KR102258324B1 - Air sterilizing device - Google Patents

Abstract

Disclosed is an air sterilizing device capable of sterilizing and providing air through a photocatalytic reaction, which comprises: a housing having an inlet and an outlet for air, and a sterilization space for sterilizing the air introduced into the inlet; a suction fan installed in the housing to introduce external air into the sterilization space through the inlet to communicate with the outlet; a light source unit installed in the housing to provide a light source to the sterilization space; at least one ceramic filter unit installed adjacent to the light source unit to communicate air through pores, sterilize air through a catalytic reaction by a light source of the light source unit while filtering contaminants in the air, and pass the light from the light source unit through the pores; a PCO coating layer coated on an inner surface of the housing forming the periphery of the sterilization space to sterilize air while causing a catalytic reaction by the light source of the light source unit; and a reflection unit installed in the sterilization space to provide reflected light to the ceramic filter unit or the PCO coating layer while reflecting the light source of the light source unit.

Description

Air sterilization device {AIR STERILIZING DEVICE}

The embodiments disclosed herein relate to an air sterilization device, and more particularly, to an air sterilization device capable of sterilizing and providing air through a photocatalytic reaction.

As industrialization progresses and urbanization and population density accelerate, the problem of air pollution that humans need to breathe every day is becoming more serious. Fossil fuels used by humans inevitably release pollutants harmful to humans into the air. As the concentration of pathogenic microscopic substances such as viruses and bacteria is increasing in the air, the desire of humans to breathe clean air is getting stronger.

An air purifier or an air sterilizer is a device used to satisfy these needs.

In general, air purifiers or sterilizers that are currently widely used can be broadly divided as follows.

First, the air in the space to be purified is sucked through a filter, and pollutants in the air are adsorbed or decomposed by the filter, which is the most commonly used method.

If this method is used for a long time, it must be accompanied by a maintenance action that must be replaced with a new filter on a regular basis, and since the characteristics of the filter are not complete, the reliability of the air purification ability by this method is not high.

Second, by using an ion generator to increase the concentration of ions in the air, the air purifier currently using this method generates only negative ions, and the effect of purification or sterilization by negative ions can be expected to some extent. There is a problem that the amount of negative ions released is not accurately known, and the effect related to the active removal of airborne bacteria in the air is not very high.

The third method is to use plasma cluster ion technology, which uses plasma ion air purification technology that uses plasma charges, which generates negative ions and cations in the air to decompose harmful substances through chemical reactions with harmful substances in the air. It is inactivated to purify the air.

However, the air purification process by this method has not yet been able to accurately reveal the chemical mechanism of PCI behavior, and since it is not possible to accurately analyze the amount of ions generated, the reliability of the sterilization effect is low, so it is still positive from a microbiological point of view. However, the negative effects have not been fully identified.

As a fourth method, there is a method using a photocatalyst as in the air sterilization purification apparatus disclosed in Korean Patent Publication No. 10-1386404.

In general, a photocatalyst refers to a material that receives light and promotes a chemical reaction, and a representative example is titanium dioxide.

When the light is directed toward such titanium dioxide, electrons and holes are created on the surface, and electrons react with oxygen on the surface of the photocatalyst to create superoxide anions, and holes react with moisture existing in the air to create hydroxy radicals. do.

At this time, the generated hydroxy radicals have excellent ability to oxidize and decompose powerful organic substances, so they decompose odor substances, viruses, and bacteria such as bacteria, which are always present in the air, and change them into water and carbon dioxide.

For this reason, photocatalytic reactions are mainly used in environmental purification processes to effectively remove pollutants.

However, the photocatalytic air sterilization apparatus according to the prior art has a limit in the sterilization performance of air since the photocatalyst material is provided only in the filter.

Therefore, there is a need for a technique for solving the above-described problem.

On the other hand, the above-described background technology is technical information that the inventor possessed for derivation of the present invention or acquired during the derivation process of the present invention, and is not necessarily a known technology disclosed to the general public prior to filing the present invention. .

The embodiments disclosed in the present specification are to provide an air sterilization apparatus capable of further improving sterilization performance by sterilizing air through a photocatalytic reaction and allowing a photocatalytic reaction to occur not only on the filter but also on the inner surface of the housing. .

In addition, the embodiments disclosed in the present specification are to provide an air sterilization apparatus capable of promoting a smooth photocatalytic reaction through diffusion of the light source by providing a light source provided from the light source unit by reflecting it inside the sterilization space.

In addition, the embodiments disclosed in the present specification are to provide an air sterilization apparatus capable of adjusting the angle of reflected light according to the output of a suction fan that sucks air.

In addition, the embodiments disclosed in the present specification may improve air sterilization and filtration performance by configuring a plurality of ceramic filter units, and an air sterilization device capable of adjusting the size of an air communication path by moving each filter in a horizontal direction. Its purpose is to provide.

As a technical means for achieving the above-described technical problem, according to an embodiment of the air sterilization apparatus, an inlet and an outlet of air are provided, and a sterilization space in which air introduced through the inlet is sterilized is formed; A suction fan installed in the housing to introduce external air into the sterilization space through the inlet and communicate with the outlet; A light source unit installed in the housing to provide a light source to the sterilization space; It is installed adjacent to the light source to communicate air through the pores, filter pollutants in the air, sterilize the air through a catalytic reaction by the light source of the light source, and pass the light of the light source through the pores. At least one ceramic filter unit; A PCO (Photo Catalytic Oxidation) coating layer that is coated on the inner surface of the housing forming the outer side of the sterilization space and sterilizes air while causing a catalytic reaction by the light source of the light source unit; And a reflective unit installed in the sterilization space to reflect the light source of the light source unit and provide the reflected light as the ceramic filter unit or the PCO (Photo Catalytic Oxidation) coating layer.

In addition, the reflecting unit may include an aluminum film installed in the sterilization space and disposed above the ceramic filter unit to reflect the light source of the light source unit; And a reflection angle controller that provides an installation space for the aluminum film and allows adjustment of the reflection angle of the aluminum film according to the operation of the suction fan.

In addition, the reflection angle adjuster is formed in an angle-shaped cross section and has two installation surfaces and is rotatably installed in the sterilization space, and the aluminum film is installed on one of the two installation surfaces to allow the suction It may include a reflection angle that rotates according to the pressure of the air by the fan.

In addition, in the reflection angle, the PCO (Photo Catalytic Oxidation) coating layer may be formed on the other installation surface of the two installation surfaces.

In addition, the reflection angle adjuster may further include a rotation motor that operates according to the output of the suction fan to adjust the angle of the aluminum film while rotating the reflection angle.

In addition, in the reflection angle, the PCO coating layer may be formed on the other installation surface of the two installation surfaces.

In addition, the light source unit, a plurality of LED lamps for providing a light source by power; And a lamp holder disposed between the suction fan and the ceramic filter unit to receive the LED lamps, and forming a communication path for communicating air from the suction fan to the ceramic filter unit.

In addition, the PCO (Photo Catalytic Oxidation) coating layer is formed in a nano-sized titanium dioxide layer catalytic reaction by a light source; And an inorganic binder layer that adheres and fixes the titanium dioxide layer to the inner surface of the housing.

In addition, the ceramic filter unit may be configured in plural and installed in the stacked state in the vertical direction of the sterilization space, and the pores of each filter may communicate with each other to form a communication path for air.

In addition, the plurality of ceramic filter units may be installed to be movable in a horizontal direction of the sterilization space, and the size of the communication path may be adjusted through horizontal movement of each filter.

According to any one of the above-described problem solving means, it is possible to provide an air sterilization apparatus capable of further improving sterilization performance by allowing photocatalytic reaction to occur through the PCO coating layer as well as filtration and sterilization by the photocatalytic reaction of the ceramic filter unit. .

In addition, according to any one of the above-described problem solving means, the aluminum film constituting the reflecting unit is installed in the sterilization space, so that the light source provided from the light source unit is reflected from the inside of the sterilization space to provide a smooth photocatalytic reaction of the PCO coating layer or ceramic filter unit. It is possible to propose an air sterilization device that can be planned.

In addition, according to any one of the above-described problem solving means, the reflective angle to which the aluminum film is attached is rotated by the air pressure by the suction fan and adjusts the angle of the aluminum film, so when the air pressure is low, the reflected light is provided to the PCO coating layer. When the air pressure is high, an air sterilization device capable of providing reflected light to the ceramic filter unit may be provided.

In addition, according to any one of the above-described problem solving means, when a rotation motor is provided in the reflection angle controller, an air sterilization device in which the angle of the reflection hanger can be arbitrarily adjusted by forcibly rotating the reflection angle by the rotation motor is provided. I can.

In addition, according to any one of the above-described problem solving means, a plurality of ceramic filter units are configured to improve air sterilization and filtration performance, and since each filter moves in a horizontal direction, the pores of each filter move in a horizontal direction. It is possible to provide an air sterilization device in which the size can be arbitrarily adjusted through the communication of air through the pores.

The effects that can be obtained in the disclosed embodiments are not limited to the above-mentioned effects, and other effects not mentioned are obvious to those of ordinary skill in the art to which the embodiments disclosed from the following description belong. It will be understandable.

1 is a perspective view showing an air sterilization apparatus according to an embodiment.
2 is a block diagram showing the configuration of an air sterilization apparatus according to an embodiment.
3 is a block diagram showing an operating state of a reflector of the air sterilization apparatus according to an exemplary embodiment.
4 is a block diagram showing an air sterilization apparatus according to another embodiment.

Hereinafter, various embodiments will be described in detail with reference to the accompanying drawings. The embodiments described below may be modified and implemented in various different forms. In order to more clearly describe the features of the embodiments, detailed descriptions of matters widely known to those of ordinary skill in the art to which the following embodiments pertain are omitted. In addition, parts not related to the description of the embodiments are omitted in the drawings, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a configuration is said to be "connected" with another configuration, this includes not only a case of being'directly connected' but also a case of being'connected with another configuration in between'. In addition, when a certain configuration "includes" a certain configuration, it means that other configurations may be further included rather than excluding other configurations unless otherwise specified.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing an air sterilization apparatus according to an embodiment, FIG. 2 is a configuration diagram showing a configuration of an air sterilization apparatus according to an embodiment, and FIG. 3 is an operation of a reflector of an air sterilization apparatus according to an embodiment It is a configuration diagram showing the state. In addition, Figure 4 is a configuration diagram showing an air sterilization apparatus according to another embodiment.

The air sterilization apparatus 10 according to an embodiment is for sterilizing and discharging air while filtering contaminants in the air, and as shown in FIG. 2, the housing 100, the suction fan 200, the light source unit 300, It may be configured to include a ceramic filter unit 400, a photocatalytic oxidation (PCO) coating layer 500, and a reflective unit 600.

The housing 100 is a component constituting the body of the air sterilization apparatus 10 according to an embodiment, and is formed in a housing shape as shown in FIGS. 1 and 2 to form a sterilization space therein, and The air inlet 110 and the outlet 120 may be formed at the upper part, respectively.

Such a housing 100 may be formed in, for example, a enclosure shape having a spherical cross section to form a sterilizing space therein, and a cover 150 having an outlet 120 formed thereon may be provided to open the sterilizing space. have.

The suction fan 200 is a component for forcibly introducing external air into the sterilization space of the housing 100.

Specifically, the suction fan 200 is installed in a state adjacent to the inlet 110 of the housing 100 and can be operated by power, and while operating under the control of a controller not shown, external air is supplied to the inlet 110 After flowing into the sterilization space through, it may be discharged through the outlet 120.

The light source unit 300 is a component that induces a photocatalytic reaction of the ceramic filter unit 400 and the PCO coating layer 500 to be described later by providing a light source to the sterilization space.

As shown in FIG. 2, the light source unit 300 may include an LED lamp 310 and a lamp holder 320.

The LED lamp 310 is a member that emits light through the control of a controller and power, which is not shown, and provides a light source, and may be configured in plural and be installed to be coupled to a lamp holder 320 to be described later.

This LED lamp 310 may be composed of an LED having a 365nm band, but is not limited thereto.

The lamp holder 320 is a component that communicates the air of the suction fan 200 to the sterilization space while providing an installation site for the plurality of LED lamps 310.

Specifically, the lamp holder 320 has a substantially checkerboard-shaped lamp receiving unit 321 that can accommodate a plurality of LED lamps 310, and allows air to communicate with a part of the lamp receiving unit 321 and its outer periphery. A communication hole 322 may be formed so that air introduced by the suction fan 200 may be supplied to the ceramic filter unit 400 to be described later through the communication hole 322.

Here, the lamp holder 320 is formed in a separate configuration from the housing 100 and is coupled to the housing 100 in a drawer manner so that the LED lamp 310 may be detachably disposed in the sterilization space.

On the other hand, the lamp holder 320 has the lamp receiving portion 321 in a groove shape as shown in FIG. 2, but is formed into a groove having a cross-sectional shape that opens toward the top, so that the light of the LED lamp 310 is directed upward. You can spread it.

The ceramic filter unit 400 is a component that sterilizes air through a photocatalytic reaction by the LED lamp 310 while filtering contaminants in the air supplied through the communication hole 322 of the lamp holder 320.

The ceramic filter 400 is made of a ceramic material, and a porous 410 is formed to filter air through the porous 410, and a photocatalyst such as titanium dioxide is coated to sterilize the air through a photocatalytic reaction by a light source. can do.

In addition, the ceramic filter 400 may communicate air and a light source to the sterilization space of the housing 100 through the pores 410.

The PCO (Photo Catalytic Oxidation) coating layer (hereinafter referred to as "PCO coating layer") 500 is a component for sterilizing the air in the sterilization space through a photocatalytic reaction.

This PCO coating layer 500 may be coated on the inner surface of the housing 100 forming the outer sterilization space, and sterilize air while causing a photocatalytic reaction by a light source passing through the pores 410 of the ceramic filter 400. can do.

Specifically, the PCO coating layer 500 may include a titanium dioxide layer 510 and an inorganic binder layer 520 as shown in FIG. 2.

The titanium dioxide layer 510 is made of titanium dioxide (TiO ₂ ) through which a photocatalytic reaction is performed, but may be formed in a nano size.

The inorganic binder layer 520 may be fixed by bonding the titanium dioxide layer 510 to the inner surface of the housing 100.

The reflective part 600 is a component for providing reflected light to the ceramic filter part 400 or the PCO coating layer 500 by reflecting a light source that has passed through the pores 410 of the ceramic filter part 400.

That is, the reflector 600 is a component that activates a photocatalytic reaction of the PCO coating layer 500 or activates a photocatalytic reaction on the surface of the ceramic filter unit 400 by reflecting a light source reaching the sterilization space.

This reflector 600 may reflect a light source through an aluminum film 610 forming a thin plate shape as shown in FIG. 2 to provide reflected light, and the reflection angle adjuster 620 may be provided with an installation space of the aluminum film 610. It is a component that allows the reflection angle of the aluminum film 610 to be adjusted by air pressure when the suction fan 200 is operated.

Here, the reflection angle adjuster 620 may be configured to include a reflection angle 621.

Specifically, the reflection angle 621 is formed in an angle-shaped cross-section having two installation surfaces as shown in FIG. 2, so that an aluminum film 610 may be installed on one of the two installation surfaces, It may be rotatably installed in the sterilization space of the housing 100 through a rotating shaft.

The reflection angle 621 may change the reflection angle of the aluminum film 610 by rotating by air pressure by the suction fan 200 supplied to the sterilization space.

Specifically, when the air pressure by the suction fan 200 is relatively low, the reflection angle 621 maintains a state rotated toward the PCO coating layer 500 as shown in FIG. ) To provide reflected light.

In addition, when the air pressure by the suction fan 200 is relatively high, the reflection angle 621 rotates through the air pressure as shown in FIG. 3 and maintains a state rotated toward the ceramic filter unit 400. The light source may be reflected to the surface of the ceramic filter unit 400.

Here, the reflection angle 621 is configured to freely rotate about the rotation axis, so that when a relatively high air pressure is applied, it can rotate as shown in FIG. 3, and when a relatively low air pressure is applied, it returns to its original position as shown in FIG. You can keep one state.

In addition, when the pressure by the relatively high air pressure is released, the reflection angle 621 may return to its original position while rotating by its own weight.

In contrast, the reflection angle 621 may provide an elastic force to the return spring in the process of rotating through a relatively high air pressure by being provided with a return spring (not shown), and when the pressure by the relatively high air pressure is released It can return to its original position while rotating by the return spring.

On the other hand, the reflection angle 621 may sterilize air through a photocatalytic reaction by a light source by forming the above-described PCO coating layer 500 on the other installation surface of the two installation surfaces.

Meanwhile, the reflection angle adjuster 620 may be configured to further include a rotation motor 622 as shown in FIG. 4.

The rotation motor 622 is a component for forcibly rotating the reflection angle 621.

Such a rotation motor 622 may be coupled to the rotation axis of the reflection angle 621, and operates according to the output of the suction fan 200 to forcibly rotate the reflection angle 621 while increasing the reflection angle of the aluminum film 610. Can be adjusted.

For example, when the output of the suction fan 200 is relatively low, the rotating motor 622 rotates the aluminum film 610 of the reflection angle 621 toward the PCO coating layer 500 as shown in FIG. 2. When the output of the suction fan 200 is relatively high, the aluminum film 610 of the reflection angle 621 is rotated toward the ceramic filter unit 400 as shown in FIG. 3. Can be maintained.

Meanwhile, as shown in FIG. 4, the ceramic filter unit 400 described above may be configured in a plurality and installed in a state of being stacked in a vertical direction of the sterilization space.

In this case, the plurality of ceramic filter units 400 are stacked and each of the pores 410 communicates with each other to form a communication path for air.

In addition, the plurality of ceramic filter units 400 may be installed to be movable in the horizontal direction of the sterilization space, and may be configured to move horizontally through manual or separate power, respectively.

In this case, the plurality of ceramic filter units 400 horizontally move each of the pores 410 through each horizontal movement, so that the size of the air communication path may be adjusted.

Here, the plurality of ceramic filter units 400 may be automatically horizontally moved through a ball screw structure or a linear motor configuration, and the size of the communication path may be adjusted.

The operation and operation of the air sterilization apparatus 10 according to an embodiment including the above components will be described.

The suction fan 200 is operated by the controller and sucks external air into the sterilization space of the housing 100 through the inlet 110.

The air sucked by the suction fan 200 passes through the communication hole 322 constituting the lamp holder 320 and passes through the pores 410 of the ceramic filter unit 400 to filter foreign substances, thereby filtering the ceramic filter unit ( 400) can be supplied to the top.

In this case, the ceramic filter unit 400 may sterilize the air while causing a photocatalytic reaction by the light source of the light source unit 300.

In addition, the PCO coating layer 500 may sterilize air while causing a photocatalytic reaction by a light source passing through the pores 410 of the ceramic filter unit 400.

At this time, when the air pressure by the suction fan 200 is relatively low, the reflection angle 621 keeps the aluminum film 610 rotated toward the PCO coating layer 500 so that the light source is turned into the PCO coating layer 500. It can be reflected, and when the air pressure by the suction fan 200 is relatively high, the aluminum film 610 is rotated toward the ceramic filter unit 400 by the air pressure, thereby turning the light source into the ceramic filter unit ( 400) can be reflected on the surface.

Accordingly, air in the sterilization space may be discharged through the discharge port 120 in a state in which sterilization is performed by the ceramic filter unit 400 and the PCO coating layer 500.

As described above, according to the air sterilization apparatus 10 according to an embodiment, not only filtration and sterilization by the photocatalytic reaction of the ceramic filter unit 400, but also the photocatalytic reaction through the PCO coating layer 500 is performed. The sterilization performance may be further improved, and since reflected light is provided to the sterilization space through the configuration of the reflective part 400, a smooth photocatalytic reaction of the PCO coating layer 500 or the ceramic filter part 400 may be promoted.

The above-described embodiments are for illustrative purposes only, and those of ordinary skill in the art to which the above-described embodiments belong can easily transform into other specific forms without changing the technical spirit or essential features of the above-described embodiments. You can understand. Therefore, it should be understood that the above-described embodiments are illustrative and non-limiting in all respects. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as being distributed may also be implemented in a combined form.

The scope to be protected through the present specification is indicated by the claims to be described later rather than the detailed description, and should be construed as including all changes or modified forms derived from the meaning and scope of the claims and the concept of equivalents thereof. .

10: air sterilization device
100: housing
200: suction fan
300: light source
310: LED lamp
320: lamp holder
321: lamp receiving part
322: Communication Hall
400: ceramic filter unit
410: porous
500: PCO coating layer
510: titanium dioxide layer
520: inorganic binder layer
600: reflector
610: aluminum film
620: reflection angle adjuster
621: reflection angle
622: rotary motor

Claims (9)

A housing provided with an air inlet and an outlet, and a sterilization space in which air introduced through the inlet is sterilized;
A suction fan installed in the housing to introduce external air into the sterilization space through the inlet and communicate with the outlet;
A light source unit installed in the housing to provide a light source to the sterilization space;
It is installed adjacent to the light source to communicate air through the pores, filter pollutants in the air, sterilize air through a catalytic reaction by the light source of the light source, and pass the light of the light source through the pores. At least one ceramic filter unit;
A PCO (Photo Catalytic Oxidation) coating layer that is coated on the inner surface of the housing forming the outer side of the sterilization space to sterilize air while causing a catalytic reaction by the light source of the light source unit; And
It includes a reflective unit installed in the sterilization space to reflect the light source of the light source unit and provide the reflected light as the ceramic filter unit or the PCO (Photo Catalytic Oxidation) coating layer,
The reflective part,
An aluminum film installed in the sterilization space and disposed above the ceramic filter unit to reflect the light source of the light source unit; And
A reflection angle controller that provides an installation space for the aluminum film and allows adjustment of the reflection angle of the aluminum film according to the operation of the suction fan,
The reflection angle adjuster,
It is formed in an angle-shaped cross section and has two installation surfaces and is rotatably installed in the sterilization space, and the aluminum film is installed on one of the two installation surfaces to prevent the pressure of the air by the suction fan. Air sterilization device comprising a reflective angle rotating along.
delete delete The method of claim 1,
The reflection angle is,
The PCO (Photo Catalytic Oxidation) coating layer is formed on the other installation surface of the two installation surfaces, air sterilization device.
The method of claim 1,
The reflection angle adjuster,
Air sterilization apparatus further comprising a rotating motor that operates according to the output of the suction fan to rotate the reflection angle and adjust the angle of the aluminum film.
The method of claim 1,
The light source unit,
A plurality of LED lamps providing a light source by a power source; And
An air sterilization apparatus comprising a lamp holder disposed between the suction fan and the ceramic filter unit to receive the LED lamps, and a communication path for communicating air from the suction fan to the ceramic filter unit is formed.
The method of claim 1,
The PCO (Photo Catalytic Oxidation) coating layer,
A titanium dioxide layer formed in nano-sized and catalytically reacted by a light source; And
An air sterilization apparatus comprising an inorganic binder layer that adheres and fixes the titanium dioxide layer to the inner surface of the housing.
The method of claim 1,
The ceramic filter unit,
An air sterilization device consisting of a plurality and being installed in a stacked state in the vertical direction of the sterilization space, and forming a communication path for air while the pores of each filter communicate with each other.
The method of claim 8,
The plurality of ceramic filter units,
The air sterilization device is installed to be movable in the horizontal direction of the sterilization space and the size of the communication path is adjusted through horizontal movement of each filter.

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