KR102228831B1 - Purifying lamp for environmental sanitation - Google Patents

Abstract

The present invention relates to a lamp for sterilizing and purifying environments. According to the present invention, the lamp comprises: a main body simultaneously including a stabilizer part for operating a spiral bulb and a driving unit for operating the COB (chip on board); the spiral bulb which is a near-ultraviolet (UV) lamp and has a photocatalyst coated on the outer surface thereof; the COB including a near-UV LED; and a purifier fixed on the upper side of the COB and having a photocatalyst coated thereon. Accordingly, air purification, dehumidification, sterilization, deodorization, and antifouling actions can be effectively performed by activation of the photocatalyst by near-UV and the near-UV spiral bulb and the near-UV LED can be turned on individually or simultaneously, or a white LED can be turned on independently or dependently depending on the type, state, and condition of a place requiring environmental hygiene so that high ease of use is provided by appropriate control of the degree of operation and efficient photocatalytic efficiency is provided, thereby being effectively applied to home, offices, hospitals, nursing home, gyms, livestock sheds, or henhouses.

Description

Lamp for environmental sanitation purification{PURIFYING LAMP FOR ENVIRONMENTAL SANITATION}

The present invention relates to a lamp for environmental sanitation purification, and more particularly, to a lamp for environmental sanitation purification including a near-ultraviolet LED, a purifier coated with a photocatalyst, and a spiral type black light bulb. By activation, air purification, dehumidification, sterilization, deodorization, and anti-fouling can be effectively performed, and thus, wastewater treatment facilities such as homes, offices, hospitals, fitness centers, or odor-causing facilities, pig houses, barns, Or, it relates to a lamp for environmental hygiene purification that can be effectively applied to houses, etc.

In recent years, due to the improvement of living standards and increasing interest in health, interest in comfortable and healthy indoor environmental hygiene is increasing.

However, indoor environmental hygiene is generated from adhesives and preservatives used in building interior materials, fungi or bacteria such as sofas and carpets, house dust mites, volatile organic compounds used in cleaning agents or bleaching agents, fragrances used in bathrooms, and cooking equipment such as gas ranges. It is seriously threatened by carbon monoxide, various nitrogen compounds, cigarette smoke, and increasingly fine dust.

Modern buildings such as apartments and buildings that are recently constructed adopt a central air conditioning system, and there is a trend that a mobile or fixed air conditioner is increasingly used in residential or office buildings that do not.

Most of the general central air conditioning systems or air conditioners are randomly combined with a scrubber, pre-filter, carbon filter, nonwoven filter, dust collector, etc. to remove contaminants such as fine dust particles, odor components, and bacteria in the air. Although it is collected and removed, HEPA (High Efficiency Particulate Air Filter) or ULPA (Ultra Low Penetration Air Filter) causes overload, so they are not widely applied except for biotechnology facilities such as semiconductor fabs and operating rooms. .

Since filters are used in these central air conditioning systems or air conditioners, filters need to be replaced or cleaned. If the Ulpa filter is not used, it is not possible to sterilize viruses such as Pandemic Covid 19, rather than viruses. There is a risk of spreading it in the air.

On the other hand, there is a problem that it is not practically possible to use such a central air conditioning system or air conditioner in a wastewater treatment facility, a facility that causes odor, or a pig house, barn, or cage. There is a problem that it is not easy to solve even though it affects the immunity of cattle or chickens, breeding rate, weight gain rate, meat quality, mortality rate, etc., and causes complaints from neighboring private houses.

In order to solve this problem, recently, a method of sterilizing, deodorizing, and antifouling by activating a photocatalyst by irradiating with ultraviolet rays has been proposed.

Photocatalyst reaction decomposes and denatures various pollutants and bacteria by irradiating the surface of the photocatalyst with ultraviolet rays to activate the photocatalyst, and decomposes organic or inorganic substances to remove odors, so it is independent of temperature and concentration of pollutants. .

A photocatalyst generates electrons and holes having a very strong reducing power and oxidizing power of absorbing ultraviolet radiation, in particular electrons second oxide anion by reaction with oxygen (O ₂ ^-) generated for the holes OH radical by the reaction with water Is created.

Ultraviolet rays used for excitation of photocatalysts are generally near ultraviolet rays (290~400nm), and as photocatalysts, TiO ₂ , ZnO, CdS, V ₂ O ₃ , GaP, InP, GaAs, BaTiO ₃ , KNbO ₃ , Fe ₂ O ₃ , Ta ₂ O ₃ , WO ₃ , SnO ₂ , Bi ₂ O ₃ , NiO, Cu ₂ O, SiO, SiO ₂ , MoS ₂ , InPb, RuO ₂ , CeO ₂ , SrTiO, a perovskite composite metal oxide _3, etc., and metals such as Pt, Rh, Ag, Cu, Sn, Ni, and Fe, and metal oxides thereof are added to the photocatalyst.

Among them, titanium dioxide (TiO ₂ ) is harmless to the human body, has excellent photocatalytic activity, has excellent chemical resistance and light corrosion resistance, has good coating adhesion, and is environmentally friendly and economical, so it is the most widely used.

On the other hand, as an ultraviolet irradiation means, a black light lamp or a near ultraviolet LED of 360 nm or 380 nm is used.

Here, the black light lamp is a cobalt glass tube that blocks visible light but transmits ultraviolet light through a phosphor such as calcium phosphate activated with selenium that emits near ultraviolet light by excitation of the spectral line 2537 Å of mercury emitted from the low-pressure mercury lamp. It is a lamp coated on the inner wall.

Typical conventional techniques for a lamp using such an ultraviolet ray and a photocatalyst include the following.

Unexamined Patent Publication No. 10-2016-0054731 (published on May 17, 2016) is a photocatalyst UV LED installed on a UV LED substrate, and a photocatalytic filter that is spaced apart from the UV LED substrate on a surface viewed by the UV LED for the photocatalyst. Including, the photocatalytic filter is a structure in which a plurality of cells in which an air flow path is formed in a direction facing the UV LED for the photocatalyst are adjacent and formed in parallel, and the height (h) of the photocatalyst filter is 2 to 15 By presenting an air purifier of mm, it is possible to deodorize, collect, and sterilize a small size so that it can be inserted into a vehicle cup holder, but its use is limited for vehicles and not for lamps.

On the other hand, Unexamined Patent Publication No. 10-2017-0114678 (published on Oct. 16, 2017) incorporates an ultraviolet LED that emits light energy in one side of a lighting device; And a power supply for driving the ultraviolet LED on one side of the lighting device; By launching an air purification LED lighting device using an ultraviolet LED in which a cover coated with a visible light emitting phosphor is applied in the range where the ultraviolet rays radiated from the ultraviolet LED are irradiated, the ultraviolet LED has an air purification function and lighting. It is used at the same time for functions, but it is only about sterilization by ultraviolet light and white illumination by phosphor, and is not related to deodorization or deodorization by photocatalyst, or decomposition of organic/inorganic substances.

Publication No. 10-2019-0121939 (published on Oct. 29, 2019) by the present applicant is a black light bulb that emits light in the ultraviolet A band and is 10-50 W, and a photocatalyst coated on the surface of the black light bulb. Including a layer, the photocatalyst layer is TiO ₂ , ZnO, RuO ₂ , CoO, Ce ₂ O ₃ , Cr ₂ O ₃ , Rh ₂ O ₃ , V ₂ O ₅ Oxide selected from or, ZnS, CdS selected sulfide Stirring any one or more photocatalyst compounds and SiO ₂ binders among the photocatalysts including, and applying a photocatalyst prepared in a sol state including alcohol as an organic solvent to the surface of each black light bulb in a thickness of 0.5-2.5 μm, It is formed by curing at 130~170℃ for 15~25 minutes, and the light in the band A of ultraviolet rays passes through the photocatalyst layer and is radiated through the photocatalyst layer, thereby activating the photocatalytic reaction to remove odors and bacteria. .

However, the prior art described above has a conventional black light bulb structure, except that the outer surface of the spiral-type glass tube is coated with a photocatalyst, and has air purification, dehumidification, sterilization, deodorization, and antifouling effects, but it is sufficiently satisfactory. It wasn't.

Unexamined Patent Publication No. 10-2016-0054731 (published on May 17, 2016) Unexamined Patent Publication No. 10-2017-0114678 (published on October 16, 2017) Unexamined Patent Publication No. 10-2019-0121939 (published on October 29, 2019)

A first object of the present invention is to provide a lamp for environmental hygiene purification capable of effectively performing air purification, dehumidification, sterilization, deodorization, and antifouling actions by activation of a photocatalyst by near ultraviolet rays.

A second object of the present invention is to provide a lamp for environmental hygiene purification that can be effectively applied to homes, nursing homes, hospitals, gyms, livestock houses or sheds.

A third object of the present invention is to provide a lamp for environmental sanitation purification capable of appropriately controlling the degree of operation according to the type, condition, and conditions of a place requiring environmental sanitation.

An object of the present invention as described above is a body for accommodating a ballast part for the operation of the spiral bulb and a driving unit for the operation of a COB (chip on board);
A cover and a socket of the upper and lower parts of the main body;
A spiral bulb electrically connected to the ballast part through the cover and coated with a photocatalyst on an outer surface thereof as a near-ultraviolet lamp;
A COB located at the center of the cover and including a near-ultraviolet LED;
A purifier fixed on the upper side of the COB by a holder and coated with a photocatalyst on at least an outer surface thereof, comprising:
Two through holes for inserting the spiral bulb are formed in the cover, and an opening for mounting the COB is formed in the central portion, and the COB and the purifier are fixed together to the cover by a holder having a plurality of holes,
The purifier is a polycarbonate molded product integrally formed with a base, a body, and a head, and the base is formed in an inverted funnel shape, and the head is formed in a hollow sphere in which a plurality of convex lenses or concave lenses are formed. A mirror area is formed inward at the circular end of one head, and the body is formed in a tube shape with a number of through holes or protrusions.
It can be achieved smoothly by the environmental sanitation purification lamp.

delete

delete

delete

Meanwhile, the above-described COB includes a white LED in addition to the near-ultraviolet LED, and may be operated independently or dependently depending on the selection of a spiral bulb, a near-ultraviolet LED, and a white LED.

delete

delete

The environmental hygiene purification lamp according to the present invention can effectively perform air purification, dehumidification, sterilization, deodorization, and antifouling effects by activating a photocatalyst by near ultraviolet rays, and the type, condition, and conditions of places where environmental hygiene is required. Accordingly, the near-ultraviolet spiral bulb and near-ultraviolet LED can be turned on individually or at the same time, or the white LED can be turned on independently or dependently, so it has high ease of use by appropriate control of the operating degree and shows efficient photocatalytic efficiency. Therefore, it can be effectively applied to home or office spaces, hospitals or nursing homes, fitness centers, livestock houses and cages.

1 is a cross-sectional view of an environmental sanitation purification lamp according to a first embodiment of the present invention.
2A to 2D are exemplary cross-sectional views of the photocatalytic coating purifier in FIG. 1.
3 is a plan view of FIG. 1.
FIG. 4 is an exemplary view showing a combination of a near-ultraviolet LED and a photocatalytic coating purifier in FIG. 1.
5 is a cross-sectional view of an environmental sanitation purification lamp according to a second embodiment of the present invention.
6 is a plan view of FIG. 5.
7 is a cross-sectional view of an environmental sanitation purification lamp according to a third embodiment of the present invention.
8 is an OES (Optical Emission Spectrophotometry) spectral diagram of an environmental sanitation purification lamp according to the first embodiment of the present invention.
9 to 11 are OES spectral diagrams of a lamp for environmental sanitation purification according to the first embodiment of the present invention using a TA (terephthalic acid) solution, respectively.
12 is a sterilization power test result of the environmental sanitation purification lamp according to the first embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a cross-sectional view of a lamp 1 for environmental sanitation purification according to a first embodiment of the present invention, FIGS. 2A to 2D are exemplary cross-sectional views of the photocatalytic coating purifier 10 in FIG. 1, and FIG. 3 is It is a plan view, and FIG. 4 is an exemplary diagram illustrating a state in which the near-ultraviolet LED and the photocatalytic coating purifier are combined in FIG.

The lamp 1 for environmental sanitation purification according to the first embodiment of the present invention includes a main body 2, a socket 4 under the main body 2 and a cover 3 at the upper part, and a spiral bulb 9 , A COB (chip on board) 10, and a purifier 20 extending outwardly from the above-described COB 10.

In the present invention, the spiral bulb 9 is a near-ultraviolet lamp called a black light bulb (BLB), and its outer surface is coated with a photocatalyst, and the outer surface and/or inner surface of the purifier 20 Edo is coated with a photocatalyst.

In addition, the COB 10 includes a near-ultraviolet LED 11, and may optionally include a white LED.

Inside the main body 2, the ballast circuit board 5 for the operation of the spiral bulb 9, various ballast parts 6, and a driving unit (SMPS: Switching Mode Power Supply) for the operation of the COB 10 ( 7) is located.

A stepped portion 2a is formed on the outer periphery of the upper end of the main body 2, and is coupled to the fastening portion 3a formed at the lower end of the outer periphery of the cover 3.

In the outer periphery of the cover 3, a plurality of heat dissipation holes 3b for dissipating heat radiated from the heat spreader 13 to the outside when the COB 10 is operated are positioned at predetermined intervals, and the cover ( In the upper part of 3), two through holes (3d) are formed for inserting the spiral bulb (9), and an opening (not shown) is formed in the central part for mounting the COB (10), and in a position adjacent to the periphery of the above opening. A fastening groove 3c for mounting the holder 14 is formed.

Both ends of the spiral bulb 9 are inserted into the connector 8 inside the main body 2 through the through hole 3d of the cover 3 and are electrically connected to the ballast component 6.

Meanwhile, the COB 10 includes a plurality of near-ultraviolet LEDs 11 mounted on the printed circuit board 12, and is fixed to the cover 3 by the holder 14.

A heat spreader 13 is located under the printed circuit board 12 of the COB 10, and the printed circuit board 12 is not limited, but a ceramic printed circuit board 12 is preferable in terms of heat dissipation efficiency. can do.

On the other hand, the purifier 20 is fixed together with the COB 10 on the upper side extending to the outside of the COB 10 by the holder 14, and a plurality of holes 14a are formed in the holder 14 By doing so, efficient heat dissipation may be achieved.

Since the above-described purifier 20 is coated with a photocatalyst on the outer surface and/or the inner surface, it is excited by near ultraviolet rays together with the photocatalyst on the outer surface of the spiral bulb 9, thereby purifying air synergistically, It performs dehumidification, sterilization, deodorization, and antifouling.

The purifier 20 is formed integrally with the base 21, the body 22, and the head 23, and the head 23 is formed in a hollow hollow spherical body, and the body 22 is hollow. It is formed in a tube shape and the base 21 is formed in an inverted funnel shape.

A hole 23a for heat dissipation is formed at the top of the head 23.

The purifier 20 may be a polycarbonate molded product.

In FIG. 1, the case of FIG. 2A in which the purifier 20 has a plurality of near-ultraviolet diffusion concave lenses 23b formed on the outer surface of the head 23 and the outer circumferential surface of the body 22 is smooth. However, if necessary, a plurality of convex lenses 23c for near-ultraviolet focused emission may be optionally formed on the outer surface of the head 23 as shown in FIG. 2B. As shown in FIG. 2C, the body 22 ) By forming a plurality of through-holes (22a) in the structure to help heat dissipation and purification efficiency, as shown in Figure 2d, to form a plurality of protrusions (22b) on the outer peripheral surface of the body (22). Also, the protrusion 22b may have various shapes such as a ring shape, an embossed shape, or a net shape.

In addition, the base 21 also serves to distribute and transmit the near-ultraviolet light irradiated from the near-ultraviolet LED to the outside. By forming the (mirror area) toward the inside, the near-ultraviolet rays can be dispersed.

In FIG. 1, the extension part 15 having the extension end 15a at the center of the above-described COB 10 is extended upwardly, and the front end LED 16 is installed on the extension end 15a. However, this is optional and not restrictive in the present invention.

The tip LED 16 may be a near-ultraviolet LED 11 or a white LED.

On the other hand, the above-described COB 10 may be composed of only the near-ultraviolet LED 11, but in some cases, it may be configured to include a white LED in addition to the near-ultraviolet LED 11, and the spiral bulb 9 and the near-ultraviolet ray It goes without saying that the LED 11, optionally a white LED, may be operated independently of each other, or may be operated simultaneously by arbitrarily combining them together.

Next, FIG. 5 is a cross-sectional view of an environmental sanitation purification lamp 1a according to a second embodiment of the present invention, and FIG. 6 is a plan view of FIG. 5.

The environmental sanitary purification lamp 1a according to the second exemplary embodiment of the present invention is essentially the same as the environmental sanitary purification lamp 1 according to the first exemplary embodiment, except for the configuration of the purifier 20. It will be described only, and for the rest of the configuration, refer to the description of the first embodiment.

The purifier 20 in the environmental sanitation purification lamp 1a according to the second embodiment is composed of a base 21 and a body 22 integrally formed, and the base 21 is formed with a flange, and the body (22) is formed in a cylindrical shape.

A fan 24 is installed on the upper portion of the cylindrical body, and a photocatalyst is coated on the lower portion thereof and spaced therefrom, and a carbon fiber nonwoven filter 25 having a plurality of through holes 25a is formed thereon.

In this case, although not shown, by forming a plurality of air intake holes (not shown) between the outer periphery of the COB 10 and the heat spreader 13 and the opening of the cover 23, the room of the cover 3 Purification efficiency may be further increased by introducing outside air to be purified through the hot hole 3b and forcibly blowing air to the fan 24 through the carbon fiber nonwoven filter 25.

If necessary, in addition to the photocatalyst coated carbon fiber nonwoven filter 25, various types of filters for air purification and deodorization, such as a pre-filter or an activated carbon filter, may be used in combination, and the body and wings of the fan 24 may also be used. It is also possible to further improve the purification efficiency by coating a photocatalyst, which is also within the scope of the present invention.

7 is a cross-sectional view of an environmental sanitation purification lamp 1b according to a third embodiment of the present invention, and is essentially the same as the environmental sanitation purification lamp 1 according to the first embodiment except for the configuration of the purifier 20 Therefore, only the purifier 20 will be briefly described.

In the illustrated example, the purifier 20 is composed of a plurality of bases 21, a body 22, and a head 23 integrally formed.

Each of the heads 23 described above is formed of a hemispherical convex lens, and the plurality of purifiers 20 are positioned in a circular shape at a predetermined distance along the edge of the COB 10.

Meanwhile, in the present invention, the coating of the photocatalyst may be formed by impregnating the photocatalyst or spraying or applying the photocatalyst.

Here, the photocatalyst is a material in the form of a sol formed by mixing a photocatalyst compound and a binder, and an organic solvent may be further mixed.

The photocatalyst may be a compound that is optically active while being a variety of metal oxides having semiconductor properties and does not have photocorrosion.

Specifically, the photocatalyst is at least one oxide selected from the group consisting _{of TiO 2} , ZnO, RuO ₂ , CoO, Ce ₂ 0 ₃ , Cr ₂ 0 ₃ , Rh ₂ 0 ₃ , and V ₂ 0 _{5 and the like,} A photocatalyst made of at least one sulfide selected from ZnS and CdS, a SiO ₂ binder, and an alcohol as an organic solvent may be stirred to prepare a sol state.

In addition, the photocatalyst is included in an amount of 3.0 to 7.0 wt% based on the total weight of the sol-like material with an average particle diameter of 5 to 10 nm, and may have a specific gravity of 0.85 to 0.98, for example, a concentration of 5.0 wt% and a specific gravity of 0.95. have.

The coating thickness of the photocatalyst is controlled in the range of 0.5 to 2.5 μm, preferably in the range of 1.0 to 2.0 μm, and the curing of the photocatalyst sol is allowed to stand at room temperature for 10 to 14 hours, or at 130 to 170° C. for 15 to 25 minutes. It can be cured by heating.

The environmental sanitation purification lamp according to the present invention can be efficiently applied to livestock farms, air pollution areas, infant residence spaces, school education facilities, hospitals, nursing homes, gyms, and the like.

8 is an OES (Optical Emission Spectrophotometry) spectroscopy (0.005 s irradiation) of an environmental sanitation purification lamp (however, an extension part and a tip LED are not installed) according to the first embodiment of the present invention.

9 to 11 are OES spectral diagrams of a lamp for environmental sanitation purification according to the first embodiment of the present invention using a TA (terephthalic acid) solution, respectively.

Tests were 2-hydroxyterephthalic acid 97% (Sigma-Aldrich), terephthalic acid (C ₆ H ₄ -1,4-(CO ₂ H) ₂ (Sigma-Aldrich) UV-visible optical fiber line (Ocean Optics, P/N QP600). -025-SR), LED (Ocean Optics, Model: LSM-310A LED) LED light source (Ocean Optics, Model: LDC-1C), Cuvette Holder (Ocean Optics, CUV-ALL-UV Cuvette Holder), Water (H ₂ O ₂ , Samchun), and Miniature spectrometer (rgb photonics, Q mini) were used, and in the environmental sanitation purification lamp of the present invention, the photocatalyst absorbs ultraviolet rays to generate holes, and the holes react with water. By using the point of generating OH radicals, it is understood that non-fluorescent terephthalic acid reacts with OH radicals to form 2-hydroxyterephthalic acid, and the above-described 2-hydroxyterephthalic acid exhibits fluorescence of 425 nm when absorbed by UV at 310 nm. Was used.

In the experiment, a cuvette filled with water was installed on a magnetic stirrer, and air was transferred through the box in which the lamp for environmental sanitation purification of the present invention was installed using a pump, and a 310nm light source connected to an optical fiber and a spectrophotometer connected to an optical fiber were installed on the side of the cuvette. It was measured.

9 is an OES spectroscopy of water in contact with air passing through a lamp for environmental hygiene purification in a terephthalic acid solution at intervals of 5 minutes for 30 minutes (when irradiated for 30 minutes, OH radicals are ^{confirmed to be about 10 6} /cc), and FIG. 10 Is an OES spectrogram measuring water obtained by bubbling air passing through a lamp for environmental hygiene purification in a terephthalic acid solution for 30 minutes (when irradiated for 30 minutes, OH radicals are about 1.2 x 10 ⁶ /cc), and Figure 11 is a pump not used. ^{It is an OES spectroscopy (about 10 6} /cc of OH radicals is confirmed when irradiated for 30 minutes) of water in contact with 1.5 slm of air at intervals of 5 minutes for 20 minutes.

On the other hand, Figure 12 is a sterilization power test result of the lamp for environmental sanitation purification according to the first embodiment of the present invention.

In the above, the present invention has been described through preferred embodiments, but those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, but this is also within the scope of the present invention.

1,1a,1b: lamp for environmental sanitation purification according to the present invention
2: main body 2a: stepped portion
3: cover
3a: fastening part 3b: heat dissipation hole
3c: fastening groove 3d: through hole
4: socket
5: ballast circuit board 6: ballast parts
7: drive unit (SMPS) 8: connector
9: Spiral bulb
10: COB (chip on board)
11: (near ultraviolet) LED 12: printed circuit board
13: heat spreader 14: holder
14a: hole 15: extension
15a: extension end 16: tip LED
20: purifier
21: base 22: body
22a: through hole 22b: protrusion
23: head 23a: hole
23b: concave lens 23c: convex lens
24: fan 25: filter
25a: through hole

Claims (7)

A main body accommodating a ballast component for operating the spiral bulb and a driving unit for operating a chip on board (COB);
A cover and a socket of the upper and lower parts of the main body;
A spiral bulb electrically connected to the ballast part through the cover and coated with a photocatalyst on an outer surface thereof as a near-ultraviolet lamp;
A COB located at the center of the cover and including a near-ultraviolet LED;
A purifier fixed on the upper side of the COB by a holder and coated with a photocatalyst on at least an outer surface thereof, comprising:
Two through holes for inserting the spiral bulb are formed in the cover, and an opening for mounting the COB is formed in the central portion, and the COB and the purifier are fixed together to the cover by a holder having a plurality of holes,
The purifier is a polycarbonate molded product integrally formed with a base, a body, and a head, and the base is formed in an inverted funnel shape, and the head is formed in a hollow sphere in which a plurality of convex lenses or concave lenses are formed. A mirror area is formed inward at the circular end of one head, and the body is formed in a tube shape with a number of through holes or protrusions.
Lamp for environmental sanitation purification. delete delete delete According to claim 1, wherein the COB includes a white LED in addition to the near-ultraviolet LED, a spiral bulb, a near-ultraviolet LED and a white LED can be operated independently or dependently depending on the selection of the environmental sanitation purification lamp. delete delete

Images