U.S. patent application number 17/148969 was filed with the patent office on 2022-03-24 for air sterilization lamp device.
The applicant listed for this patent is S.M.Doctor Co.,Ltd. Invention is credited to changho Lee.
Application Number | 20220088258 17/148969 |
Document ID | / |
Family ID | 1000005370355 |
Filed Date | 2022-03-24 |
United States Patent
Application |
20220088258 |
Kind Code |
A1 |
Lee; changho |
March 24, 2022 |
AIR STERILIZATION LAMP DEVICE
Abstract
An air sterilization lamp device according to an embodiment of
the present disclosure includes a body in which an intake fan is
installed and which suctions outside air through an intake hole
provided in the outer surface thereof and is coated with a coating
solution containing a photocatalytic material, a lamp which is
connected to and installed in the body and through which the
outside air suctioned into the body is introduced, and a light
emitting source installed inside the lamp and configured to emit
light by power supplied from the body. According to the present
disclosure, an air sterilization lamp device that can purify indoor
air through a function of removing to generated fine dust and
performing sterilization treatment as the lamp coated with the
coating solution containing the photocatalytic material is
irradiated with light, and can simultaneously function as lighting
is provided.
Inventors: |
Lee; changho; (Gyeonggi-do,
KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
S.M.Doctor Co.,Ltd |
Gyeonggi-do |
|
KR |
|
|
Family ID: |
1000005370355 |
Appl. No.: |
17/148969 |
Filed: |
January 14, 2021 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A61L 2209/12 20130101;
A61L 9/18 20130101 |
International
Class: |
A61L 9/18 20060101
A61L009/18 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 22, 2020 |
KR |
10-2020-0122158 |
Claims
1. An air sterilization lamp device comprising: a body having an
intake hole and an intake fan provided therein and configured to
take in outside air through the intake hole provided on an outer
surface thereof; a lamp connected to and installed on the body, the
lamp through which the outside air taken in by the body is
introduced, a surface of the lamp coated with a photocatalytic
material comprising titanium dioxide (TiO.sub.2) doped with
nitrogen (N) and nickel (Ni), the photocatalytic material produced
by injecting nickel(II) chloride hexahydrate (NiCl.sub.2.6H.sub.2O)
and ammonium carbonate (NH.sub.4).sub.2CO.sub.3 into a titanium
dioxide (TiO.sub.2) sol and stirring NiCl.sub.2.6H.sub.2O and
NH.sub.4).sub.2CO.sub.3 injected into the titanium dioxide
(TiO.sub.2) sol, the titanium dioxide (TiO.sub.2) sol produced by
reacting a mixed solution of a titanium tetra isopropoxide
solution, diethanolamine, and 2-propanol while stirring the mixed
solution at room temperature; a light emitting source installed
inside the lamp and emitting light by power supplied from the body;
and a filter installed at a connection portion between the body and
the lamp.
2. The air sterilization lamp device of claim 1, wherein the filter
is coated with a photocatalytic material.
3. The air sterilization lamp device of claim 1, wherein the
surface of the lamp is heat-treated at heating temperature of
100.degree. C. to 150.degree. C. after the photocatalytic material
has been applied to the surface of the lamp.
4. The air sterilization lamp device of claim 1, further
comprising: an upper housing to which one end of the light emitting
source is fixed, the upper housing having an input part and a
display part; a lower housing to which the other end of the light
emitting source is fixed; and a filter installed in the lower
housing.
5. The air sterilization lamp device according to claim 1, wherein
the body includes a sensor for measuring a concentration of fine
dust and a concentration of a volatile organic compound, and the
air sterilization lamp device is configured to remove the fine dust
and the volatile organic compounds inside the lamp by the light
irradiated from said lamp portion.
6. The air sterilization lamp device of claim 1, wherein a surface
of the lamp is formed of a polycarbonate material coated with the
photocatalytic material.
7. The air sterilization lamp device of claim 1, wherein the lamp
is irradiated with light having a wavelength in the range of 580 nm
to 640 nm from the surface of the lamp.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims the benefit under 35 USC .sctn.
119(a) of Korean Patent Application No. 10-2020-0122158 filed on
Sep. 22, 2020, in the Korean Intellectual Property Office, the
entire disclosure of which is incorporated herein by reference for
all purposes.
BACKGROUND
1. Field of the Invention
[0002] The present disclosure relates to an air sterilization lamp
device, and more particularly, to an air sterilization lamp device
by which indoor air is purifiable through a function of removing
generated fine dust and performing sterilization treatment as a
lamp coated with a coating solution containing a photocatalytic
material is irradiated with light and, at the same time, which is
functional as a lighting device.
2. Discussion of Related Art
[0003] In recent years, the use of air purifiers in homes, offices,
hospitals, and the like is rapidly increasing due to an increase in
air pollution and fine dust. However, air purifiers according to
the related art have a technical limitation in that the air
purifier performs only a function of purifying air through a
built-in physical and chemical filter and cannot provide additional
functions such as indoor lighting and air sterilization.
[0004] Meanwhile, most lighting devices used for indoor lighting
effects have technical limitations in that the lighting devices
perform only functions of indoor lighting and interior decoration
but cannot provide additional functions such as air purification
and sterilization treatment.
SUMMARY
[0005] An aspect of the present disclosure is to provide an air
sterilization lamp device capable of purifying indoor air through a
function of removing generated fine dust and performing
sterilization treatment as a lamp coated with a coating solution
containing a photocatalytic material is irradiated with light and,
at the same time, serving as a lighting device.
[0006] In order to achieve the aspect, an air sterilization lamp
device according to the present disclosure includes: a body in
which an intake fan is installed and which suctions outside air
through an intake hole provided in an outer surface of the body; a
lamp which is connected to and installed in the body and through
which the outside air suctioned into the body is introduced; and a
light emitting source installed inside the lamp and configured to
emit light by power supplied from the body.
[0007] The air sterilization lamp device may further include a
filter installed between the body and the lamp and coated with a
photocatalytic material.
[0008] The air sterilization lamp device may further include an
input part through which an operation command of a user for the air
sterilization lamp device is input.
[0009] A sensor configured to measure the concentration of fine
dust in the outside air introduced through the intake hole and
configured to measure the concentration of volatile organic
compounds contained in the outside air may be installed in the
body.
[0010] The surface of the lamp may be heat-treated after being
coated with a solution containing a photocatalytic material, and
the surface of the lamp may be irradiated with light having a
wavelength of 580 nm to 640 nm through the coating treatment.
[0011] The fine dust and the volatile organic compounds contained
in the outside air introduced through the intake hole inside the
lamp may be removed by the light with which the surface of the lamp
is irradiated.
[0012] The photocatalytic material may contain titanium
dioxide.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The above and other objects, features and advantages of the
present disclosure will become more apparent to those of ordinary
skill in the art by describing exemplary embodiments thereof in
detail with reference to the accompanying drawings, in which:
[0014] FIG. 1 is a perspective view of an air sterilization lamp
device according to an embodiment of the present disclosure;
[0015] FIG. 2 is a vertical sectional view illustrating an internal
structure of the air sterilization lamp device according to the
embodiment of the present disclosure;
[0016] FIG. 3 is a view for describing a phenomenon occurring when
a photocatalytic material is irradiated with visible light
according to the embodiment of the present disclosure; and
[0017] FIG. 4 is a view illustrating structures of an input part
and a display part of the air sterilization lamp device according
to the embodiment of the present disclosure.
DETAILED DESCRIPTION
[0018] Hereinafter, the present disclosure will be in more detail
with reference to the accompanying drawings. It should be noted
that the same components in the drawings are indicated by the same
reference numerals wherever possible. Further, the detailed
description of well-known functions and configurations, which may
make the subject matter of the present disclosure unclear, will be
omitted.
[0019] FIG. 1 is a perspective view of an air sterilization lamp
device according to an embodiment of the present disclosure, and
FIG. 2 is a vertical sectional view illustrating an internal
structure of the air sterilization lamp device according to the
embodiment of the present disclosure.
[0020] Referring to FIGS. 1 and 2, the air sterilization lamp
device according to the embodiment of the present disclosure
includes a body 110, a lamp 120, a light emitting source 130, an
input part 140, a display part 150, and a filter 160.
[0021] An intake fan 113 is installed inside the body 110, and as
the intake fan 113 is driven, outside air is introduced into the
body 110 through an intake hole 111 provided in the outer surface
(for example, the bottom surface) of the body 110.
[0022] Further, in the implementation of the present disclosure, it
is preferable that a sensor configured to measure a concentration
of fine dust in the outside air introduced through the intake hole
111 and a sensor configured to measure the concentration of organic
compounds contained in the outside air are installed in the body
110.
[0023] The lamp 120, which is a transparent or translucent
cylindrical structure in which the light emitting source 130 is
installed, is connected to and installed on an upper portion of the
body 110, and the outside air suctioned into the body 110 through
the intake hole 111 is primarily purified while passing through the
filter 160 installed at a connection portion between the body 110
and the lamp 120, and is then introduced into the lamp 120.
[0024] Meanwhile, in the implementation of the present disclosure,
the lamp 120 may be a cylindrical structure having various shapes
such as a cylindrical shape and a semi-cylindrical shape.
[0025] As the light emitting source 130, such as a light emitting
diode (LED), which emits light by power supplied from the body 110,
is installed in the inner center of the lamp 120 in a lengthwise
direction of the lamp 120, the lamp 120 functions as a lamp housing
that radiates the light irradiated from the internal light emitting
source 130 to the outside.
[0026] Meanwhile, as illustrated in FIG. 2, the light emitting
source 130 manufactured in a bar shape has one end fixedly
installed in an upper housing 170 in which the input part 140 and
the display part 150 are installed and has the other end fixedly
installed in a lower housing 180 in which the filter 160 is
installed.
[0027] It is preferable that the lamp 120 is made of a
polycarbonate material, and it is preferable that the inner surface
and the outer surface of the lamp 120 are coated with a coating
solution, which is a solution containing a photocatalytic material,
and are then heat-treated.
[0028] In detail, the photocatalytic material contained in the
coating solution according to the embodiment of the present
disclosure may be N- and Ni-codoped TiO.sub.2 (NNT) prepared
through a sol-gel reaction as a photosensitive photocatalytic
material for visible light.
[0029] In detail, in order to prepare an NNT photocatalyst, the
present inventor allowed a mixed solution of a 0.1M titanium tetra
isopropoxide solution (St. Louis, Mo., 99%), 1.2M diethanolamine
(Sigma, St. Louis, Mo., 99%), and 800 mL of 2-propanol (Duksan,
Ansan, 98.5%) to react while stirring the mixed solution at room
temperature for about 5 hours to obtain a TiO.sub.2 sol, and
injected nickel(II) chloride hexahydrate (NiCl.sub.2.6H.sub.2O;
Wako, Osaka, Japan, 98%) into the sol.
[0030] Meanwhile, by adjusting the amount of injected nickel(II)
chloride hexahydrate (NiCl.sub.2.6H.sub.2O; Wako, Osaka, Japan,
98%), the amount of Ni was made to be 2% based on the mass of
TiO.sub.2 in the solution, and the mixture produced in this way was
stirred at room temperature for about 5 hours.
[0031] For N-doping, 0.05M ammonium carbonate
((NH.sub.4).sub.2CO.sub.3, Samcheon, Seoul, Korea, 30.0%) was
injected and stirred for 12 hours to obtain an NNT sol.
[0032] In detail, TiO.sub.2 as a photocatalyst was codoped with
nitrogen (N) ions and metal (Ni) ions, and thus the physicochemical
properties and optical properties of TiO.sub.2 can be improved. In
detail, chemically stable TiO.sub.2 was codoped with nitrogen (N)
ions and metal (Ni) ions, and thus a band gap can be reduced.
[0033] Further, NNT nanocrystals prepared in this way have a
property of absorbing ultraviolet light and visible light having
wavelengths of up to about 600 nm and have excellent visible light
sensitivity, and thus energy consumption of a light source in a
photocatalytic reaction can be reduced.
[0034] Meanwhile, in relation to this, FIG. 3 illustrates a
phenomenon that occurs when the photocatalytic material according
to the embodiment of the present disclosure is irradiated with
visible light.
[0035] It is preferable that a dip coating method is used when the
surface of the lamp 120 made of polycarbonate is coated with the
NNT. In detail, dip coating may be performed by immersing the lamp
120 in the NNT, which is a photocatalyst in a sol state, and then
slowly pulling the lamp 120 upward so that an NNT coating film is
formed on the inner and outer surfaces of the lamp 120.
[0036] It is preferable that after such coating treatment, the lamp
120 is dried at room temperature for about 12 hours, and the coated
thin film is then dried at 130.degree. C. in a dryer such as an
oven.
[0037] Meanwhile, since the glass transition temperature of the
polycarbonate is 147.degree. C., and thus the heat resistance
thereof is not good, it is preferable that the drying treatment is
performed at a temperature lower than the glass transition
temperature (147.degree. C.).
[0038] As described above, as the surface of the lamp 120 made of
polycarbonate is coated with the NNT, degradation of the
polycarbonate due to ultraviolet absorption can be suppressed,
contaminants on the surface of the lamp 120 can be photodecomposed,
and indoor air can be purified and fine dust can be removed through
a photocatalytic reaction of the thin film coated NNT.
[0039] Meanwhile, the present inventor confirmed that in a state in
which power is supplied to the light emitting source 130 and the
lamp 120 is irradiated with light, Escherichia coli, Staphylococcus
aureus, and Pseudomonas aeruginosa are sterilized on the inner and
outer surfaces of the lamp 120 coated as described above, and
confirmed that formaldehyde (HCHO) is decomposed in the inner space
and the outer space of the lamp 120.
Experimental Example
[0040] In detail, the present inventor tested formaldehyde removal
performance in a state in which the lamp 120 coated with the NNT
was emitting light as described above.
[0041] In detail, the present inventor produced a gas-phase test
box having a width of 35 cm, a length of 50 cm, and a height of 30
cm, and the initial concentration of formaldehyde (Duksan, Ansan,
Korea, 40%) measured using gas chromatography equipment in a state
in which the formaldehyde was injected into the gas-phase test box
was 150 ppm.
[0042] Thereafter, as the lamp 120 coated as described above was
installed inside the corresponding gas-phase test box and power was
supplied to the lamp 120, a light emitting state was
maintained.
[0043] The present inventor confirmed that the concentration of
formaldehyde decreased by about 45% after 1 hour of light emission
of the lamp 120, and confirmed that the concentration of
formaldehyde decreased by about 90% after 2 hours.
[0044] In addition, according to the present disclosure, as the
coating solution having the above-described component is applied to
the surface of the lamp 120 made of polycarbonate, conventional
wavelength attenuation of light generated while light is radiated
to the outside through the lamp 120 does not occur, and thus
wavelength characteristics of the lamp 120 can be improved.
[0045] In detail, as a result of an experiment conducted in a state
in which the coating solution having the above-described component
was applied to the surface of the lamp 120 made of polycarbonate,
the present inventor confirmed that light, which was irradiated
from a light source such as an LED installed inside the lamp 120
and had a wavelength in the range of 580 nm to 640 nm, which is a
visible light region, was measured to have the same wavelength
range (580 nm to 640 nm) even when the light was measured outside
the surface of the lamp 120.
[0046] In more detail, as a result of an experiment conducted in a
state in which the coating solution having the above-described
component was applied to the surface of the lamp 120 made of
polycarbonate and the light source such as the LED that irradiates
light having a dominant wavelength of 601 nm in the wavelength
range was installed in the lamp, the present inventor confirmed
that the light was measured to have the same wavelength (601 nm)
even when the light was measured outside the surface of the lamp
120.
[0047] Further, the coating solution according to another
embodiment of the present disclosure may include 4 to 15 parts by
weight of the NNT, 30 to 40 parts by weight of an alkoxide, and 45
to 55 parts by weight of ethanol.
[0048] The NNT and the alkoxide, which are photocatalytic materials
contained in the coating solution, decrease nitrogen oxides, sulfur
oxides, ammonia, and volatile organic compounds that are causative
substances that generate fine dust (PM2.5) according to the light
emission of the lamp 120, thereby purifying air in an interior in
which a lighting device according to the present disclosure is
installed.
[0049] Meanwhile, the ethanol contained in the above-described
coating solution functions to improve adhesion of the NNT and the
alkoxide, which are photocatalytic materials, to the surface of the
lamp 120 made of polycarbonate during the coating process.
[0050] In detail, a manufacturer evenly applies the coating
solution having the above-described component according to another
embodiment of the present disclosure to the surface of the lamp 120
made of polycarbonate, and then heat-treats the surface of the lamp
120 at a predetermined heating temperature (for example, about
100.degree. C. to 150.degree. C.) for a predetermined time (for
example, about 3 to 4 hours), thereby performing a coating
treatment operation of the photocatalytic material on the surface
of the lamp 120.
[0051] Meanwhile, the input part 140 is installed on an upper
portion of the lamp 120, and a user inputs various operation
commands for the air sterilization lamp device through the input
part 140.
[0052] FIG. 4 is a view illustrating structures of an input part
and a display part of the air sterilization lamp device according
to the embodiment of the present disclosure. As illustrated in FIG.
4, the input part 140 includes a plurality of input buttons through
which the operation commands of the user for the air sterilization
lamp device are input.
[0053] In detail, as illustrated in FIG. 4, it is preferable that
the input part 140 includes a power button 141, a sleeping mode
button 142, an intake fan operation button 143, an automatic
operation button 144, a Wi-Fi module activation button 145, a lock
button 146, and a timer button 147 for the air sterilization lamp
device.
[0054] Meanwhile, the display part 150, which is a display device
for displaying an operation state of the air sterilization lamp
device, may be installed in the center of the input part 140 as
illustrated in FIG. 4, and the display part 150 may additionally
display a measurement value of the concentration of fine duct and a
measurement value of the concentration of an organic compound,
which are measured through a sensor provided in the body 110.
[0055] In addition, the input part 140 is installed on the upper
portion of the lamp 120, and thus functions as an upper cover of
the lamp 120 having a cylindrical structure. Meanwhile, an exhaust
hole 148 is formed in the input part 140, and thus the outside air
subjected to fine dust removal and sterilization treatment as
described above while passing through the inside of the lamp 120 is
supplied back to the outside through the exhaust hole 148.
[0056] In addition, it is preferable that in the implementation of
the present disclosure, the filter 160 is also heat-treated in the
same manner as the lamp 120 after being coated with the coating
solution, which is a solution containing the photocatalytic
material as described above.
[0057] According to the present disclosure, an air sterilization
lamp device that can purify indoor air through a function of
removing generated fine dust and performing sterilization treatment
as a lamp coated with a coating solution containing a
photocatalytic material is irradiated with light and, at the same
time, can function as a lighting device is provided.
[0058] Terms used in the present disclosure are used only to
describe specific embodiments and are not intended to limit the
present disclosure. Singular expressions include plural expressions
unless clearly otherwise indicated in the context. It should be
understood in the present application that terms such as "include"
or "have" are intended to indicate that there are features,
numbers, steps, operations, components, parts, or combinations
thereof that are described in the specification, and do not exclude
in advance the possibility of the presence or addition of one or
more other features, numbers, steps, operations, components, parts,
or combinations thereof.
[0059] Although the exemplary embodiments and application examples
of the present disclosure have been illustrated and described
above, the present disclosure is not limited to the above-described
specific embodiments and application examples. It is obvious to
those skilled in the art to which the present disclosure belongs
that various modifications can be made without departing from the
spirit of the present disclosure. These modifications should not be
individually understood from the technical spirit or perspective of
the present disclosure.
* * * * *