch for detecting that the first photocatalyst unit has been removed,
A switch for detecting that the second photocatalyst unit has been removed is further provided.
When the first photocatalyst unit is removed, the first and second lights of the first photocatalyst unit are turned off.
The photocatalyst device according to any one of claims 2 to 5, wherein when the second photocatalyst unit is removed, the first and second lights of the second photocatalyst unit are turned off. The photocatalyst device according to any one of claims 1 to 7, further comprising a third photocatalyst unit including a photocatalyst sheet arranged in an extension direction of the surface of the photocatalyst sheet of the first photocatalyst unit. The photocatalyst device according to claim 8, further comprising a member for closing the air passage of air flowing through the first photocatalyst unit or the third photocatalyst unit. A second fan for flowing air through the third photocatalyst unit is further provided.
The photocatalyst device according to claim 8 or 9, which has a mode for driving either the fan according to claim 1 or the second fan. 8. From claim 8, which has a mode in which the first and second lights of any one of the first photocatalyst unit and the third photocatalyst unit are turned on and the other first and second lights are turned off. 10. The photocatalyst device according to any one of 10. A switch for detecting that the first photocatalyst unit has been removed,
A switch for detecting that the third photocatalyst unit has been removed is further provided.
When the first photocatalyst unit is removed, the first and second lights of the first photocatalyst unit are turned off.
The photocatalyst device according to any one of claims 8 to 11, wherein when the third photocatalyst unit is removed, the first and second lights of the third photocatalyst unit are turned off. Any of claims 1 to 12, wherein each of the at least one first light and each of the at least one second light are arranged at different positions from each other when viewed from the vertical direction of the photocatalyst sheet. The photocatalytic apparatus according to claim 1. The photocatalyst device according to any one of claims 1 to 13, wherein each at least one photocatalyst unit of the at least one photocatalyst unit is configured to be removable from the housing. The photocatalyst device according to claim 14, wherein each of the at least one photocatalyst unit includes a fence-like member for covering the front surface and the back surface of the photocatalyst sheet.

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