JP3106397U - Photocatalyst purification tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a photocatalytic purification tool that can be easily and surely attached to a light emitting part of a lighting tool and can obtain high purification performance.
A photocatalytic purification device of the present invention is a photocatalyst supported on a carrier formed in a shape along the whole or a part of a light emitting part of a lamp, and can be easily and reliably fixed to the light emitting part of the lamp. The amount of light from the light fixture received per unit area of the photocatalyst purifier can be maximized, so that the activation of the photocatalyst is maximized, and furthermore, high purification performance can be exhibited by air convection due to heat.
[Selection] Figure 1

Description

Detailed description of the invention

  The present invention forms a photocatalyst purifier in a shape along the whole or part of a light emitting part of a lighting fixture such as a light bulb, a fluorescent lamp, an LED, or a lamp using fuel, and attaches it to the light emitting portion of the lighting fixture for use. Because the amount of light per unit area of the photocatalyst purification tool received from the lighting fixture can be maximized, the activation of the photocatalyst is maximized, resulting in a small amount of required photocatalyst, and due to the heat of the lighting fixture. The present invention relates to a photocatalyst purification tool that can obtain an excellent purification capability because air can be efficiently applied to the photocatalytic purification tool by convection.

  In the conventional photocatalyst, the surface of a light bulb or a fluorescent lamp is directly coated with a photocatalyst layer or light is applied to a structure coated with the photocatalyst to purify air or the like.

The problem the device is trying to solve

  When a photocatalyst layer is coated directly on the surface of a lighting fixture, there is a drawback that a sufficient amount of photocatalyst cannot be coated, and in the case of a light bulb or fluorescent light, there is a disadvantage that it must be discarded every time the light bulb or fluorescent light is blown. . When light is applied to a structure coated with a photocatalyst, there is a distance between the lamp and the photocatalyst, so the amount of light that activates the photocatalyst is reduced, and the structure coated with the photocatalyst and the lamp are fixed. There was a drawback that required special equipment. Furthermore, there is a drawback that the air cannot be sufficiently purified unless the air is forcibly applied to the structure coated with the photocatalyst using a fan or the like.

  The present invention forms a photocatalyst purifier in a shape along the whole or part of a light emitting part of a lighting fixture such as a light bulb, a fluorescent lamp, an LED, or a lamp using fuel, and attaches it to the light emitting portion of the lighting fixture for use. It can be used easily and reliably, the amount of light irradiated per unit area of the photocatalyst purifier is maximized, and the activation of the photocatalyst can be maximized, and the air is efficiently photocatalyzed by the convection due to the heat of the lighting fixture. A high purification performance can be obtained by hitting the purification tool.

Means for solving the problem

  The present invention relates to a support made of metal, ceramics, glass or a cloth, non-woven fabric, honeycomb, sponge-like material or a structure having a through-hole made of metal, ceramics, glass, or heat-resistant resin, along the whole or a part of the light emitting part of the lamp. This is a photocatalyst purifying tool that is molded into a shape and mounted on a light emitting part of a lighting fixture, which is supported by a photocatalyst on the carrier. Since the photocatalyst purification tool of the present invention is attached to the light emitting part of a light fixture such as a light bulb or a fluorescent lamp, it can be used easily and reliably without the need for a special fixture or lighting fixture. In addition, since the amount of light per unit area of the photocatalyst purifier received from the lamp can be maximized, the activation of the photocatalyst is maximized, resulting in a reduction in the amount of required photocatalyst. In addition, a strong ascending air current is generated due to the heat of the lighting tool and the temperature rise of the photocatalyst purifier part to which the light of the lighting tool hits, and the air is efficiently brought into contact with the photocatalyst activated by the light and purified. As a result, an excellent purification capability can be obtained.

The light emitting part of the lighting equipment refers to the part where light is emitted, and in the case of a light bulb, it refers to the glass bulb part of the light bulb. As the shape along the whole or a part of the light emitting portion, a bag shape, a cylindrical shape, a shape lacking a part thereof, or the like can be considered. The photocatalyst purification tool having such a shape is put on the light emitting portion, or attached using a string, a band, a spring or the like as necessary. If the central part of the light emitting part swells like a general incandescent bulb, the photocatalyst purifier molded along the whole light emitting part cannot be installed as it is, so it is divided into two so that the light emitting part can be sandwiched, and the light emitting part Can be attached by fixing with a string, a band, a spring or the like. Alternatively, a photocatalyst purifier is created using a deformable material carrier, and the opening of the photocatalyst purifier is spread over and covered with the light emitting portion, and then the opening is returned to the original state to form the light emitting portion. Can be installed. It is also effective to make a cut that allows the light bulb to enter the opening of the photocatalyst purifier. A light-catalyst purifier having the same shape as that of a light bulb can be used for a light bulb type fluorescent lamp.

The light emitting part of the fluorescent lamp refers to the glass tube part of the fluorescent lamp, and the shape along the whole or a part of the light emitting part may be a cylinder or a shape lacking a part of the cylinder. In the case of a straight tube type fluorescent lamp, the photocatalytic purification tool is molded into a straight cylindrical shape, in the case of a ring type fluorescent lamp, or in a shape lacking a part thereof, and the light emitting part is covered or necessary. Attach it using a string, band or spring. When making the shape along the whole light emitting part of the annular fluorescent lamp, it can not be installed as it is, so that the light emitting part can sandwich the tubular photocatalytic purification tool curved to follow the whole light emitting part shape It can be mounted by splitting it in half and fixing it with a string, band or spring after sandwiching the light emitting part. When a carrier is made of a deformable material, a photocatalyst purifier is created with a carrier that has a slit in the generatrix direction of the column surface of a straight cylindrical carrier, and an annular fluorescent lamp is created from the slit. And can be attached to the light emitting part of the annular fluorescent lamp.

The light emitting part of a lamp that uses fuel refers to a glass firehouse that protects the flame of the lamp, and the shape along the whole or part of the light emitting part may be a cylinder or a shape lacking a part thereof Conceivable. The light emitting part of the LED indicates a glass part or a resin part covering the LED light emitting element, and a shape along the whole or a part of the light emitting part is required. In addition, since a plurality of LED light emitting elements are often used in a bundle, a plurality of bundled LED light emitting elements are regarded as one lighting fixture, and a shape along the whole or part of the glass part or the resin part of the plurality of LED light emitting elements bundled is required. Become.

As a method of supporting the photocatalyst on the carrier, a method of CVD coating the photocatalyst, a method of using a coating agent in which a photocatalyst is dispersed in an inorganic, organic or inorganic-organic composite coating agent, a precursor such as ammonium ammonium oxalate, etc. There is a method of carrying a photocatalyst by baking after coating. When the support is a heat-resistant resin, it is desirable to support the photocatalyst after undercoating in advance with an inorganic coating agent that does not contain a photocatalyst component.

Usually, the temperature of light emitting parts of light bulbs and fluorescent lamps used in ordinary homes rises to about 200 ° C. Therefore, as heat-resistant resins, Kevlar, silicone, Teflon, polycarbonate, bakelite, etc., resins having a melting point of 200 ° C or higher Can be used. In addition to bulbs and fluorescent lamps, high-intensity discharge tubes such as sodium lamps, metal halide lamps, mercury lamps, black lights, germicidal lamps, and bulb-type fluorescent lamps can also be used. It is desirable to make a carrier using heat-resistant metal, ceramics, glass or the like. A metal, ceramics, glass, or the like having high heat resistance can be used for a lighting fixture that becomes high temperature such as a lamp using fuel.

As the photocatalyst, titanium oxide, a photocatalyst in which another metal or compound is combined with titanium oxide, or another photocatalyst can be used. Since ordinary photocatalysts are activated only by ultraviolet rays as they are, ultraviolet lamps are usually used for activation. However, the photocatalyst purifier of the present invention can make full use of the light of the lighting fixtures, so that light bulbs and fluorescent lamps can be used. Sufficient activity can be obtained even with a slight amount of ultraviolet rays contained in the water. When a titanium oxide infused with nitrogen or metal or a visible light activated photocatalyst described in Japanese Patent Application No. 2003-064162 is used, which is activated even with visible light, sufficient activity can be obtained even with a lamp that emits only visible light.

  Embodiments of the invention will be described with reference to the drawings based on examples.

Example 1
2, 3 and 4 show one embodiment of the present invention. FIG. 1 is a cross-sectional view of a state in which the photocatalytic purification tool 1 is mounted on the light emitting part 2 of the light bulb X. In the photocatalyst purification tool 1, a carrier made of an aluminum fiber nonwoven fabric was molded into a shape along the entire light emitting portion 2 of the light bulb X, and a titanium oxide photocatalyst was carried on the carrier. Titanium oxide is supported in a titanium oxide powder dispersion solution in which 200 g of anatase-type titanium oxide powder having an average particle diameter of 6 nm is dispersed in a solution obtained by mixing 0.01 mol of tetraethyl orthosilicate and 0.01 mol of titanium tetraisopropoxide in 1 l of isopropyl alcohol. After the dispersion solution was spray-coated on the carrier, the titanium oxide was supported by baking at 200 ° C. Since the photocatalyst purification tool 1 can be deformed, the photocatalyst purification tool 1 can be easily and reliably mounted by returning it to the original state after covering the light emitting part 2 with the opening of the photocatalyst purification tool 1 being expanded.

Example 2
As shown in FIGS. 6, 7, and 8, a photocatalytic purification device was prepared in the same manner as in Example 1 except that the shape of the carrier was changed to the shape along the entire light emitting portion 5 of the straight tube fluorescent lamp Y. . FIG. 5 is a cross-sectional view of the state in which the photocatalyst purifier 4 is mounted on the light emitting portion 5 of the straight tube fluorescent lamp Y.

Example 3
As shown in FIGS. 10, 11, and 12, after slits 8 are formed in the generatrix direction of the column surface of the straight cylindrical carrier, the cylindrical carrier is used as the light emitting unit 7 of the annular fluorescent lamp Z. A photocatalyst purification tool was prepared in the same manner as in Example 1 except that a carrier curved to conform to the shape was used. FIG. 9 is a cross-sectional view of the state in which the photocatalytic purification tool 6 is mounted on the light emitting portion 7 of the annular fluorescent lamp Z. Since the photocatalyst purification tool 6 can be deformed, the annular fluorescent lamp Z can be inserted and attached from the slit 8 of the photocatalyst purification tool 6.

Example 4
As shown in FIGS. 15, 16, and 17, a photocatalyst purifier is prepared in the same manner as in Example 1 except that the shape of the carrier is changed to a shape along a part of the light emitting portion 12 of the straight tube fluorescent lamp W. did. FIG. 14 is a perspective view of a state in which the photocatalyst purifier 11 is mounted on the light emitting part 12 of the straight tube fluorescent lamp W. FIG.

Effect of device

  The present invention is configured as described above, and a support body made of a structure having a cloth, a nonwoven fabric, a honeycomb, a sponge-like material, or a through-hole made of metal, ceramics, glass, or a heat-resistant resin is used for a lamp. A photocatalyst purification tool, which is molded into a shape along the whole or a part of a light-emitting portion, and a photocatalyst carried on the carrier is directly attached to a lamp. Since the photocatalyst purification tool of the present invention is mounted on the light emitting part of a lighting fixture, it can be used easily and reliably without the need for special fixtures or lighting fixtures. In addition, since the amount of light received from the lamp per unit area of the photocatalyst purifier can be maximized, the activation of the photocatalyst is maximized, resulting in a reduction in the amount of photocatalyst required. In addition, a strong ascending air current is generated due to the temperature rise of the photocatalyst purifier part to which the light of the lamp and the light of the lamp hit, and the air is efficiently purified by the photocatalyst activated by the light. As a result, an excellent purification capability can be obtained. In addition, since the present invention does not require a fan, it does not generate sound, is quiet at night, and can purify the air without disturbing sleep. In addition, it is convenient and economical because it can be immediately mounted on a light bulb or fluorescent lamp of a lighting fixture currently in use and can be used repeatedly. For this reason, it is very effective for purification of volatile organic compounds considered to be a causative substance of sick house syndrome and removal of malodor.

Sectional drawing which shows the state which mounted | wore the light bulb with the photocatalyst purification tool of Example 1. FIG. The top view which shows Example 1 of the photocatalyst purification tool of this invention. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. BB sectional drawing of FIG. Sectional drawing which shows the state which mounted | wore the straight tube | pipe fluorescent lamp with the photocatalyst purification tool of Example 2. FIG. The top view which shows Example 2 of the photocatalyst purification tool of this invention. The CC sectional view taken on the line of FIG. The DD sectional view taken on the line of FIG. Sectional drawing which shows the state which mounted | wore the annular fluorescent lamp with the photocatalyst purification tool of Example 3. FIG. The top view which shows Example 3 of the photocatalyst purification tool of this invention. EE sectional view taken on the line of FIG. Sectional drawing in the surface which passes the outermost part and innermost part of a ring of the photocatalyst purification tool of FIG. The enlarged view of a photocatalyst purification tool. The perspective view which shows the state which mounted | wore the straight tube | pipe type fluorescent lamp with the photocatalyst purification tool of Example 4. FIG. The top view which shows Example 4 of the photocatalyst purification tool of this invention. FF sectional view taken on the line of FIG. The GG sectional view taken on the line of FIG.

Explanation of sign

X Light Bulb Y Straight Tube Fluorescent Lamp Z Ring Fluorescent Light W Straight Tube Fluorescent Light 1 Photocatalytic Purifier 2 of Light Bulb 2 Light Emitting Section 3 Light Bulb Filament 4 Photocatalyst Purifier 5 of Example 5 Straight Tube Fluorescent Lamp Light-emitting part 6 Photocatalyst purification tool of Example 3 7 Light-emitting part of annular fluorescent lamp 8 Slit 9 Aluminum fiber 10 Photocatalyst 11 Photocatalyst purification tool of Example 4 12 Light-emitting part of straight tube fluorescent lamp

Claims (3)

A carrier made of a structure having cloth, non-woven fabric, honeycomb, sponge-like material or through-hole is formed into a shape along the whole or a part of the light emitting part of the lamp, and the photocatalyst is supported on the carrier. Photocatalytic purification tool. The photocatalyst purification tool according to claim 1, wherein the shape of the carrier is a bag shape, a cylindrical shape, or a shape lacking a part thereof. The photocatalyst purification tool according to claim 1, wherein the carrier is made of metal, ceramics, glass, or heat-resistant resin.

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