KR20230036863A - air purifier - Google Patents

Abstract

The present invention relates to a tunnel type air sterilizer using a photoelectronic sterilization system that uses photocatalyst blades to increase the effect of sterilizing contaminants remaining in the air. The tunnel type air sterilizer comprises: a housing having an air intake portion and an air discharge portion; a fan disposed inside the housing to suction outside air through the air intake portion; a sterilization module disposed behind the fan to purify the air introduced into the housing by the fan; and a filter disposed in a path through which the air is suctioned and discharged, to filter contaminants contained in the air. The sterilization module has a sterilization lamp disposed at the center of a rear end of the fan, and has a metallic photoelectronic catalyst coated with photocatalyst to surround the circumference of a sterilization lamp, to increase air sterilization efficiency while a catalytic reaction occurs when ultraviolet rays are irradiated by the sterilization lamp. The photoelectronic catalyst has a plurality of blades radially disposed on the inner circumference of a discharge tube having a metallic hollow structure, to be close to the surface of the sterilization lamp, and formed in a tunnel shape in the longitudinal direction of the sterilization lamp. Therefore, the size of the air purifier can be reduced, and the effect of sterilizing can be greatly increased.

Description

Tunnel type air purifier{air purifier}

The present invention relates to an air purifier that sucks polluted indoor air, removes contaminants, and discharges the purified air through an outlet, and more particularly, utilizes photocatalyst blades to enhance the sterilization effect of pollutants remaining in the air. It relates to an air sterilizer to which a tunnel-type optoelectronic sterilization system is applied.

In general, an air purifier is a device that purifies the air by sucking polluted air into the device using a fan, purifying it, and then discharging the purified air again. It is used for sterilizing and purifying viruses and harmful bacteria. do.

As the global pandemic has recently occurred and protracted, interest in personal hygiene has increased and customers' interest in hygiene has increased in workplaces. When ventilation is not performed properly, contaminants such as bacteria and viruses that cause respiratory diseases become suspended in the indoor air and spread through droplets or aerosols. Demand for purifying indoor air is increasing. However, a technology capable of effectively removing pollutants in the air is required.

As a method for purifying air, a method of sterilizing by installing an ultraviolet lamp and a method using plasma are mainly used, but conventional air purifiers have a problem in that sufficient sterilization effect is not obtained.

In addition, for a sufficient sterilization effect, since the air flow must be repeated along the air purification path, increasing the sterilization effect entails the problem of increasing the size of the device. This causes various problems such as manufacturing problems, installation space problems, and inconvenience of use.

In addition, the conventional air purifier has a problem in that the structure for guiding the flow of air is excessively complicated, and the assembly structure is complicated accordingly, so that workability is reduced in the manufacturing process and maintenance is difficult.

The present invention is to solve the above problems, to provide an air purifier having a structure that greatly improves the sterilization effect while miniaturizing the size of the air purifier, is not harmful to the human body, and simplifies the assembly structure so that maintenance is easy. that made it possible

The present invention as a technical idea for achieving the above object is a housing having an air intake unit and an air discharge unit, a fan disposed inside the housing to suck in air from the outside through the air intake unit, and a fan drawn into the housing by the fan. An air purifier is configured to include a sterilization module disposed at the rear of the fan to purify the air, and a filter disposed on a path through which the air is sucked in and then discharged to filter pollutants contained in the air, In the sterilization module, a sterilization lamp is placed in the center of the rear end of the fan, and a metallic photoelectronic catalyst coated with a photocatalyst is installed to surround the periphery of the sterilization lamp. The photoelectronic catalyst causes a plurality of blades arranged radially to approach the surface of the sterilization lamp at the inner periphery of the discharge tube having a metallic hollow structure to be formed in a tunnel shape along the longitudinal direction of the sterilization lamp, By arranging a plurality of ventilation grooves whose contact cross-sectional area is increased by radially arranging airflow in a tunnel structure, the air contact cross-sectional area is increased on the path where air sterilization is performed to increase the photocatalytic efficiency, and the photocatalyst has a high-pressure generator are electrically connected and the electrodes are alternated to activate the current.

In addition, the structure of the sterilization module is composed of a divided discharge tube with a structure surrounding the sterilization lamp, modularized using a mounting cover divided into upper and lower covers, and inserting and withdrawing the modularized sterilization module into the housing in a sliding structure By making this possible, assembly and separation are made easy.

According to the tunnel type air purifier of the present invention, even if the main body of the air sterilizer is made of a small size, efficient sterilization is possible using blades and photocatalysts according to air flow in a small space, so it can remove fine dust, bacteria, viruses, etc. , the installation space can be significantly reduced compared to the sterilization efficiency.

In addition, the divided structure of the photoelectronic catalyst can greatly improve assemblyability while maintaining the sterilization effect, and can be completely separated, and the internal and external structures are very simplified, allowing consumers to easily separate and clean management such as washing. do.

In addition, by modularizing the sterilization part, it is possible to manufacture and provide air purifiers in various structures and designs, and to efficiently implement sterilization function, it is possible to use multiple sterilization modules such as installing a plurality of sterilization modules in one air purifier. It has a very economical advantage because it can greatly reduce design and production costs accordingly, thereby reducing manufacturing costs and preventing unnecessary waste of resources.

1 is an external perspective view of a tunnel type air purifier of the present invention
Figure 2 is an exploded perspective view of the tunnel type air purifier of the present invention
Figure 3 is a schematic view showing the internal structure of the assembled state of Figure 2
Figure 4 is a cross-sectional structural diagram in which air purification is performed by the air purifier of the present invention
5 is a flow chart in which the air purification of the present invention is performed
6 is a longitudinal sectional view of the tunnel type air purifier of the present invention
7 is a state diagram in which ultraviolet rays of the germicidal lamp of the present invention are irradiated to the photoelectronic catalyst
8 is a structural diagram in which the sterilization module of the present invention is mounted on the mounting cover
9 is an exploded view of the sterilization module of the present invention
10 is a state diagram in which the lower body of the discharge tube is assembled to the lower cover of the present invention
11 is another embodiment of the photoelectronic catalyst of the present invention

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

The tunnel-type air purifier of the present invention has a structure in which a fan 200, a sterilization module 300, and a filter 400 are built in the housing 100, so that outside air is sucked in by the fan 200 and Air purification is performed by allowing the inhaled air to be discharged via the sterilization module 300 and the filter 400, and the sterilization module 300 is catalyzed by the sterilization lamp 320 and the light emitted from the sterilization lamp 320. It is configured to include a photoelectronic catalyst 340 surrounding the germicidal lamp so that

As shown in FIGS. 1 to 3, the tunnel type air purifier structure of the present invention is provided with a housing 100 having an air intake part 120 formed at one end and an air discharge part 140 formed at the other end, A fan 200 is mounted on the housing 100 to take in external air through the air intake unit 120 and discharge purified air through the air discharge unit 140, and the housing 100 rotates in one direction. It is configured in a long form so that the ventilation passage is configured so that the air intake and discharge path can be guided by the fan 200.

A sterilization module 300 may be mounted behind the fan 200 to purify the air drawn into the housing by the fan 200, and the air sucked by the fan through the air intake 120 A filter 400 for filtering pollutants contained in the air may be mounted on a path through which the air passes until it is discharged through the air discharge unit 140 .

The sterilization module 300 may include a sterilization lamp 320 that emits ultraviolet rays and a photoelectronic catalyst 340 that increases the sterilization effect in response to light emitted from the sterilization lamp 320, the sterilization lamp The photoelectronic catalyst 340 may be mounted so as to surround the periphery of the germicidal lamp 320 in a state in which the fan 320 is disposed at the center of the rear end of the fan 200.

At this time, the sterilizing lamp 320 is composed of a cylindrical UV-C lamp and is inserted into the housing 100 having a long shape so that ultraviolet rays are continuously irradiated on the ventilation passage, and the photoelectronic catalyst 340 ) is a metallic hollow structure, preferably by forming a discharge tube 342 by aluminum extrusion, and performing photocatalytic coating using titanium dioxide, etc., which has good acid resistance and alkali resistance and is harmless to the human body, Sterilization efficiency is increased when air sterilization is performed.

Titanium dioxide is an n-type semiconductor, and when exposed to ultraviolet rays (400 nm), electrons with negative charges and electron holes with positive charges are generated, similar to silicon used in solar cells. Bamboo generates hydroxyl radical ( - OH) and superoxide (O2 - ) with strong oxidizing power, and these active oxygens oxidize and decompose organic compounds to harmless water and carbon dioxide.

In particular, when a small amount of odor elements are contained in the air, an unpleasant odor is generated. The sterilization function that removes harmful substances such as mold, bacteria, and viruses that cause odor prevents the spread of bacteria and viruses and provides a deodorizing function. Of course, it can provide a hygienic air purification function by antibacterial action.

At this time, in the photoelectronic catalyst 340, a plurality of blades 344 radially disposed on the inner periphery of the discharge tube 342 having a hollow structure so as to be close to the surface of the sterilization lamp are formed in a tunnel shape along the longitudinal direction of the sterilization lamp. A plurality of ventilation grooves 346 whose contact cross-sectional area is increased by the blade 344 are radially arranged, and the entire blade 344 and the ventilation groove 346 are coated with the photocatalyst as described above. When it receives light, it causes a catalytic reaction and generates oxidizing power, which converts harmful organic chemicals into water and carbon dioxide gas and decomposes them into non-toxic and odorless substances, greatly increasing sterilization efficiency.

That is, as shown in FIGS. 4 and 5, the air taken in through the air intake unit 120 by the operation of the fan 200 is discharged via the photoelectronic catalyst 340 having a tunnel structure, and at this time, the sterilizing lamp ( 320) is irradiated into the ventilation groove 346 to sterilize the air. At this time, the area of the ventilation groove 346 is greatly increased by dividing the space by the blade 344, thereby reducing the contact area of the photocatalyst. It can be maximized to greatly improve the sterilization effect.

At this time, as a structure for uniformly irradiating the light emitted from the sterilizing lamp 320 on the inner surface of the photoelectronic catalyst 340, a plurality of divided ventilation grooves 346 are formed by radially arranging the blades 344 at regular intervals. It is configured and the sterilization efficiency can be made uniform throughout the inside of the sterilization module 300.

At this time, as shown in FIG. 6, the spacing of the blades 344 is made in a form that narrows as it approaches the sterilization lamp 320 side, so that the plasma effect can be further increased, and the tip thereof is outside the sterilization lamp 320. By being spaced apart from the periphery, the inner diameter of the ventilation groove 346 is configured to gradually widen toward the outside of the discharge tube 342, so that the contact cross-sectional area can be further increased even though ultraviolet rays are irradiated to a depth.

At this time, the discharge tube 342 can be configured in various forms according to the external shape of the air purifier, and the discharge tube 342 is formed in a cylindrical shape, and the blade 344 and the ventilation groove 346 are repeatedly arranged radially therein. structure, or as shown in FIG. 11, the discharge tube 342 may be configured in a rectangular shape, and when the discharge tube is configured in a rectangular shape, the ventilation groove 346 The internal contact area can be further increased.

In addition, a groove 343 may be formed on the surface of the discharge tube 342 along the longitudinal direction of the discharge tube so as to match the protruding position of each blade 344, and current flows to the blade matched to each groove. Induction can further improve the plasma radiation efficiency.

At this time, the sterilization module 300 is equipped with a high-pressure generator 360 electrically connected to the photoelectronic catalyst 340 to increase the reaction participation time of the excited electrons to increase the photocatalytic efficiency. At this time, the high-pressure generator A high pressure generator of 2K or higher may be used.

That is, the + and - electrodes of the high-voltage generator 360 are electrically connected to the photoelectronic catalyst 340 to generate a high voltage, so that electrons move, and when ultraviolet rays are irradiated on the discharge portion coated with the photocatalyst, various photocatalysts occur and various It can oxidize and decompose contaminants.

The high-voltage generator 360 connects + and - electrodes to one end and the other end of the photoelectronic catalyst 340, respectively, and is configured to activate current by alternating + and - electrodes, thereby electrically activating current using repetitive high-voltage discharge. It is possible to generate photocatalysis according to the discharge tube 342. For example, by connecting + electrodes at the top of the discharge tube 342 and - electrodes at the bottom to alternate + and -, and adjusting the alternating timing, an efficient catalytic reaction can be expected.

In addition, an ion generator 380 capable of effectively removing viruses, harmful bacteria, and fungi floating in the air through plasma discharge may be further installed at one end of the photoelectronic catalyst 340 .

In addition, an air sensor 390 for measuring air quality can be installed. A dust sensor is mounted as the air sensor 390, and the control unit controls the operation of the fan 200 based on the value measured by the dust sensor. The airflow can be automatically adjusted by allowing the

At this time, the air sensor 390 is preferably exposed to the outside of the mounting cover 500, more preferably the outside of the housing 100 to measure the degree of contamination of the indoor air and automatically adjust the air volume.

On the other hand, the photoelectronic catalyst 340 has a structure in which the discharge tube 342 is divided into an upper body 342a and a lower body 342b, as shown in FIG. The assembly structure of the photoelectronic catalyst 340 within the housing 100 can be simplified.

At this time, as a structure for fixing the state in which the photoelectronic catalyst 340 is wrapped along the circumference of the sterilization lamp 320 and inserting and withdrawing the assembled sterilization module 300 into the housing 100 in a sliding structure. As shown in FIGS. 8 and 10 , a mounting cover 500 having a structure surrounding the photoelectronic catalyst 340 may be used.

The mounting cover 500 has a structure divided into an upper cover 520 and a lower cover 540 so as to surround the outer periphery of the discharge tube 342, so that the upper and lower bodies can be separated and assembled separately.

At this time, the lower body 342b of the discharge tube 342 is seated on the lower cover 540, the upper body 342a is covered thereon, and then the upper cover 520 is covered to complete the assembly. As a structure, the photoelectronic catalyst 340 may be assembled and separated.

In addition, a protruding guide 542 is formed on the lower cover 540, and a groove having a structure inserted into the lower body corresponding to the guide 542 is formed to guide the lower body 342b to be mounted in place. And, even if the movement of the air purifier occurs, it does not flow and maintains the correct position, and the distance between the sterilizing lamp 320 and the tip of the blade 344 is kept constant so that the arrangement of the blades 344 is biased to one side. It can prevent losing and maintain even sterilization efficiency.

At this time, as a structure for realizing division and assembly of the discharge tube 342, the lower body 342b and the upper body 342a seated on the top are interlocked in a stepped structure to be fixed to prevent movement and to be in place. It can be fixed, and in a state in which the upper body 342a is assembled to the lower body 342b, the upper cover 520 is overlaid to cover the upper end and assembled with the lower cover to be firmly fixed.

In addition, a lamp socket 580 is formed in the mounting cover 500 so that the sterilization lamp 320 is integrally mounted so that the means for sterilization is made of one module.

Therefore, it is possible to assemble the lower body 342b of the discharge tube 342 in place on the lower cover 540, and cover the upper body 342a on the top while the germicidal lamp 320 is mounted, and then the upper cover 520 ), it is possible to simply assemble the photoelectronic catalyst 340 in the form of covering the sterilization lamp 320, and in that state, it is simply inserted into the housing 100 in a sliding manner and assembled, so work in the manufacturing process In addition to greatly improving performance, management or maintenance such as replacing a germicidal lamp during use can be performed very easily.

In addition, as described above, by modularizing the means for sterilization into one sterilization module 300, even if the air purifier is manufactured in various structures or designs, it can be easily assembled and separated using the sterilization module 300. In order to efficiently implement the sterilization function, it can be used for multiple purposes with a structure in which a plurality of sterilization modules 300 are mounted on one air purifier.

At this time, the mounting cover 500 is composed of an insulating material to prevent current generated from the photoelectronic catalyst 340 from leaking to the outside, and a porous network is provided at the ventilation portion between the air intake and air outlet sides for ventilation. An auxiliary filter 502 composed of a sieve may be further provided to block contaminated air from entering the photoelectronic catalyst.

At this time, the auxiliary filter may be provided with a rib corresponding to the position of the blade to prevent deformation due to air intake and to achieve efficient filtering while maintaining the smoothness of the auxiliary filter.

On the other hand, the mounting cover 500 has an assembly part 560 formed at the front end so that the fan 200 and the filter 400 can be integrally mounted, and the fan 200 and the sterilization module 300 are attached to the mounting cover 500. ), while the filter 400 is integrally mounted, the housing 100 is slide-inserted and taken-out so as to be assembled or separated.

The position where the filter 400 is mounted is preferably such that foreign substances contained in the air can be filtered first before the air sucked through the fan reaches the sterilization module 300, and the filter 400 is a fan ( 200) by first filtering relatively large particle foreign substances or contaminants contained in the air by placing them close to the air intake unit 120 through which the air is sucked, and then through the sterilization module 300 contained in the air Sterilization of viruses, bacteria, etc. can be achieved.

The filter 400 is composed of a pre-filter 420 that removes primary foreign substances and a carbon filter 440 that removes organic chemicals, so that step-by-step filtering is performed, and the air passing through the filter is sterilized to obtain purified air. To be able to discharge, the outer diameters of the pre-filter 420 and the carbon filter 440 are configured differently, and the inner diameter of the assembly part 560 is configured with a step having a different diameter at the part where the filter is mounted, so that the upper and lower Even when the covers are assembled together, the filters can be sequentially separated or inserted into the front of the mounting cover 500 to be reassembled.

And, as a structure for performing filtering as a preceding step of the sterilization module 300, an assembly unit 560 for mounting the filter 400 at the front end of the mounting cover 500 may be formed.

In addition, as shown in FIG. 5, a discharge filter 460 is further provided at the rear of the sterilization module 300 to add sterilization and antibacterial functions to the air purified through the air purifier. 460 is composed of a ceramic material having an organic compound removal, deodorization, and antibacterial effect, and a ceramic filter may be installed so that the fine material adheres to the wall and discharges purified air.

At this time, the discharge filter 460 is inserted into the mounting cover 500 in a state of being independently inserted into the housing so that the sterilization module is embedded, or for mounting the discharge filter at the rear end of the mounting cover 500. It may be assembled to the housing 100 as an integrated structure with the mounting cover 500 by forming another assembly part.

At this time, the housing 100 is a structure for inserting and withdrawing the mounting cover 500, and may be configured to attach and detach a cap having an air intake unit 120 or an air discharge unit 140, and slide by separating the cap. In this way, it is possible to simply separate the entire assembly configuration.

In addition, a safety valve may be added to the housing 100 to cut off the power of the sterilizing lamp in order to safely protect the user when the sterilizing lamp does not operate normally or the cap is opened, and a timer is installed to operate the sterilizing lamp. It is possible to check the time and replacement cycle with the naked eye, and this guide setting can provide the convenience of maintenance by attaching the LED display lamp to the front.

100: housing
120: air intake
140: air outlet
200: fan
300: sterilization module
320: germicidal lamp
340: photoelectronic catalyst
342: discharge tube 342a: upper body 342b: lower body
344: blade 346: ventilation groove
360: high pressure generator
380: ion generator
400: filter
420: pre-filter
440: carbon filter
460: discharge filter
500: mounting cover 502: auxiliary filter
520: upper cover
540: lower cover 542: guide
560: assembly part
580: lamp socket

Claims (6)

a housing 100 having an air intake unit 120 and an air discharge unit 140;
a fan 200 disposed inside the housing 100 and sucking external air through the air intake unit 120;
A sterilization module 300 disposed behind the fan 200 to purify the air drawn into the housing by the fan 200; And a filter 400 disposed on a path through which air is sucked and then discharged to filter pollutants contained in the air,
In the sterilization module 300, a sterilization lamp 320 is disposed at the center of the rear end of the fan 200, and a photoelectronic catalyst 340 coated with a photocatalyst is mounted so as to surround the periphery of the sterilization lamp 320. 320 is composed of a cylindrical UV-C lamp, and the photoelectronic catalyst 340 is a plurality of blades 344 radially disposed on the inner periphery of the discharge tube 342 having a metallic hollow structure to be close to the surface of the germicidal lamp. ) is formed in a tunnel shape along the longitudinal direction of the sterilization lamp, and a plurality of ventilation grooves 346 whose contact cross-sectional area is increased by the blade 344 are radially arranged to increase the air contact cross-sectional area on the path where air sterilization is performed. Tunnel-type air purifier with a tunnel-type structure with increased photocatalytic efficiency. The tunnel type air purifier according to claim 1, wherein the sterilization module (300) further comprises a high-pressure generator (360) connected to the photoelectronic catalyst (340) to increase photocatalytic efficiency. The method of claim 2, wherein the photoelectronic catalyst 340 has a structure in which the discharge tube 342 is divided into an upper body 342a and a lower body 342b, and is assembled up and down to surround the germicidal lamp 320,
The high-pressure generator 360 is a tunnel type air purifier, characterized in that configured to connect + and - electrodes to one end and the other end of the photoelectronic catalyst 340, respectively, and activate current by alternating + and - electrodes. The method of claim 3, a mounting for fixing a state in which the photoelectronic catalyst 340 is wrapped around the sterilization lamp 320 and inserting and withdrawing the assembled sterilization module 300 from the housing 100 in a sliding structure. Further comprising a cover 500,
The mounting cover 500 has a structure divided into an upper cover 520 and a lower cover 540 to surround the outer periphery of the discharge tube, so that the upper and lower bodies can be separated and assembled individually. Purifier. 5. The method of claim 4, wherein the lower body (342b) of the discharge tube (342) is seated on the lower cover (540), and a protruding guide (542) is formed on the lower cover (540) so that the lower body (342b) It induces mounting in the correct position,
The lower body (342b) is fixed by interlocking with the upper body (342a) seated on the top in a stepped structure, and the upper cover (520) is assembled to cover the top of the upper body (342a) Tunnel, characterized in that mold air purifier. The method of claim 5, wherein the mounting cover 500 has an assembly part 560 formed at the front end so that the fan 200 and the filter 400 can be integrally mounted, and the fan 200, Tunnel-type air purifier, characterized in that it can be assembled or separated while the sterilization module 300 and the filter 400 are integrally mounted and slide-inserted into and removed from the housing 100.

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