KR20230142011A - Air purifier and air purifying method using a visible light catalyst having a reflector - Google Patents

Abstract

The present invention relates to an air purifier and an air purifying method using a visible light catalyst equipped with a reflector. More specifically, in the air purifier using a visible light catalyst, a space is provided inside and the front and rear sides are open, A main body 100 on the outside of which a discharge hole 150 connected to the space is formed; A filter 210 is installed inside the main body 100 and is placed in the space to adsorb and filter particles contained in the air being sucked in, and a visible light catalyst is applied to the top of the filter 210. an air passage 220 that causes a photocatalytic reaction, a reflector 230 disposed in the space, surrounding the outside of the air passage 220 and reflecting light, and measuring fine dust in the area where the air purifier is installed. An air purifier (200) consisting of a fine dust sensor (240) that transmits to the PCB module (320); A centrifugal fan 310 configured at the rear of the main body 100 to suction and discharge air, and a PCB module ( 320) and a rear body 300 including a UV lamp 330 for sterilizing the air moving through the filter 210, so that the incoming light can be dispersed as much as possible by bending on the inside ( Through a reflector with a curved or mirror surface, the purification, sterilization, and deodorization effects of the air flowing into the air purifier can be maximized, thereby increasing the cleaning effect. The assembly structure of the reflector allows the inside of the reflector to be Even if it is damaged, it can be easily replaced, making it a useful invention with high economic efficiency.

Description

Air purifier and air purifying method using a visible light catalyst having a reflector}

The present invention relates to an air purifier and an air purifying method using a visible light catalyst equipped with a reflector. More specifically, the present invention relates to an air purifier and an air purifying method using a visible light catalyst equipped with a reflector. More specifically, when light is absorbed and the photocatalytic reaction is promoted, the light entering the interior is dispersed to purify and sterilize through activation of the photocatalytic reaction. , This is a technology that maximizes the deodorizing effect.

Typically, air purifiers are used to make indoor air comfortable. They are configured to suck indoor air, sterilize it, and then discharge it again. They transform pollutants contained in the sucked air into substances that are harmless to the human body and discharge them. A photocatalyst is used to achieve this.

A photocatalyst is a substance that causes a catalytic reaction when exposed to light and is harmless to the human body. It is a substance that promotes the reaction by absorbing light without changing itself. This photocatalyst is used by applying it to some internal components of the air purifier. there is.

Meanwhile, the sterilization function of conventional air purifiers is mostly sterilization using UV-C, and there have been reported cases of damage such as skin damage and carcinogenesis when the human body is directly exposed to UV-C. , there is a problem of harm to the human body, and there is a titanium dioxide catalyst that does not use UV-C but uses light in the 280nm range. However, when using this TiO2 (titanium dioxide) catalyst, the catalytic reaction almost does not occur in general visible light. It has the disadvantage of having to irradiate light in a specific wavelength range (280 nm range).

Recently, the use of tungsten oxide (WO3) catalysts, which can compensate for these shortcomings and problems, enables sterilization by activating the catalytic reaction even under fluorescent lighting or general visible light.

First, looking at conventional technologies,

Registration number 10-2307194 (special) intake unit; Photocatalyst LED installed in the LED lamp unit; Photocatalyst filter unit; and an exhaust unit, wherein the visible light emitted from the photocatalyst LED has a peak wavelength of 450 to 650 nm, and the photocatalyst filter unit is characterized in that a photocatalyst is coated on the surface of the metal mesh, and the photocatalyst is In coating the metal mesh, the photocatalyst coating liquid is characterized in that it contains a binder mixed with the photocatalyst mixture and polyvinylpidolidone (PVP) and tetraethylorthosilicate (TEOS) in a weight ratio of 1:1, A photocatalyst coating solution was prepared by mixing 150 parts by weight of tetraethyl orthosilicate (TEOS) and 150 parts by weight of polyvinylpidolidone (PVP) with 100 parts by weight of the photocatalyst mixture, and the photocatalyst coating solution was coated on a metal mesh and incubated at 450 to 500°C. This is a technology for a vehicle air purifier that forms a photocatalyst filter unit by performing heat treatment within a temperature range.

Registration No. 10-2312106 (Special) A housing having a suction part through which air is sucked, a discharge part through which air introduced into the suction part is discharged, and a communication path communicating with the suction part and the discharge part; a disk impeller in which a plurality of disks forming a through hole in the center and coated with a photocatalytic material on the surface are stacked at intervals within the housing; a drive motor that rotates the disk impeller; a photocatalytic light source provided in the housing to irradiate light to the surface of the disk to cause a photocatalytic reaction in the air flowing through the disk impeller; And a disk located on the outside of the suction part opposite to the suction part, instead of the through hole, protrudes towards the suction part in a cone shape at a certain height, and includes a resonance sound prevention part that prevents the generation of resonance sound. am.

Registration number 10-0776386 (Special) It is rotatably mounted on the rotating ball of the case, which has an inlet and an outlet that draw in and discharge indoor polluted air, and open and close the front of the case, and display the exhibits as a dimmer under the control of a printed circuit board. a display unit mounted on the rear of the door to display with light emitted from; a bracket mounted on the front of the case to accommodate the filtering unit and guide the flow of air so that air can move through the filtering unit; A filtration device with a nanocomposite photocatalyst filter built into the bracket to filter polluted air flowing in through the rotation of the suction fan and simultaneously sterilize/deodorize harmful substances in the polluted air by causing an oxidation/reduction reaction with light emitted from the lamp. This is a technology for an air purifier using a nanocomposite photocatalytic filter composed of parts.

Publication No. 10-2019-0012879 (Special) A plurality of through holes are formed so that a pair of through parts through which air flows in and out are spaced apart along the direction of movement of the air, and on the back side, a thickness is placed at a predetermined distance from the edge. A front portion in which a wall is formed along a direction, and a pre-filter mounting portion on which a pre-filter is mounted is formed on the back of the penetrating portion; A housing that includes a receiving portion that is open on one side and has a receiving space, and a rim that is bent and extended from an edge of the receiving portion, and that when coupled to the front portion, the rim is in close contact with the inner surface of the wall; A fan mounted on the rear of the pre-filter mounting unit; It is mounted on the front part, and is prepared by manufacturing SUS-316L into yarn with a diameter of 7 to 9 nm and then weaving it. A reaction part where silver nano particles are coated with a silver nano photocatalyst doped with titanium dioxide photocatalyst particles and then heat treated, and the reaction A photocatalyst sterilizing unit including a photocatalyst lamp spaced apart from the reaction unit and parallel to the moving direction, and a sterilizing lamp spaced apart from the reaction unit and parallel to the moving direction; An activated carbon filter disposed in a direction perpendicular to the moving direction and mounted in the receiving space; and a HEPA filter disposed in a direction perpendicular to the moving direction, mounted in the receiving space, and disposed behind the activated carbon filter. This is a technology related to an air purifier that can be embedded in a ceiling.

The above-mentioned prior technologies are air purifiers that can purify, sterilize, and deodorize by allowing a photocatalyst to react using light coming from the outside, and have a general structure.

However, the above-mentioned conventional air purifier has a problem in that the amount of light flowing in when installed is limited by the cover, etc., so the purification, sterilization, and deodorization effects are inevitably reduced.

The present invention was developed to solve the problems of the prior art described above. When light flows into the interior of an air purifier, a reflector is formed that surrounds the air passage coated with a photocatalyst, and the inside of the reflector is curved. The technical task was completed with a focus on providing an air purifier and air purification method using a visible light catalyst equipped with a reflector that can disperse the incoming light to the maximum extent to maximize the purification, sterilization, and deodorization effects. .

Accordingly, the present invention provides an air purifier using a visible light catalyst, which includes a main body (100) with a space inside, open at the front and rear, and a discharge hole (150) connected to the space on the outside. A filter 210 is installed inside the main body 100 and is placed in the space to adsorb and filter particles contained in the air being sucked in, and a visible light catalyst is applied to the top of the filter 210. an air passage 220 that causes a photocatalytic reaction, a reflector 230 disposed in the space, surrounding the outside of the air passage 220 and reflecting light, and measuring fine dust in the area where the air purifier is installed. An air purifier (200) consisting of a fine dust sensor (240) that transmits to the PCB module (320); A centrifugal fan 310 configured at the rear of the main body 100 to suction and discharge air, and a PCB module ( 320) and a rear body 300 including a UV lamp 330 for sterilizing the air moving through the filter 210.

The main body 100 has respective filter insertion grooves 110 into which the filter 210 is inserted, and a filter insertion groove 110 and an air flow path 220 on the upper part of the filter insertion groove 110. and an insertion groove 120 into which the reflector 230 is inserted, a fine dust sensor insertion groove 130 formed to be spaced apart from the insertion groove 120 into which the fine dust sensor 240 is inserted, and the filter insertion at the rear. A technical feature is that a moving hole 140 extending from the groove 110 and a discharge hole 150 extending from the insertion groove 120 and the fine dust sensor insertion groove 130 are formed on the outside.

The reflector 230 is formed in a divided form, and has a technical feature in that the inner side surface 231 is formed in a curved shape.

A technical feature of the inner surface 231 is that a convex mirror surface 233 is formed along the inner surface 231 to widen the angle of reflection of light.

A technical feature is that a front cover 400 having a plurality of through holes 421 formed in the center is fastened to the front of the main body 100.

The filter 210 has a technical feature of being composed of a HEPA filter or an Ulpa filter.

Looking at the air purifying method using an air purifier, the first step (S100) is to install the air purifier in a random location indoors where air purification is required; A second step (S200) of operating the air purifier and acquiring indoor information from the fine dust sensor 240; A third step (S300) in which the acquired information is transmitted to the PCB module 320, and the PCB module 320 operates the centrifugal fan 310 to suck indoor air; The sucked air is firstly purified, sterilized and deodorized through contact with a visible light catalyst, secondly, particles are adsorbed and filtered as it passes through the filter, and thirdly, the air is sterilized through light irradiated from the UV lamp (330). The technical feature is that it includes a fourth step (S400) of discharging to the outside of the purifier.

According to the air purifier and air purifying method using a visible light catalyst equipped with a reflector of the present invention, the original purpose of the air purifier is maintained as is, and the inside is curved or mirrored to disperse the incoming light as much as possible. Through a reflector with a reflector, the purification, sterilization, and deodorization effects of the air flowing into the air purifier can be maximized, thereby increasing the cleaning effect. Even if the inside of the reflector is damaged through the assembly structure of the reflector, it can be easily replaced. It is a useful invention with high economic efficiency.

1 is a perspective view showing a preferred embodiment of the present invention
Figure 2 is a plan view showing a preferred embodiment of the present invention
Figure 3 is an exploded view showing a preferred embodiment of the present invention
Figure 4 is a perspective view showing a preferred embodiment of the main body of the present invention.
Figure 5 is a perspective view showing a preferred embodiment of the air purifier of the present invention.
Figure 6 is a perspective view showing a preferred embodiment of the reflector of the present invention
7 is a perspective view and cross-sectional view showing a preferred embodiment of the reflector of the present invention.
8 is a perspective view and cross-sectional view showing another embodiment of the reflector of the present invention.
Figure 9 is a perspective view showing a preferred embodiment of the rear cover of the present invention.
Figure 10 is a perspective view showing a preferred embodiment of the front cover of the present invention.
11 is a flow chart showing a preferred embodiment of the present invention.

The present invention uses a visible light catalyst equipped with a reflector to maximize the purification, sterilization, and deodorization effects through activation of the photocatalyst reaction by dispersing the light entering the interior when the light is absorbed into the interior of the air purifier to promote the photocatalytic reaction. Air purifiers and air purification methods are provided.

Hereinafter, the preferred configuration and operation of the present invention for achieving the above object will be described with reference to FIGS. 1 to 11 in relation to the accompanying drawings.

First, before explaining the present invention, let's look at its configuration:

As shown in FIG. 3, the present invention consists of a main body 100, an air purifier 200, and a rear body 300.

As shown in Figure 3 or Figure 4, the main body 100 is formed with a space provided inside and the front and rear sides are open, and a discharge hole 150 connected to the space is formed on the outside.

In other words, the main body 100 serves as a framework constituting the air purifier of the present invention, and as shown in FIG. 4, each filter insertion groove 110 into which the filter 210 is inserted is provided. The filter insertion groove 110 may be formed in any one of a circular shape, a semi-circular arc, and a polygonal shape. In the present invention, it is shown as being formed in a square shape and is not limited to this embodiment of the present invention.

Here, an insertion groove 120 is formed on the main body 100, extending from the filter insertion groove 110, into which the air passage 220 and the reflector 230 are inserted.

In the case of the insertion groove 120, as shown in FIG. 4, it is formed in a square shape, and the two corner portions are formed to be rounded and are formed to correspond to the insertion groove 120 on the outside of the reflector 230. It is configured so that it can be configured and fixed.

At this time, the reason why two of the four corners of the insertion groove 120 are rounded is to make the reflection angle of light more efficient.

Meanwhile, a fine dust sensor insertion groove 130 is formed to be spaced apart from the insertion groove 120 into which the fine dust sensor 240 is inserted.

Here, a moving hole 140 extending from the filter insertion groove 110 is formed at the rear of the main body 100. The moving hole 140 is used to filter air after polluted air flows into the air purifier. After being purified, sterilized, and deodorized by contact with a visible light catalyst through the flow path 220, particles are adsorbed through the filter 210, and the filtered moving air is

It is a passage that moves to the rear cover 300 so that it can be discharged.

The discharge hole 150 is formed on the outside of the main body 100 and is configured to be discharged to the outside after purification, sterilization, deodorization, and additional sterilization treatment by the UV lamp 330. In this case, the discharge The holes 150 may be formed in one or more numbers, and their shape may be one of a circle, a rectangular circle, a semi-circular arc, or a polygon. When formed in large numbers, the distance between them is very narrow. It is desirable to be

A discharge hole 150 extending from the insertion groove 120 and the fine dust sensor insertion groove 130 is formed on the outer surface of the main body 100, so that the finally filtered air can be discharged to the outside. .

As shown in FIGS. 3 and 5, the air purifier 200 is configured inside the main body 100, and includes a filter 210 disposed in the space to adsorb and filter particles contained in the sucked air. ) is composed.

That is, the filter 210 is inserted into each of the filter insertion grooves 110 of the main body 100 and is configured to filter the sucked air, and the filter 210 is inserted into the filter insertion groove 110 of the main body 100. It is preferable that the shape and the outer shape are formed to correspond to each other so that they can be fixed after insertion, and their number is also formed the same as the number of the filter insertion grooves 110.

Additionally, the filter 210 is composed of a HEPA filter or an Ulpa filter.

Here, an air passage 220 is formed inside the main body 100 to cause a photocatalytic reaction by light in which a visible photocatalyst is applied to the upper part of the filter 210, and flows into the inside of the main body 100. It performs the role of purifying, sterilizing, and deodorizing the air being sucked in. For this purification, sterilizing, and deodorizing, light flows in from the outside to effectively purify, sterilize, and deodorize the air.

Meanwhile, a reflector 230 is disposed in the space of the main body 100 and surrounds the outside of the air passage 220 and reflects light. The reflector 230 is a key component of the present invention, and is shown in FIG. As shown in Figures 5 to 8, it is formed in a shape divided into four parts, upper, lower, left, and right, and the inner surface 231 is formed in a curve to disperse light flowing in from the outside as much as possible, thereby forming the air flow path. (220) plays the role of reflecting light so that it can react evenly on the surface during the visible photocatalyst reaction.

In other words, the inside of the reflector 230 is formed to be curved, so that after light flows in as described above, it is reflected by the inner curved portion of the reflector 230 and is reflected on the outside of the air passage 220. By reflecting light to areas where light did not reach, it has the effect of making the visible light catalytic reaction even and uniform.

In addition, as shown in FIG. 8, on the inner surface 231 of the reflector 230, a convex mirror surface 233 is formed along the surface to widen the reflection angle of light, further enhancing the reflection effect. It can be maximized.

Conventionally, when light flows into the interior of an air purifier for a photocatalytic reaction, the amount of light is very limited depending on the structure of the air purifier, so some parts undergo a photocatalytic reaction while some parts do not have a photocatalytic effect. However, in the present invention, the purification, sterilization, and deodorization effects were insufficient, but in the present invention, the outer side of the air passage 220 was formed through the configuration of the curved or convex mirror surface 233 of the inner surface 231 of the reflector 230. Light is irradiated evenly throughout the entire area to maximize the visible light catalytic reaction, thereby improving purification, sterilization, and deodorization effects.

In addition, the fine dust sensor insertion groove 130 of the main body 100 is provided with a fine dust sensor 240 that measures fine dust in the place where the air purifier is installed and transmits it to the PCB module 320.

The fine dust sensor 240 is a sensor that typically detects fine dust, and a separate detailed description will be omitted. At this time, the method of transmitting information (data) to the PCB module 320 is wired or wireless communication. It can be applied as.

Meanwhile, as shown in FIG. 9, the rear body 300 is fastened to the rear of the main body 100 and includes a centrifugal fan 310 for suction and discharge of air. The centrifugal plate 310 ) receives indoor information from the fine dust sensor 240 to the PCB module 320 and operates to suck indoor air into the interior of the air purifier and at the same time moves the sterilized, purified, and deodorized air into the moving hole 140. ) and finally discharges the air to the outside of the air purifier. It is preferable that the same number of centrifugal fans 310 are configured according to the number of moving holes 140. In the invention, it is shown as consisting of a pair.

The rear body 300 includes a PCB module 320 that is disposed between the centrifugal fans 310 and operates the centrifugal fan 310 according to information received from the fine dust sensor 240. The fan 310 and the fine dust sensor 240 can be connected by wiring or wirelessly.

In addition, the rear body 300 is disposed at regular intervals above the centrifugal fan 310 and is operated by the PCB module 320 to move through the filter 210 and the moving hole 140. A UV lamp 330 is configured to sterilize the air, and the UV lamp 330 can be configured at the top and bottom of the centrifugal fan 310, respectively, and can be configured alone at the top or bottom.

Meanwhile, as shown in FIG. 10, a front cover 400 having a plurality of through holes 421 formed in the center is fastened to the front of the main body 100, and the front cover 400 is substantially It consists of a cover body 410 fastened to the front of the main body 100 and a frame 420 fastened to the cover body 410, and a plurality of through holes 421 are formed in the frame 420.

That is, the cover body 401 is fastened to the front of the main body 100 to prevent the reflector 230 and the fine dust sensor 240 from being separated to the outside, and the frame 403 is a centrifugal fan. When (310) is operated, when air is sucked into the air purifier, it plays the role of catching large foreign substances through the tight hole (421), thereby preventing other damage or malfunctions that may occur. It has a possible effect.

The air purifier of the present invention as described above is composed of a main body 100, an air purifier 200, a rear cover 300, and a front cover 400, and has a structure that is fastened to each other, and has a reflector ( Through the configuration of 230), when light flowing into the air purifier from the outside is irradiated on the surface of the air passage 220, the inner surface 231 of the reflector 230 is not limited depending on the location of the air purifier. By forming a bend (curve) and a convex mirror surface 233, the light is reflected and reaches the outside of the air passage 220 where the initially incoming light does not reach, thereby enabling visible photocatalytic reactions to occur evenly, purifying and sterilizing. , the deodorizing effect can be maximized.

Looking at the air purifying method using the air purifier of the present invention, as shown in Figure 11,

The first step (S100) of installing an air purifier in a random location indoors where air purification is required; A second step (S200) of operating the air purifier and acquiring indoor information from the fine dust sensor 240; A third step (S300) in which the acquired information is transmitted to the PCB module 320, and the PCB module 320 operates the centrifugal fan 310 to suck indoor air; The sucked air is firstly purified, sterilized and deodorized through contact with a visible light catalyst, secondly, particles are adsorbed and filtered as it passes through the filter, and thirdly, the air is sterilized through light irradiated from the UV lamp (330). It includes a fourth step (S400) of discharging to the outside of the purifier.

According to the air purifier and air purifying method using a visible light catalyst equipped with a reflector of the present invention, the original purpose of the air purifier is maintained as is, and the inside is curved or mirrored to disperse the incoming light as much as possible. Through a reflector with a reflector, the purification, sterilization, and deodorization effects of the air flowing into the air purifier can be maximized, thereby increasing the cleaning effect. Even if the inside of the reflector is damaged through the assembly structure of the reflector, it can be easily replaced. It is a useful invention with high economic efficiency.

100: main body
110: Filter insertion groove 120: Insertion groove
130: Fine dust sensor insertion groove 140: Moving hole
150: discharge hole
200: Air Cleaning Department
210: Filter 220: Air passage
230: Reflector 231: Inner side
233: Convex mirror surface
240: Fine dust sensor
300: Rear cover
310: Centrifugal fan 320: PCB module
330: UV lamp
400: Front cover
410: Cover body
420: frame 421: through hole
S100: 1st stage S200: 2nd stage
S300: 3rd stage S400: 4th stage

Claims (7)

In an air purifier using a visible light catalyst,
A main body (100) with a space inside, open at the front and rear, and a discharge hole (150) connected to the space on the outside.
A filter 210 is installed inside the main body 100 and is placed in the space to adsorb and filter particles contained in the air being sucked in, and a visible light catalyst is applied to the top of the filter 210. an air passage 220 that causes a photocatalytic reaction, a reflector 230 disposed in the space, surrounding the outside of the air passage 220 and reflecting light, and measuring fine dust in the area where the air purifier is installed. An air purifier (200) consisting of a fine dust sensor (240) that transmits to the PCB module (320);
A centrifugal fan 310 configured at the rear of the main body 100 to suction and discharge air, and a PCB module ( 320) and a rear body 300 including a UV lamp 330 for sterilizing the air moving through the filter 210. Air using a visible light catalyst having a reflector. Purifier.
According to clause 1,
The main body 100 is,
Each filter insertion groove 110 into which the filter 210 is inserted,
An insertion groove 120 extending from the upper part of the filter insertion groove 110 and into which the air flow path 220 and the reflector 230 are inserted,
A fine dust sensor insertion groove 130 formed to be spaced apart from the insertion groove 120 into which the fine dust sensor 240 is inserted,
A moving hole 140 extending from the filter insertion groove 110 at the rear,
An air purifier using a visible light catalyst having a reflector, characterized in that an discharge hole 150 extending from the insertion groove 120 and the fine dust sensor insertion groove 130 is formed on the outside.
According to clause 1,
The reflector 230 is,
An air purifier using a visible light catalyst having a reflector that is formed in a divided form and whose inner surface (231) is curved.
According to clause 3,
An air purifier using a visible light catalyst having a reflector, wherein a convex mirror surface 233 is formed along the inner surface 231 to widen the angle of reflection of light.
According to clause 1,
On the front of the main body 100,
An air purifier using a visible light catalyst having a reflector, characterized in that the front cover 400 is fastened with a plurality of through holes 421 formed in the center.
According to clause 1,
The filter 210 is an air purifier using a visible light catalyst having a reflector, characterized in that it is composed of a HEPA filter or an Ulpa filter.
Use the air purifier of any one of paragraphs 1 to 6,
The first step (S100) of installing an air purifier in a random location indoors where air purification is required;
A second step (S200) of operating the air purifier and acquiring indoor information from the fine dust sensor 240;
A third step (S300) in which the acquired information is transmitted to the PCB module 320, and the PCB module 320 operates the centrifugal fan 310 to suck indoor air;
The sucked air is firstly purified, sterilized and deodorized through contact with a visible light catalyst, secondly, particles are adsorbed and filtered as it passes through the filter, and thirdly, the air is sterilized through light irradiated from the UV lamp (330). An air purifying method using a visible light catalyst having a reflector, comprising a fourth step (S400) of discharging the air to the outside of the purifier.