JP7366405B2 - photocatalytic device - Google Patents

Description

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

Photocatalytic devices for deodorizing and sterilizing air have been known for some time. For example, Japanese Patent Application Publication No. 2014-219130 (Patent Document 1) discloses a refrigerator using a photocatalyst. According to Japanese Unexamined Patent Application Publication No. 2014-219130 (Patent Document 1), a catalyst base supporting a photocatalyst is attached so that the photocatalyst is exposed on the storage chamber side of the back panel constituting a cold air passage, and light is directed toward the catalyst base. A light emitting diode was installed on the inner surface of the inner box that constitutes the cold air passage to illuminate the cold air passage. A catalyst base is provided on a part of the back panel, and the photocatalyst is excited by a light emitting diode installed in the inner box, so the size of the catalyst base can be set arbitrarily and a sufficient catalyst area can be secured. . Therefore, it becomes possible to effectively deodorize odor components and sterilize a storage room having a large volume. Furthermore, the oxygen concentration in the storage room can be reduced by the carbon dioxide generated by the catalytic action of the photocatalyst, which has the effect of suppressing the respiration of vegetables and allowing them to be stored in a fresh state for a longer period of time. Also begins to play.

Japanese Patent Application Publication No. 2014-219130

An object of the present invention is to provide a photocatalytic device having a lighting function.

According to one aspect of the present invention, a housing having a substantially cylindrical shape or an approximately ellipsoidal shape, a lighting device disposed at a lower part of the housing and whose sides are partially or completely covered by the housing, and an interior of the housing. A photocatalyst device is provided that includes a photocatalyst disposed in a casing, a light disposed inside a casing for irradiating light onto the photocatalyst, and a fan for causing air to flow in contact with the photocatalyst. The fan is configured to draw air through an inlet formed at the top of the housing, contact the photocatalyst, and expel air through the outer periphery of the lighting to the outside of the housing.

As described above, according to the present invention, a photocatalytic device having a lighting function is provided.

FIG. 1 is a top perspective view showing the appearance of the photocatalyst device according to the first embodiment. FIG. 1 is a downward perspective view showing the appearance of the photocatalyst device according to the first embodiment. FIG. 2 is a top perspective view showing the external appearance of the photocatalyst device with the side cover removed according to the first embodiment. FIG. 2 is a plan view showing a right side sectional view of the photocatalyst device according to the first embodiment. FIG. 1 is a plan view showing a front sectional view of the photocatalyst device according to the first embodiment. FIG. 2 is a top perspective view showing the light shielding member according to the first embodiment. FIG. 1 is a perspective view showing a photocatalyst unit according to a first embodiment. It is an exploded view of the photocatalyst unit concerning a 1st embodiment. FIG. 2 is a top perspective view showing the photocatalyst device according to the first embodiment with the side cover removed. FIG. 2 is a top perspective view showing the photocatalyst device in a state in which the photocatalyst unit according to the first embodiment is being pulled out. FIG. 2 is a top perspective view showing the photocatalyst device according to the first embodiment with the photocatalyst unit pulled out. FIG. 2 is a top perspective view showing the photocatalyst device according to the first embodiment with the suction port cover removed.

Hereinafter, a photocatalyst device 100 will be described as an embodiment of the present invention 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, detailed descriptions thereof will not be repeated. Further, in the following description of the photocatalytic device 100, the external appearance of the photocatalytic device 100, and the internal configuration of the photocatalytic device 100, the illumination of the photocatalytic device 100 is directed downward as shown in FIG. The explanation will be given using the directions in the state of the vehicle, such as forward, backward, left, right, upward, and downward.
[First embodiment]
<Exterior configuration of photocatalyst device 100>

First, the external configuration of photocatalyst device 100 according to this embodiment will be described. Referring to FIGS. 1 to 3, a photocatalytic device 100 according to the present embodiment has a light bulb-like shape as a whole. In other words, the main units of the photocatalyst device 100 are housed inside the substantially elliptical spherical housing 110.

More specifically, the housing 110 has a substantially elliptical spherical shape with an open top and bottom. A lighting 120 projects from the bottom, and a base 190 for inserting into a lighting socket installed in a house or the like projects from the top.

The housing 110 mainly includes a main frame 111 and a plurality of side covers 112, 112, 112. At least one side cover 112 is removable from the main frame 111. In particular, regarding the photocatalyst device 100 according to the present embodiment, the user can remove the photocatalyst unit 130 from the main frame 111 with the side cover 112 removed from the main frame 111, as described later.

Further, in this embodiment, an inlet 101 is configured around the base 190 and an outlet 102 is configured around the lighting 120. Hereinafter, such a configuration will be explained in detail.
<Internal configuration of photocatalyst device 100>

Next, the internal configuration of photocatalyst device 100 according to this embodiment will be described with reference to FIGS. 4 and 5. Note that FIG. 4 shows a right side sectional view of the photocatalytic device 100 at the left and right center portions. FIG. 5 shows a front cross-sectional view of the photocatalytic device 100 at the front and rear central portions.

The photocatalyst device 100 according to the present embodiment includes, as main components, a base 190, a suction port cover 115, a light emitting unit 140, a photocatalyst unit 130, a fan 150, a lighting 120, etc. in order from the top. The sides of the light emitting unit 140, the photocatalyst unit 130, the fan 150, the upper part of the lighting 120, etc. are covered by the housing 110 and other members.

First, the suction port cover 115 is attached to the suction port 101 . A plurality of suction filters 115B are formed on the suction port cover 115. When the fan 150 is driven, the pressure above the photocatalyst unit 130 becomes negative, and air is sucked in from the suction filter 115B.

A cylindrical central case 103 is formed in the lower part of the base 190 inside the photocatalytic device 100. A control board and the like are provided inside the central case 103. A light emitting unit 140 is attached to the lower part of the central case 103.

In the light emitting unit 140, a plurality of LED lights 142, 142 are attached to the lower surface of the base 141. A plurality of LED lights 142, 142 illuminate the photocatalyst unit 130 downward.

In this embodiment, light shielding plates 145L and 145R are attached to the sides of the central case 103 so that the light from the LED light of the light emitting unit 140 does not leak from the suction port 101. As shown in FIGS. 5 and 6, the light shielding plates 145L and 145R are a light shielding plate 145L that covers the left side of the central case 103 directly below the suction port 101, and a light shielding plate 145L that covers the right side of the central case 103. A light shielding plate 145R that covers a portion directly below the suction port 101 is included. Note that the air flowing in from the suction port 101 bypasses the outside of the light shielding plates 145L and 145R and heads toward the photocatalyst unit 130 below.

Returning to FIGS. 4 and 5, regarding the photocatalyst unit 130, the photocatalyst main body 131 is attached inside the side cover 132, as shown in FIGS. 7 and 8. A gripping member 133 is attached to the side cover 132. The gripping member 133 includes a peripheral frame 133A for being attached to the side cover 132, and a gripping frame 133B for being gripped by a user's fingers.

In order to increase the surface area, the photocatalyst main body 131 has a large number of vertically penetrating holes formed therein, and is configured to allow air to pass from the top to the bottom. The photocatalyst main body 131 preferably has a thickness of several mm to several cm in the vertical direction, but may also be a thin mesh-like sheet.

Returning to FIGS. 4 and 5, a fan 150 is provided below the photocatalyst unit 130. In this embodiment, fan 150 is a propeller fan. Fan 150 includes a motor 151 and a propeller 152, and as motor 151 rotates, propeller 152 causes air to flow from above to below. More specifically, the air above the photocatalyst body 131 takes the numerous holes in the photocatalyst body 131, passes through the fan 150, and flows toward the illumination 120.

The lighting 120 includes a substrate 121, a plurality of LED lights 122, 122 attached to the lower surface of the substrate 121, and a substantially hemispherical cover 123 that covers the space below the LED lights 122, 122. However, the shape of the illumination 120 and the shape of the cover 123 are not limited to hemispherical shapes.

In this embodiment, a conical inner guide member 125 is attached above the illumination 120. Thereby, the air flowing from the fan 150 above is guided diagonally downward and smoothly flows out of the casing 110 from the outer periphery of the lighting 120.

Furthermore, in this embodiment, an outer guide member 126 is provided at a position facing the inner guide member 125, that is, in an obliquely outward direction of the inner guide member 125. The outer guide member 126 is configured so that the air flowing from the fan 150 flows diagonally downward smoothly, that is, the air is difficult to escape from the side of the fan 150 to the side or above of the fan 150. has been done.

With this configuration, when the fan 150 is driven, external air passes through the suction filter 115B, is sucked into the sides of the central case 103, and flows downward. The air passes through the inside of the photocatalyst body 131 that is excited by the light, and flows directly below the fan 150. The air from the fan 150 smoothly flows diagonally downward by the inner guide member 125 and the outer guide member 126, and is blown out from the gap between the outer periphery of the lighting 120 and the inner periphery of the housing 110.

In the present embodiment, the photocatalytic device 100 is configured such that when power is supplied from the base 190, the lighting 120 is turned on, the light emitting unit 140 is turned on, and the fan 150 is driven.

Note that a human sensor or the like may be attached to the photocatalyst device 100, and the user may be able to select a mode in which the light emitting unit 140 and the fan 150 are turned on only when a person is detected using the switch shown in FIG.
<Removal configuration of photocatalyst unit 130>

Further, regarding the photocatalyst device 100 according to the present embodiment, as shown in FIGS. 9 to 11, the photocatalyst unit 130 is configured to be detachable. More specifically, as shown in FIG. 9, the user pulls out the base 190 of the photocatalyst device 100 from a lighting socket provided in a house or the like, and removes the side cover 112. Next, as shown in FIGS. 10 and 11, the user pinches the holding frame 133B of the photocatalyst unit 130 and removes the photocatalyst unit 130 from the housing 110. This allows the user to wash the photocatalyst body 131 with tap water or the like while holding the holding frame 133B of the photocatalyst unit 130 with one hand.
<Removal configuration of suction port cover 115>

Further, regarding the photocatalyst device 100 according to the present embodiment, as shown in FIG. 12, the suction port cover 115 is configured to be detachable. More specifically, the user rotates the suction port cover 115 around the base 190 to release the convex portion of the suction port cover 115 from the slit 190B at the base of the base 190, and then moves the suction port cover 115 upward. can be removed.
[summary]

In the above embodiments, there is provided a substantially cylindrical or substantially ellipsoidal casing, a lighting device disposed at the bottom of the casing and whose sides are partially or completely covered by the casing, and an interior of the casing. A photocatalyst device is provided that includes a photocatalyst disposed in a casing, a light disposed inside a casing for irradiating light onto the photocatalyst, and a fan for causing air to flow in contact with the photocatalyst. The fan is configured to draw air through an inlet formed at the top of the housing, contact the photocatalyst, and expel air through the outer periphery of the lighting to the outside of the housing.

Preferably, the photocatalyst is formed with a plurality of holes through which air sucked by the fan passes. A slope for guiding air to the outer periphery of the lighting is provided downstream of the photocatalyst in the air passage.

Preferably, a guide member for guiding air is also provided at a position on the opposite side of the slope.

Preferably, the photocatalyst is configured to be detachable from the photocatalyst device.

Preferably, the device further includes a light shielding member for preventing light from leaking from the air intake port.

Preferably, the photocatalytic device further includes a base for the lighting body. The air suction port is formed in a ring shape around the base. The photocatalyst device further includes a ring-shaped, removable filter that covers the suction port.

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

100: Photocatalyst device 101: Inlet 102: Outlet 103: Central case 110: Housing 111: Main frame 112: Side cover 115: Inlet cover 115B: Inlet filter 120: Lighting 121: Board 122: LED light 123: Cover 125: Inner guide member 126: Outer guide member 130: Photocatalyst unit 131: Photocatalyst main body 132: Side cover 133: Gripping member 133A: Surrounding frame 133B: Holding frame 140: Light emitting unit 141: Base 142: LED light 145L: Light shielding plate 145R : Light shielding plate 150 : Fan 151 : Motor 152 : Propeller 190 : Base 190B : Slit

Claims (5)

a substantially cylindrical or substantially oval spherical housing;
a lighting device disposed at a lower part of the casing and having a part or all of its sides covered by the casing;
a photocatalyst disposed inside the housing;
a side cover surrounding the photocatalyst;
a light disposed inside the casing for irradiating the photocatalyst with light;
A fan for flowing air in contact with the photocatalyst,
The air is drawn in by the fan from a suction port formed at the top of the housing, contacts the photocatalyst, and is discharged to the outside of the housing through the outer periphery of the lighting,
A plurality of vertically penetrating holes are formed in the photocatalyst through which air sucked by the fan passes,
The side cover covers all sides of the photocatalyst, and is provided with a gripping member provided outside the photocatalyst that has a holding frame that is approximately the same as the length of the photocatalyst in the vertical direction,
A side cover is removable from a main frame that is a part of the casing, and by pinching the gripping member with the side cover removed, the side cover holding the photocatalyst can be removed from the casing. A photocatalytic device configured to be detachable from the photocatalytic device. The photocatalyst device according to claim 1, wherein a slope for guiding the air to the outer periphery of the illumination is provided downstream of the photocatalyst of the air. The photocatalyst device according to claim 2, wherein a guide member for guiding the air is provided also at a position on the opposite side of the slope. The photocatalyst device according to any one of claims 1 to 3, further comprising a light shielding member for preventing light from the light from leaking from the air intake port. further comprising a base for the lighting body,
The air suction port is formed in a ring shape around the base,
The photocatalyst device according to any one of claims 1 to 4, further comprising a ring-shaped removable filter that covers the suction port.

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