KR102327934B1 - UVC plasma sterilizer - Google Patents

Abstract

The present invention relates to an ultraviolet C (UVC) plasma air sterilizer comprising: a controller (10) which outputs a control command; a sucking unit (20) which sucks external air by control of the controller (10); a plasma generating unit (40) which generates free radical for sterilizing floating viruses in the air by the control of the controller (10); an exhaust unit (50) which discharges the free radical generated in the plasma generating unit (40) to the outside; a UV lamp (30) which outputs UVC for sterilizing the viruses adsorbed on a surface in an area by the control of the controller (10); and a diffracting unit which sequentially diffracts the UVC of 200-280 nm outputted from the UV lamp (30), controls the UVC to a 222 nm band, and outputs the same to the outside. The present invention can create a safe indoor environment.

Description

UVC plasma sterilizer {UVC plasma sterilizer}

The present invention relates to a UVC plasma air sterilizer.

In general, air conditioners suck air and blow air into various devices or indoors for the purpose of constant temperature and humidity. It is designed to control dehumidification, humidification and cleanliness.

With the development of modern technology, many pollutants, including dust, exist in the air that people breathe, and with these pollutants, people feel irritable or tired due to indoor temperature and humidity, along with a problem that harms people's health. There was a case where the efficiency of work processing was lowered.

In order to solve this problem, various air conditioners have been developed in the past, and high-tech industrial equipment such as computer rooms, semiconductor parts production plants, research laboratories, communication rooms, optical machine manufacturers, C/T and MRI imaging rooms of hospitals, and precision machine assembly equipment have been developed. It is provided in the space where many people live, such as the place where it was installed, the waiting room, airport, restaurant, theater, church, and hall, so that the surrounding temperature, humidity and cleanliness can be controlled.

However, the conventional air conditioner circulates the room by generating cold or hot air to control the temperature and humidity of the room. There were possible problems.

Republic of Korea Patent Publication No. 10--0878683 (2009.01.07)

The present invention has been devised to solve the problems of the prior art, and an object of the present invention is UVC plasma air capable of simultaneously sterilizing viruses and other harmful substances in the air and viruses attached to the surfaces of indoor and outdoor articles. To provide a sterilizer.

Examples of the present invention include the following examples in order to achieve the above object.

An embodiment of the present invention includes a controller that outputs a control command, a suction unit that sucks in external air under the control of the controller, and a plasma generator that generates free radicals that sterilize airborne viruses under the control of the controller; The exhaust unit for discharging free radicals generated from the plasma generating unit to the outside, the UV lamp that outputs UVC that sterilizes the virus adsorbed on the surface in the area under the control of the controller, and the UVC of 200~280 nm output from the UV lamp It may include a diffraction unit for sequentially diffracting the 222 nm band and outputting it to the outside.

In addition, in the above embodiment, the diffraction unit includes a first diffraction means for first diffracting UVC output from the UV lamp, a second diffraction means for second-order diffracting the first-order diffracted UVC, and third-order diffraction for the second-order diffracted UVC It may include a third diffraction means.

Here, the first diffraction means may be a reflective surface and a micro-perforated network having a plurality of micro-perforations, and the second diffraction means may be an optical filter made of a carbon material.

And, it is characterized in that the fine perforation is hexagonal.

Therefore, the present invention can sterilize the indoor air and the surface of the article at the same time to create a safer indoor environment, and users can sterilize the air and the surface of the article at the same time using a single device, so it is convenient to use. have.

1 is a block diagram schematically illustrating a UVC plasma air sterilizer according to the present invention.
2 is a block diagram illustrating a diffraction unit.
3 is a view showing a part of the first diffraction means.
4 is a view showing a third diffraction means.
5 is a flowchart illustrating a sterilization method using a UVC plasma air sterilizer according to the present invention.

The terms or words used in the present specification and claims are not to be construed as limited in their ordinary or dictionary meanings, and on the principle that the inventor can appropriately define the concept of the term in order to best describe his invention. It should be interpreted as meaning and concept consistent with the technical idea of the present invention.

Throughout the specification, when a part "includes" a certain element, it means that other elements may be further included, rather than excluding other elements, unless otherwise stated.

In addition, 'articles' used throughout the specification means anything arranged in an indoor space in which the plasma air sterilizer to which the present invention is applied, such as furniture, electronic products, indoor floors, walls and ceilings, and interior accessories.

Hereinafter, a preferred embodiment of the UVC plasma air sterilizer according to the present invention will be described with reference to the accompanying drawings.

1 is a block diagram schematically illustrating a UVC plasma air sterilizer according to the present invention.

1, the present invention is a controller 10, a suction unit 20 for sucking air, a UV lamp for outputting UVC, a plasma generating unit 40 for generating plasma, and for discharging air It includes an exhaust unit 50 and a diffraction unit 60 that diffracts UV output from the UV lamp 30 .

The controller 10 outputs a driving command according to the input command and the set program. For example, the controller 10 may output a set command according to a command input through the input panel. Alternatively, the controller 10 may automatically output a setting command according to a detection signal of an installed sensor.

Here, the sensor may be composed of a plurality of sensors capable of detecting fine dust and/or smoke, temperature, flame, and human body contained in indoor air.

In addition, the controller 10 may further include a wireless communication module to enable communication with the user's mobile terminal or remote control. That is, the controller 10 of the present invention may include a plurality of sensors and a wireless communication module to automatically purify and/or sterilize indoor air by detecting an abnormal situation in the room, or a wireless communication module or input panel (eg, For example, the control command may be output according to the user's manual command received through the touch panel.

The suction unit 20 sucks in indoor air according to a command of the controller 10 . To this end, the suction unit 20 may be formed as a suction fan and a motor.

The UV lamp 30 outputs UVC (Ultraviolet C) having a wavelength of 200-290 nm under the control of the controller 10 . Here, the UV lamp 30 is installed as a plurality of lamps to output light. The output light is outputted to the outside while being sequentially diffracted by the diffraction unit 60 as UVC to sterilize and/or sterilize the virus adsorbed to a plurality of unspecified surfaces.

The diffraction unit 60 diffracts UVC output from the UV lamp and changes it into a wavelength band harmless to the human body. In general, while UV is known to cause discoloration of the skin, it has sterilizing power. In particular, UVC below 200-230 nm (eg, 222 nm) is known to be harmless to the human body because it cannot pass through the dead cell layer on the skin surface or the tear layer on the surface of the eye.

Therefore, the diffraction unit 60 limits the UVC band of 200 to 280 nm output from the UV lamp 30 to limit the wavelength band to light of 200 to 230 nm (preferably 222 nm). .

2 is a block diagram showing the diffraction unit 60, FIG. 3 is a view showing a part of the first diffraction means, and FIG. 4 is a view showing the third diffraction means.

2 to 4, the diffraction unit 60 includes a first diffraction unit 61 for first diffracting the light output from the UV lamp 30, a second diffraction unit 62 for diffracting the second order, and , and a third diffraction means 63 for third-order diffraction.

The first diffraction means 61 first diffracts the UVC band of 200 to 280 nm output from the UV lamp 30 , for example. Here, the first diffraction means 61 is preferably a photoelectric filter made of an alloy of copper and titanium. In particular, in the present invention, the first diffraction means 61 may be implemented as a fine perforated network having a reflective surface 611 in which a plurality of polygonal through-holes 612 are formed as shown in FIG. 3 .

The fine perforated network is a material of copper and titanium alloy and can act as an antibacterial and sterilizing agent upon contact with airborne viruses according to the photoelectric effect with UVC.

In addition, the first diffraction means 61 reflects UVC on the reflective surface 611 other than the perforation 612 , so that it is also possible to secondary sterilize the floating virus.

The second diffraction means 62 is an optical filter made of a carbon material, and second diffracts UVC first diffracted by the first diffraction means 61 to make a stable UVC wavelength (for example, 200 to 230 nm). In addition, the second diffraction means 62 can tertiarily sterilize the floating virus by reflecting the UVC that is first diffracted by forming a reflective surface on the surface.

The third diffraction means 63 forms an outer case of the air sterilizer, but forms a reflective surface 631 on the surface, and forms a plurality of perforations 632 on the reflective surface to perform third-order diffraction. For example, the third diffraction means 63 serves to limit the wavelength of the second-order diffracted UVC of 200 to 230 nm as a plurality of perforations 632 implemented asymmetrically and to diffuse it to the outside. Here, as the third diffraction means 63, for example, an electro-galvanized steel sheet material may be applied.

The plasma generating unit 40 generates plasma and adsorbs airborne viruses in the inhaled air to perform sterilization and sterilization. Here, the plasma generating unit 40 generates free radicals, and the generated free radicals are discharged to the outside through the exhaust unit 50 .

The exhaust unit 50 includes one or more exhaust fans and a motor to discharge free radicals generated by the plasma generator 40 to the outside under the control of the controller 10 .

That is, the present invention can sterilize floating viruses in the air using plasma and sterilize viruses adsorbed on the surface of a large number of unspecified areas through UVC.

In particular, the present invention is characterized by increasing the sterilization power of viruses while harmless to the human body by adjusting the wavelength band of UV to have a band of 222 nm or less harmless to the human body through the process of 3rd diffraction of UV of 200 to 280 nm.

Hereinafter, a sterilization method made through the above configuration 0 will be described.

5 is a flowchart illustrating a sterilization method using a UVC plasma air sterilizer according to the present invention.

5, the present invention comprises a step S10 of inhaling external air, a step S21 of outputting UV, a first diffracting step S22, a second diffracting step S23, a third diffracting step S24, It may include a step S25 of sterilizing the surface, a step S31 of generating plasma, a step S32 of discharging free radicals, and a step S33 of sterilizing the virus in the air.

Here, the order of the steps S10, S21 to S25, and S31 to S33 is not fixed and can be modified.

Step S10 is a step in which the intake unit is driven under the control of the controller 10 to suck in external air. Here, the present invention causes a flow of air in the room while sucking and discharging indoor air, and allows free radicals to be diffused in the air through such a flow of air.

Step S21 is a step of outputting UVC from the UV lamp 30 . At this time, the output UVC has a band range of 200 to 280 nm. At this time, the UVC output from the UV lamp 30 primarily sterilizes airborne viruses in the inhaled air and/or outside air.

In step S22, the UVC output from the UV lamp 30 is first diffracted. At this time, the first diffraction means 61 performs primary diffraction using the reflective surface and the polygonal micro-holes, and the UVC reflected through the reflective surface sterilizes the airborne virus secondary. At this time, the first diffraction means 61 is a copper-titanium alloy or an alloy of titanium dioxide and copper oxide to generate a photoelectric effect to increase the sterilization power.

Step S23 is a step of second diffracting the first-order diffracted UVC. The second diffraction means 62 second-order diffracts UVC diffracted by the first diffraction means 61 and stabilizes it to have a band of 230 nm or less.

Step S24 is a third-order diffraction step. Here, the third diffraction means 63 is a panel constituting the outer surface of the air sterilizer, and is made of a plurality of perforations made asymmetric with the reflective surface on the surface. Therefore, the third diffraction means 63 performs third-order diffraction using the hole and the reflective surface from which the second-order diffracted UVC is output, and adjusts and diffuses the wavelength band to 222 nm so that it can be irradiated to a large number of unspecified areas.

Step S25 is a step of sterilizing the virus adsorbed on a number of surfaces by 3rd-order diffracted UVC. UVC diffused to the outside is irradiated to the surface within the installed area and sterilized.

Step S31 is a step of generating free radicals using external air sucked under the control of the controller 10 . The plasma generator 40 is operated under the control of the controller 10 to generate free radicals. Here, step S31 may be performed simultaneously or selectively with step S21.

Step S32 is a step in which the exhaust unit 50 is operated under the control of the controller 10 to discharge free radicals generated in the plasma generator 40 to the outside.

Step S33 is a step for sterilizing free radicals discharged to the outside by adsorbing them to viruses floating in the air.

That is, steps S21 to S25 are a process of sterilizing viruses adsorbed on multiple surfaces in unspecified areas by adjusting the wavelength band of UVC to a harmless band to the human body and outputting it, and steps S31 to S33 are free radicals generated in the air. This is a process for sterilizing airborne viruses.

As such, the present invention can sterilize airborne viruses and adsorbed viruses on the surface as one device, so that the user can omit the process of washing and disinfecting the surface by hand, so that a large number of spaces and large areas are densely populated. When installed in a space, it is possible to prevent the spread of viruses and promote convenience in management and use.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications, changes and substitutions will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains.

Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

10: controller
20: suction part
30: UV lamp
40: plasma generating unit
50: exhaust
60: diffraction part
61: first diffraction means
62: second diffraction means
63: third diffraction means

Claims (6)

a controller 10 for outputting a control command;
a suction unit 20 for sucking outside air under the control of the controller 10;
a plasma generating unit 40 for generating free radicals that sterilize airborne viruses under the control of the controller 10;
an exhaust unit 50 for discharging free radicals generated by the plasma generating unit 40 to the outside;
a UV lamp 30 for outputting UVC that sterilizes viruses adsorbed to the surface in the area under the control of the controller 10; and
UVC plasma air sterilizer comprising a;
The method according to claim 1, The diffraction unit (60)
The first diffraction means 61 for first diffracting the UVC output from the UV lamp 30, the second diffraction means 62 for second-order diffracting the first-order diffracted UVC, and the third-order for the second-order diffracted UVC UVC plasma air sterilizer comprising; a third diffraction means (63) for diffracting.
The method according to claim 2, the first diffraction means (61)
A reflective surface 611 and a fine perforated network having a plurality of fine perforations 612; UVC plasma air sterilizer, characterized in that.
The method according to claim 2, wherein the second diffraction means (62) is
optical filter made of carbon; UVC plasma air sterilizer, characterized in that.
The method according to claim 3, The micro-perforated
What is polygonal; UVC plasma air sterilizer characterized in that.
The method according to claim 3, wherein the third diffraction means
a plurality of perforations 632 formed asymmetrically, and a panel 631 having a reflective surface; UVC plasma air sterilizer, characterized in that.

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