KR20220036375A - In-ceiling type indoor air sterilization system - Google Patents

Abstract

The present invention relates to a ceiling-mounted indoor air sterilization system. Specifically, the ceiling-mounted indoor air sterilization system comprises a case (10), a filter (20), at least an air blower (30), at least a UVC lamp (40), a human body sensor (50), an air blower driving unit (31), a UVC lamp driving unit (41), and a control unit (60). Therefore, when a person coming indoors is sensed by the human body sensor (50), the ceiling-mounted indoor air sterilization system embedded in an indoor ceiling surface forcibly circulates indoor air until the person goes out. Also, the ceiling-mounted indoor air sterilization system radiates UVC rays having a predetermined wavelength. Therefore, the ceiling-mounted indoor air sterilization system automatically sterilizes and removes various germs and viruses contained in the indoor air, thereby, preventing infection of unspecified people due to various infectious germs and viruses contained in the indoor air and preventing secondary infection of other people caused by already infected people.

Description

In-ceiling type indoor air sterilization system

The present invention relates to a ceiling-embedded indoor air sterilization system, and more particularly, to a ceiling buried in various spaces, such as inside a hospital, which is a representative source of spread of various viruses, including general homes and offices, so that people can enter the room. From the moment it enters the room to the moment it exits, it continuously forcibly circulates the indoor air in the space where the UVC ultraviolet lamp with an ultraviolet wavelength of about 100 to 280 nm is operating, and sterilizes and sterilizes various bacteria and viruses contained in the indoor air. By sterilizing and sterilizing various infectious bacteria more efficiently through the method of determining the number of people and the presence or absence of infected persons and automatically adjusting the circulation speed or amount of indoor air in response, various infectious agents contained in indoor air It can prevent infection of unspecified people due to bacteria and viruses as well as secondary transmission by pre-infected people. In particular, by providing a clean room to manage air quality through effective sterilization of various spaces in the hospital, it is Ceiling buried indoor air sterilization system invented to respond to situational variables such as hospitalization and to prevent social and economic loss in advance through automatic sterilization through UVC ultraviolet rays rather than sterilization method by direct input of management personnel is about

The World Health Organization (WHO) distinguishes between the first human infection and the viral transfer of influenza as a six-step process leading to a viral pandemic.

This is because there are many cases where the virus is transmitted from animals to humans, and the infection of the new virus ends as a global epidemic through the direct spread of the animal-infecting virus to humans.

In order to cope with the spread of infectious diseases in Korea, the government has set the 'national infectious disease disaster stage' in 4 stages of 'interest-caution-vigilance-serious'.

In the event of an outbreak of a new virus-related infectious disease abroad or an unexplained infection in Korea, the 'interest' stage is activated to monitor signs.

In the event of an influx of a new infectious disease from abroad or an outbreak of a new infectious disease, it has been upgraded to 'caution'.

In the case of an epidemic spreading to other regions, it becomes a 'warning' stage, and a 24-hour emergency quarantine system is maintained by strengthening the countermeasure headquarters and operating a pan-government cooperation system.

As interest in medical-related infections increases, infection control is being emphasized as an essential role played by medical institutions.

Infection control is an area that the Ministry of Health and Welfare and the Central Quarantine Countermeasure Headquarters focus on, and in order to strengthen infection control, the establishment of an infection control office and an 'Infection Control Committee' was made compulsory for hospitals with 200 beds or more.

Hospital infection control is a medical institution accreditation system, medical institution evaluation and accreditation system, which is a device for medical institutions to guarantee the level of patient safety and improvement of the quality of medical services through accreditation of medical services. As a system to provide high-quality services to users), as of February 2013, 147 medical institutions, including Seoul National University, have obtained certification, and the prescribed infection control is performed voluntarily and efficiently.

Infectious disease and hospital facility management, operation process, system & policy related to hospital construction facilities, hospital construction as internal and external factors of the spread of infection (secondary infection) damage in hospitals as well as indoors of various buildings and facility environment (Structure) are recognized as having the most influence in the order of.

Looking at the relationship between MERS and hospital construction, after the first MERS patient appeared on May 20, 2015, a total of 186 people were infected (as of October 27, 2015, 37 deaths, 4 patients under treatment, and discharges) 145), and in Korea, it is estimated that about 15,000 people die every year from hospital-acquired infections, which is more than three times the number of deaths due to traffic accidents (4,762 as of 2014).

Looking at the virus spread path and facility environment in hospitals, the spread of infectious pathogens is controlled primarily from the onset of the infected person to the spread of infection by medical staff and contacts to patients and high-risk groups and spread to an unspecified number of multi-use facilities. It leads to the occurrence of a social panic situation that cannot be done, and it has the characteristics of not only creating national anxiety, but also being linked to economic and social problems.

In the case of patients with highly contagious respiratory diseases such as MERS or Coronavirus Infectious Disease-19, as with general patients, they pass through outpatient clinics or emergency facilities for the purpose of primary treatment and treatment. It is impossible to block the spread of infection through the air, even in hospital facilities with the best negative pressure facilities, unless you are admitted to a hospital according to the measures.

Therefore, in the outpatient department and emergency room of the hospital, including the screening room, space and movement separation as well as non-face-to-face facilities to minimize airborne transmission are essential. Do.

In addition, air-conditioning and ventilation-related hospital facilities require supply and exhaust ports, negative pressure facilities, and recirculation air conditioning systems.

However, in the case of Patient No. 1 at Pyeongtaek St. Mary's Hospital during the MERS outbreak, it is estimated that the concentration of MERS-infecting bacteria in the inpatient ward was increased due to the absence of a separate exhaust vent in the private room and the small window, and the MERS virus was detected in the ceiling air conditioner and doorknob. .

In addition, in the case of COVID-19, which is currently in vogue, many people who were indoors without wearing a mask became infected with COVID-19 due to the operation of the air conditioning system.

The probability of being infected with respiratory infections such as Coronavirus Infectious Disease-19 and MERS is proportional to the number of infected bacteria inhaled for a certain period and the infectivity of the infected bacteria, and is inversely proportional to the person's resistance (immunity). Wells-Riley equation (WHO, 2007))

A negative pressure facility is a facility that artificially drops the indoor air pressure and prevents the spread of bacteria and viruses inside the installed space to the outside.

The negative pressure facility is designed so that the air mixed with the virus exhaled by the patient's breath does not go out and flows to the purification facility.

In general, even invisible bacteria and viruses are filtered and discharged through a HEPA filter (Highly Efficient Particulate Air Filter; HEPA).

In addition, an air conditioning system (Duct System) is a facility that controls the temperature or removes dust through ventilation by introducing hot or cold air into a room such as a general house, office or hospital room through a ceiling pipe.

The recirculation-type central air conditioning system has the advantage of saving energy by reusing the air from the room, including the private room, but there is a risk that infectious bacteria can spread throughout the room as well as the hospital without being filtered.

In order to prevent the spread of the virus, it is necessary to adopt an all-out air system without recirculation (a method that uses only outdoor air).

On the other hand, various diseases are newly generated by various harmful viruses and bacteria due to the activation of human and material exchanges between countries in recent years and environmental pollution.

In particular, the recent and prevalent disease, Coronavirus Infectious Disease-19 (COVID-19), the 2003 SARS (severe acute respiratory syndrome) and the 2012 MERS (Middle East Respiratory Syndrome), Avian influenza, which is infectious to humans as well as birds, is caused and transmitted by viruses.

Viruses that cause respiratory diseases not only have very high contagious properties, but also show various clinical features that can lead to death from asymptomatic infection to severe infection.

Clinical symptoms caused by each virus vary from common cold symptoms to pneumonia and usually recover within a few days, but cough and fatigue can last for more than 2 weeks, and abdominal pain, vomiting, and convulsions are rare. As a complication, pneumonia is the most common, and there are exacerbation of underlying diseases and death due to complications in the elderly or chronically ill.

The recent transmission method of viruses that cause acute respiratory diseases is known as droplet infection transmitted through bodily fluids such as saliva or runny nose.

Therefore, although the transmission power is lower than that of airborne infections that float in the air, it is generally known that there is a risk of infection if it is within 2-3 meters of an infected person.

In response to this, the World Health Organization (WHO) recommended that 'Airborne Precautions' for MERS on June 1, 2015 is necessary. has occurred and is contagious.

The concept of space sterilization has emerged in order to block infection by these various harmful viruses and bacteria, and various air purifiers are used for such space sterilization.

As an example, Korean Patent Registration No. 10-1039069 discloses a plasma processor for air cleaning and sterilization. Ozone generated during plasma discharge has the advantage of effectively removing bacteria or viruses in the air. However, when the concentration of ozone exceeds a certain value when used indoors, harmfulness to the human body occurs as a problem.

Domestic Registered Utility Model Publication No. 20-0372919 (January 04, 2005) Domestic Registered Utility Model Publication No. 20-0397497 (September 27, 2005) Domestic Patent Publication No. 10-1062801 (August 31, 2011) Domestic Patent Publication No. 10-2020-0020452 (February 26, 2020) Domestic Patent Publication No. 10-1039069 (May 30, 2011)

The present invention has been devised to solve the problems of the related art, and is installed in the form of embedding in the ceiling of various spaces such as inside a hospital, which is a representative source of spread of various viruses including general homes and offices, When a human body sensor detects a person entering the room, the indoor air is continuously forcibly circulated through the space in which a UVC UV lamp with an UV wavelength of about 100 to 280 nm is operated from the moment they leave the room, and is included in the indoor air. By sterilizing and sterilizing various bacteria and viruses, it is possible to prevent in advance the infection of unspecified people due to various infectious bacteria and viruses contained in the indoor air, as well as to prevent secondary transmission of other people by pre-infected people. An object of the present invention is to provide a ceiling-mounted indoor air sterilization system.

Another object of the present invention is to determine the number of people in the room and the presence or absence of infection through a thermal imaging camera or a CO₂ detection sensor, and automatically adjust the circulation speed or amount of the indoor air in response thereto. As it can increase the sterilization efficiency of the air conditioner, it can sterilize and sterilize various infectious bacteria more efficiently, so it is possible to prevent infection of unspecified people due to various infectious bacteria and viruses contained in indoor air as well as secondary transmission by pre-infected persons. , in particular, it can provide a clean room to manage air quality through effective sterilization of various spaces in the hospital, so it can respond to situational variables of infectious bacteria such as hospital treatment, surgery, and hospitalization, and sterilization by direct input of management personnel It is possible to provide a ceiling-mounted indoor air sterilization system that can prevent social and economic losses in advance through automatic sterilization through UVC ultraviolet rays rather than a method.

Another object of the present invention is to continuously count the usage time after replacing the UVC UV lamp and filter, and display it in a way such as light, text, or sound, or wirelessly to the manager at a remote location when the set maximum service life time is reached. By enabling automatic transmission through communication, UVC UV lamps and filters can be replaced at the correct time. A ceiling-mounted indoor air sterilization system can be provided.

Another object of the present invention is to not only efficiently sterilize indoor air using UVC ultraviolet rays, but also to prevent external leakage of UVC ultraviolet rays, while being integrally installed on the rear surface of the ceiling-embedded lighting lamp without affecting indoor lighting. It is possible to prevent damage from UVC ultraviolet rays completely, as well as to prevent damage to the indoor environment due to the installation of the system of the present invention because only the lighting is exposed on the ceiling surface of the room regardless of the installation of the system of the present invention. It is possible to provide a ceiling-mounted indoor air sterilization system that can maintain the beauty of the indoor environment as it is.

Another object of the present invention is to further provide an air passage time delay means having a predetermined shape around the UVC UV lamp in the case, so that the indoor air forcibly introduced by the blower is lit around the UVC UV lamp. When passing, the flow flows in a wavy shape and part of it can be diffracted at the same time, so the contact time between the air passing through the inside of the case and UVC ultraviolet rays can be delayed as much as possible, thereby increasing the sterilization efficiency of the indoor air. Therefore, it is possible to sterilize and sterilize various infectious bacteria more efficiently, so a ceiling-mounted indoor air sterilization system that can prevent infection of unspecified people due to various infectious bacteria and viruses contained in indoor air as well as secondary transmission by pre-infected persons. can provide

In addition, the detailed object of the present invention will be clearly grasped and understood by experts or researchers in the technical field through the detailed contents described below.

In order to achieve the above object, there is provided a ceiling-embedded indoor air sterilization system of the present invention, comprising: a case having a rectangular tube structure having air inlets and air outlets formed on both sides and being embedded in the ceiling of the room; a filter installed in the upper part of the air inlet inside the case and filtering various bacteria and viruses including fine particle dust contained in the air flowing into the room; At least one of at least one that operates in response to the output signal of the control unit in a state installed on the upper part of the filter, forcibly sucks indoor air through the air inlet of the case, and blows it toward the UVC UV lamp and the air outlet to circulate the indoor air. with blower; In the case where it is installed in the longitudinal direction in the space formed between the outlet of the blower and the air outlet, the light turns on and off in response to the output signal of the control unit, and UVC ultraviolet rays having a predetermined wavelength are emitted to the air forcibly circulated by the blower. at least one UVC UV lamp for irradiating to remove various bacteria and viruses in the air; a human body detection sensor for detecting whether or not there is a person in the room with an electrical signal; When a human body detection signal indicating that there is a person in the room is input from the human body detection sensor, the blower is driven through the blower driving unit and at the same time the UVC UV lamp is turned on through the UVC UV lamp driving unit. If the human body detection signal is not input, the blower and a control unit that stops and turns off the UVC UV lamp, respectively.

In addition, in the space between the air inlet and the air outlet of the case, a lighting lamp receiving groove is further formed, and a lighting lamp is detachably installed in the lighting lamp receiving groove to form a lighting lamp integrally.

In addition, a thermal imaging camera that emits infrared rays to the subject inside or outside the case to obtain different color images according to the temperature of infrared rays emitted from the subject and transmits the data to the controller is further installed, and the controller causes the controller to Normally, due to people entering the room, the image and body temperature data detected through the thermal imaging camera are stored in real time in the image and body temperature storage unit while the blower is driven and the UVC UV lamp is turned on at the same time. When one or more of the people exhibits a temperature higher than a predetermined body temperature, the number of blowers is automatically changed through the blower driving unit in response to the number of people or in response to the number of people entering the space, or a blower It is characterized in that the number of rotations of the air conditioner is automatically changed through proportional control to automatically change the circulation amount of indoor air according to the number of persons with abnormal body temperature or the number of persons entering the room.

In addition, a CO₂ detection sensor that emits infrared rays of a frequency absorbed by carbon dioxide inside or outside the case, measures the amount of infrared rays detected without being absorbed by carbon dioxide molecules and transmits them to the control unit, and causes the control unit to normally The number of people entering the room was determined through the amount of carbon dioxide detected by the CO₂ sensor while driving the blower and turning on the UVC UV lamp at the same time as people came into the room, and the amount of carbon dioxide detected was the standard number of people. In case of abnormality, the number of blowers driven by the blower driving unit is changed in response to the added number of people, or the number of rotations of the blower is automatically changed through proportional control so that the circulation amount of indoor air is automatically changed to match the number of people entering the room. characterized.

At this time, as the blower, a plurality of blowers having blades exposed to the outside and each having blower fans capable of on/off control are installed, or blades are not exposed to the outside and the speed of the motor is proportionally controlled It is characterized in that it is equipped with a blower fan that can be controlled through the

In addition, a key input unit capable of inputting various key signals to the control unit on the outside of the case; In response to the output signal of the control unit, the display unit for displaying various status information including the operating status of the blower and UVC UV lamp; characterized in that it is further installed.

In this case, the display unit is characterized in that it is formed of a touch screen on which the key input unit is mounted.

In addition, the key input unit is formed as a remote control, and the input unit of the control unit is characterized in that the IR receiver for receiving the key signal of the remote control by infrared rays is further installed.

In addition, whenever the UVC UV lamp is turned on in the input and output units of the control unit, a UVC UV lamp lighting time accumulation unit continuously counts and automatically stores the accumulated time using a timer provided in the control unit; As a result of the determination by the control unit, it is determined that the cumulative lighting time of the current UVC UV lamp accumulated in the UVC UV lamp lighting time accumulation unit exceeds the maximum service life time input by itself, and when a predetermined output signal is generated, it is lighted. A UVC UV lamp replacement time notification unit that notifies or displays with or text or sound is further installed, but in the key input unit, whenever the UVC UV lamp is replaced, the accumulated lighting time in the UVC UV lamp lighting time accumulation unit is reset. It is characterized in that the UVC ultraviolet lamp lighting time reset key that can be given is further installed.

In addition, the input/output unit of the control unit includes: a filter usage time accumulation unit for automatically storing the elapsed time after filter replacement using a timer provided in the control unit; As a result of the determination by the control unit, it is determined that the current filter usage time accumulated in the filter usage time accumulation unit exceeds the maximum usage time inputted by itself, and when a predetermined output signal is generated, it is notified by light, text, or sound. or a filter replacement time notification unit that displays the filter replacement time; but, in the key input unit, a filter usage time reset key capable of resetting the accumulated filter usage time in the filter usage time accumulator each time the filter is replaced is further installed characterized by one.

In addition, a wired or wireless communication module is further installed in the input and output units of the control unit, and as a result of the determination of the control unit, it is time to replace the UVC UV lamp currently in use or the filter currently in use is replaced. Thus, it is characterized in that the current operating state information can be automatically transmitted to a remote manager computer or terminal through the wired or wireless communication module.

At this time, the filter consists of only a HEPA filter, or a primary pre-filter that removes large particles of dust contained in the air, and a secondary that removes harmful microorganisms and radioactive dust that have passed through the primary pre-filter It is characterized in that it is constructed and installed with a HEPA filter and a tertiary photocatalytic zeolite filter that removes viruses and bacteria that have passed through the secondary HEPA filter.

In addition, a temperature detection sensor and a humidity detection sensor are further installed inside or outside the case to respectively detect the temperature and humidity of the indoor air and transmit it to the control unit, and the display unit receives the control of the control unit to control the temperature and humidity of the room. It is characterized in that it is further equipped with a function of displaying the humidity.

In addition, when indoor air forcibly introduced by the blower passes through the periphery of the UVC UV lamp being turned on around the UVC UV lamp in the case, the air flow is made to flow in a wavy shape and at the same time a part is diffracted It is characterized in that it further comprises an air passage time delay means for maximally delaying the contact time between the air passing through the inside of the case and the UVC ultraviolet rays irradiated from the UVC ultraviolet lamp.

At this time, the air passage time delay means is formed of a plurality of air flow conversion plates formed to be inclined at a predetermined angle corresponding to the flow direction of air from the ceiling surface and the bottom surface of the case, and the air flow conversion plates are the cloth inside the case. It is characterized in that it is cross-molded with a predetermined distance from each other between the front and bottom surfaces.

In addition, an automatic and manual mode selection key is further installed in the key input unit, so that when automatic mode is selected, the UVC ultraviolet lamp is turned on and off and the operation of the blower is automatically controlled by a control program previously input in itself, and manual mode selection It is characterized in that the operation is controlled only by the key input unit.

As described above, according to the ceiling-embedded indoor air sterilization system of the present invention, first, it is installed in the form of embedding in the ceiling of various spaces, such as inside a hospital, which is a representative source of spread of various viruses, including general homes and offices. , when a person entering the room is detected by the human body sensor, it continuously forcibly circulates the indoor air through the space where the UVC ultraviolet lamp with an ultraviolet wavelength of about 100 to 280 nm is operating from the moment it leaves the room until it leaves the room. By sterilizing and sterilizing various bacteria and viruses, it is possible to prevent in advance the infection of unspecified people due to various infectious bacteria and viruses contained in the indoor air, as well as to prevent secondary transmission of other people by pre-infected people. It can be prevented.

Second, in the present invention, the number of people in the room and the presence or absence of infection are determined through a thermal imaging camera or a CO₂ detection sensor, and in response, the circulation speed or amount of the indoor air is automatically adjusted to sterilize the indoor air. As the efficiency can be increased, it is possible to more efficiently sterilize and sterilize various infectious bacteria, so it is possible to prevent infection of unspecified people due to various infectious bacteria and viruses contained in indoor air, as well as secondary transmission by pre-infected persons. It is possible to provide a clean room to manage air quality through effective sterilization of various spaces in the hospital, so it is possible to respond to situational variables of infectious bacteria such as treatment, surgery, and hospitalization in the hospital. It is possible to prevent social and economic loss in advance through automatic sterilization through UVC ultraviolet light.

Third, in the present invention, the usage time is continuously counted after replacement of the UVC UV lamp and filter, and when the set maximum service life time is reached, it is displayed in a manner such as light, text, or sound, or through wireless communication to a remote manager. By enabling automatic delivery, it is possible to replace UVC UV lamps and filters at the correct time, greatly increasing the indoor air sterilization efficiency using UVC UV rays, as well as greatly improving the efficiency of system management.

Fourth, in the present invention, it is possible to effectively sterilize indoor air by using UVC ultraviolet rays while integrally installing it on the rear surface of the ceiling-embedded lighting lamp without any hindrance to indoor lighting, as well as to prevent external leakage of UVC ultraviolet rays. Therefore, it is possible to completely block the damage caused by UVC ultraviolet rays, as well as to prevent damage to the indoor environment due to the installation of the system of the present invention because only the lighting is exposed on the ceiling surface of the room regardless of the installation of the system of the present invention. The beauty of the indoor environment can be maintained as it is.

Fifth, in the present invention, by providing an air passage time delay means having a predetermined shape around the UVC UV lamp in the case, when the indoor air forcibly introduced by the blower passes through the periphery of the UVC UV lamp being turned on , as the flow flows in a wavy shape and at the same time it can be made to diffract some, the contact time between the air passing through the inside of the case and UVC ultraviolet rays can be delayed as much as possible, so that the sterilization efficiency of the indoor air can be increased by that much, so it is more efficient This is a very useful invention, as it can sterilize and sterilize various infectious bacteria and prevent secondary transmission by pre-infected persons as well as infection of unspecified people due to various infectious bacteria and viruses contained in indoor air.

Other effects of the present invention will be clearly understood and understood by an expert or researcher in the art through the specific details described below, or during the process of implementing the present invention.

1 is an overall electrical block diagram of a ceiling-mounted indoor air sterilization system to which the present invention is applied.
2 and 3 are schematic front and plan sectional views of a ceiling buried indoor air sterilization system to which the present invention is applied.

Since the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used in the present application is used to describe specific embodiments of the terminal, and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification is present, and includes one or more other features or It should be understood that the existence or addition of numbers, steps, operations, components, parts, or combinations thereof does not preclude the possibility of addition.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

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

1 is a block diagram showing the entire electrical block diagram of a ceiling buried indoor air sterilization system to which the present invention is applied, and FIGS. 2 and 3 are schematic front and plan sectional views of the ceiling buried indoor air sterilization system to which the present invention is applied. will be.

According to this, the ceiling-embedded indoor air sterilization system of the present invention comprises:

a case 10 having a rectangular tube structure in which an air inlet 11 and an air outlet 12 are formed on both sides and embedded in the ceiling of the room;

a filter 20 having a shape installed on the upper portion of the air inlet 11 inside the case 10 and filtering various bacteria and viruses, including fine particles of dust contained in the air flowing into the room;

It is operated in response to the output signal of the control unit 60 in a state installed on the upper part of the filter 20, and after forcibly sucking indoor air through the air inlet 11 of the case 10, a UVC ultraviolet lamp 40 ) and at least one blower 30 which blows toward the air outlet 12 and circulates indoor air;

In the case 10, in the state installed in the longitudinal direction in the space formed between the outlet of the blower 30 and the air outlet 12 in the case 10, the light turns on and off in response to the output signal of the control unit 60, and the blower 30 At least one UVC UV lamp 40 for removing various bacteria and viruses in the air by irradiating UVC UV light having a wavelength of 100 to 280 nm to the air forcibly circulated by the <RTI ID=0.0>

a human body detection sensor 50 for detecting whether there is a person in the room with an electrical signal;

When a human body detection signal that there is a person in the room is input from the human body detection sensor 50, the blower 30 is driven through the blower driving unit 31 and the UVC UV lamp is driven through the UVC UV lamp driving unit 41 at the same time. (40) is turned on, and when no human body detection signal is input, the blower 30 and the UVC UV lamp 40 are stopped and turned off, respectively, and the control unit 60 is configured as;

In addition, a lighting light receiving groove 13 is further formed in the space between the air inlet 11 and the air outlet 12 of the case 10 , and the lighting 70 is detachable from the lighting light receiving groove 13 . It is characterized in that it is installed to form an integrated lighting lamp.

In addition, the thermal imaging camera 80 that emits infrared rays to the subject inside or outside the case 10 to obtain different color images according to the temperature of infrared rays emitted from the subject and transmits the data to the controller 60 ) through the thermal imaging camera 80 while the control unit 60 drives the blower 30 and turns on the UVC ultraviolet lamp 40 at the same time as people usually enter the room. The detected image and body temperature data are stored in the image and body temperature storage unit 81 in real time, as well as when any one or more of the people in the room exhibits an abnormal body temperature, in response to the number of people or in a specified space In response to the number of people entering, the number of blowers 30 is automatically changed through the blower driving unit 31, or the rotation speed of the blower 30 is automatically changed through proportional control to increase the circulation amount of indoor air. It is characterized in that it is automatically changed according to the number of people with abnormal body temperature or the number of people entering the room.

In addition, a CO₂ detection sensor 90 that emits infrared rays of a frequency absorbed by carbon dioxide inside or outside the case 10, measures the amount of infrared rays detected without being absorbed by carbon dioxide molecules, and delivers them to the control unit 60. Further, the control unit 60 drives the blower 30 and turns on the UVC ultraviolet lamp 40 at the same time as people normally enter the room. Detection through the CO₂ detection sensor 90 The number of people entering the room is determined through the amount of carbon dioxide used, and when the detected amount of carbon dioxide is greater than or equal to the standard number of people, the number of driving of the blower 30 is changed through the blower driving unit 31 in response to the added number of people, or the blower It is characterized in that the rotation speed of (30) is automatically changed through proportional control to automatically change the circulation amount of indoor air according to the number of people entering the room.

At this time, as the blower 30 , a plurality of blowers having a shape in which the blades are exposed to the outside and each having on/off control possible are installed, or have a shape in which the blades are not exposed to the outside and the speed of the motor is proportional. It is characterized in that a blower fan that can be controlled through a control method is installed.

In addition, a key input unit 100 capable of inputting various key signals to the control unit 60 on the outside of the case 10; In response to the output signal of the control unit 60, the display unit 110 for displaying various status information including the operating status of the blower 30 and the UVC ultraviolet lamp 40; characterized in that it is further installed.

In this case, the display unit 110 is characterized in that it is formed as a touch screen on which the key input unit 100 is mounted.

In addition, the key input unit 100 is formed of a remote control 101, and the input unit of the control unit 60 is characterized in that the IR receiver 102 for receiving the key signal of the remote control 101 in infrared rays is further installed. do.

In addition, whenever the UVC UV lamp 40 is turned on in the input and output units of the control unit 60, the accumulated time is continuously counted using a timer provided in the control unit 60, and the UVC UV lamp lighting time is automatically stored. an accumulation unit 42; As a result of the determination in the control unit 60, it is determined that the cumulative lighting time of the current UVC UV lamp 40 accumulated in the UVC UV lamp lighting time accumulation unit 42 exceeds the maximum service life time input by itself, and When a predetermined output signal is generated, a UVC UV lamp replacement time notification unit 43 that notifies or displays it with light, text, or sound; It is characterized in that the UVC ultraviolet lamp lighting time reset key 103 that can reset the lighting time accumulated in the UVC ultraviolet lamp lighting time accumulation unit 42 each time is further installed.

In addition, the input/output unit of the control unit 60 includes a filter usage time accumulation unit 21 for automatically storing the elapsed time after replacement of the filter 20 using a timer provided in the control unit 60; As a result of the determination by the control unit 60, it is determined that the current filter usage time accumulated in the filter usage time accumulation unit 21 exceeds the maximum usage time input by itself, and when a predetermined output signal is generated, it is lighted. A filter replacement time notification unit 22 that notifies or displays with text or sound is further installed, but in the key input unit 100, whenever the filter 20 is replaced, the accumulated filter usage time accumulation unit 21 It is characterized in that a filter use time reset key 104 that can reset the filter use time is further installed.

In addition, a wired or wireless communication module 120 is further installed in the input and output units of the control unit 60, and as a result of the determination in the control unit 60, it is time to replace the UVC UV lamp 40 currently in use, or It is characterized in that the current operating state information, including when the currently used filter 20 has been replaced, can be automatically transmitted to the remote manager computer or terminal 130 through the wired or wireless communication module 120. do.

At this time, as the filter 20, it is installed only as a HEPA filter, or a primary pre-filter that removes large particles of dust contained in the air, and removes harmful microorganisms and radioactive dust that have passed through the primary pre-filter. It is characterized in that it consists of a secondary HEPA filter and a tertiary photocatalytic zeolite filter that removes viruses and bacteria that have passed through the secondary HEPA filter.

In addition, a temperature detection sensor 140 and a humidity detection sensor 150 are further installed inside or outside the case 10 to respectively detect and transmit the temperature and humidity of the indoor air to the control unit, and the display unit 110 It is characterized in that it is further provided with a function of displaying the current indoor temperature and humidity under the control of the controller (60).

In addition, when the indoor air forcibly introduced by the blower 30 passes through the periphery of the UVC ultraviolet lamp 40 being turned on in the periphery of the UVC ultraviolet lamp 40 in the case 10, the air flow Air passage time delay means for maximally delaying the contact time between the air passing through the inside of the case 10 and the UVC ultraviolet rays irradiated from the UVC ultraviolet lamp 40 by allowing it to flow in this wave shape and partly diffract it (160) is further provided.

At this time, the air passage time delay means 160 is formed of a plurality of air flow conversion plates 161 inclined at a predetermined angle in response to the direction of air flow on the ceiling and bottom surfaces within the case 10 . , The air flow conversion plates 161 are cross-molded with a predetermined distance from each other between the ceiling surface and the bottom surface in the case (10).

In addition, an automatic and manual mode selection key 105 is further installed in the key input unit 100 so that when automatic mode is selected, the UVC ultraviolet lamp 40 is turned on and off and the blower 30 is turned off by the control program pre-entered within itself. ) is automatically controlled, and when the manual mode is selected, the operation is controlled only by the key input unit 100 .

Here, unexplained reference numeral 170 denotes analog detection and detection signals output from the human body detection sensor 50, the thermal imaging camera 80, the CO₂ detection sensor 90, the temperature detection sensor 140, and the humidity detection sensor 150, respectively. is an A/D conversion unit that converts a digital signal that can be recognized by a microcomputer in the control unit 60 .

The effect of the ceiling buried indoor air sterilization system of the present invention having the above configuration will be described as follows.

First, the ceiling buried type indoor air sterilization system of the present invention is largely as shown in FIGS. 1 to 3 , a case 10 and a filter 20 , at least one blower 30 , and at least one UVC ultraviolet lamp 40 . , a human body detection sensor 50, a blower driving unit 31, a UVC ultraviolet lamp driving unit 41, and a control unit 60 are provided, and a person enters the room by the human body detection sensor 50 in a state embedded in the ceiling surface of the room. When an incoming is detected, it is included in the indoor air by forcibly circulating the indoor air from the moment it is detected until it leaves the room and irradiating UVC ultraviolet rays with a predetermined wavelength to sterilize and sterilize various bacteria and viruses contained in the indoor air. The main technology component is to prevent the infection of unspecified people due to various infectious bacteria and viruses, and at the same time, to prevent the secondary transmission of other people by pre-infected people in advance.

At this time, the case 10 corresponds to the main body of the system of the present invention, and in order to prevent damage to the human body due to UVC ultraviolet leakage, as well as curing and shortening of the product itself, in advance, a metal plate with stainless steel or the like is used. It has a shape molded into a hollow rectangular tube structure.

In addition, the air inlet 11 and the air outlet 12 are formed on both sides of the bottom so that the indoor air can be smoothly introduced and the clean air sterilized by UVC ultraviolet rays from the inside can be smoothly discharged back into the room. , is installed detachably embedded in the ceiling of the room in a state in which other components constituting the system of the present invention are mounted.

In addition, the filter 20 has a form replaceably installed on the upper part of the air inlet 11 inside the case 10 , and the indoor air can be introduced into the case 10 in response to the operation of the blower 30 . It performs a function of filtering various bacteria and viruses including fine particle dust contained in indoor air.

At this time, only a HEPA filter may be installed as the filter 20, but in this case, there is a limitation in its function. A HEPA filter that removes microorganisms and radioactive dust may be installed secondary, and further, a tertiary photocatalytic zeolite filter that removes viruses and bacteria that have passed through the primary and secondary filters is further installed on the back side of the secondary HEPA filter. You can also provide it.

In addition, the blower 30 has at least one (ie, one or multiple) installed on the upper portion of the filter 20, and generates a driving signal in response to an output signal of the control unit 60 to be described later. It is operated by the driving unit 31 and forcibly sucks indoor air through the air inlet 11 of the case 10 and then blows it toward the UVC UV lamp 40 and the air outlet 12 to circulate the indoor air. performs the function of giving.

At this time, the blower 30 has a shape in which the blades are exposed to the outside, and a plurality of blowing fans each having on/off control are installed or have a shape in which the blades are not exposed to the outside and the speed of the motor is proportional. Only one can be installed with a blower fan that can be controlled via a control scheme.

In addition, the UVC ultraviolet lamp 40 has at least one (that is, one or more) installed in the longitudinal direction in the space formed between the outlet of the blower 30 and the air outlet 12 in the case 10 . UVC ultraviolet rays having a predetermined wavelength (for example, 100 to 280 nm) are irradiated to air that has a shape and is turned off in response to an output signal of the control unit 60 to be described later, and is forcibly circulated by the blower 30 . It performs the function of removing various bacteria and viruses contained in the air.

At this time, the types of UV rays are divided into UVA (long wave), UVB (medium wave), and UVC (short wave) depending on the wavelength. In fact, it is known that the sterilizing power is strongest when irradiating a wavelength of about 254 nm.

In addition, the human body sensor 50 is installed to be exposed to the outside of the case 10 , and performs a function of detecting whether there is a person in the room as an electrical signal and transmitting it to the control unit 60 .

At this time, the human body detection sensor 50 detects far-infrared rays generated from the human body, but does not detect the temperature itself, but detects a temperature change. occurs

In addition, the control unit 60 is provided with a microcomputer (not shown), a timer, a storage device, etc., and a predetermined control processor. When input, the blower 30 is driven through the blower driving unit 31 and the UVC UV lamp 40 is turned on through the UVC UV lamp driving unit 41 at the same time. If the human body detection signal is not input, the blower ( 30) and the UVC ultraviolet lamp 40, respectively, to stop and turn off the overall control function of the system of the present invention.

At this time, although the process executed by the control unit 60 has been described as being executed by a software routine, at least some of the processes of the present invention may be performed by hardware. As such, the processes may be implemented in software executed on a computer system, implemented in hardware such as an integrated circuit, or implemented by a combination of software and hardware.

On the other hand, in the present invention, a lighting lamp receiving groove 13 is further formed in the space between the air inlet 11 and the air outlet 12 of the case 10, and the lighting lamp 70 is formed in the lighting lamp receiving groove 13. By detachably installing the ceiling-mounted indoor air sterilization system to which the present invention is applied, it has a form in which the lighting lamp is integrally installed.

Therefore, since the present invention itself is embedded in the ceiling in the form of a general indoor lighting lamp and performs the function of an indoor lighting lamp, indoor air sterilization can be efficiently performed using UVC ultraviolet rays while not affecting indoor lighting. In addition, it is possible to prevent external leakage of UVC ultraviolet rays, so it is possible to completely block damage caused by UVC ultraviolet rays. It can prevent damage to the interior and maintain the beauty of the indoor environment.

In addition, in the present invention, infrared rays are emitted to the subject inside or outside the case 10 to obtain different color images according to the temperature of infrared rays emitted from the subject, and the data (ie, face photos, time and body temperature information, etc.) ), a thermal imaging camera 80 that can be transferred to the control unit 60 and stored in the image and body temperature storage unit 81 in real time was further installed.

In addition, in the present invention, the control unit 60 drives the blower 30 in response to the human body detection signal of the human body detection sensor 50 that is normally generated when people enter the room, and at the same time drives the UVC ultraviolet lamp. While turning on (40), the image and body temperature data detected through the thermal imaging camera 80 are stored in the image and body temperature storage unit 81 in real time, as well as any one or more people in the room. When a person exhibits more than a predetermined body temperature, the number of blowers 30 is automatically changed through the blower driving unit 31 in response to the number of people or in response to the number of people entering the space, or the blower 30 ) was automatically changed through proportional control to automatically change the circulation amount of indoor air according to the number of persons with abnormal body temperature or the number of persons entering the room.

For example, when a plurality (eg, four) of the blower 30 having a blower fan is installed, the control unit 60 receives the output signal of the thermal imaging camera 80 and determines the result, If it is determined that only 1 to 3 uninfected people have entered, the control unit 60 operates the two blowers 30, and if about one of them has a body temperature above normal body temperature, or if 4 or 5 people enter the room operates the three blowers 30, and operates all four blowers 30 when two or more people have a normal body temperature or more or 6 or more people enter the room.

In addition, for example, when a single blower 30 having a follower fan and capable of controlling the rotational speed is installed, the control unit 60 receives the output signal of the thermal imaging camera 80 and determines the result, When only 1 to 3 uninfected people enter, the control unit 60 drives the blower 30 to have a rotation speed of 60 to 70% of the maximum rotation speed, and if about one of them has a body temperature above normal body temperature Alternatively, when 4 or 5 people enter the room, the blower 30 is operated with a rotation speed of 71 to 90% of the maximum speed. (30) is operated to have a rotation speed of 90 to 100%.

In addition, in the present invention, instead of the thermal imaging camera 80 , infrared rays of a frequency absorbed by carbon dioxide are emitted to the inside or outside of the case 10 , and the amount of infrared rays detected without being absorbed by carbon dioxide molecules is measured to obtain the control unit 60 . ), a CO₂ detection sensor 90 that transmits to it was further installed.

In addition, while the control unit 60 drives the blower 30 and turns on the UVC ultraviolet lamp 40 at the same time as people normally enter the room, it is detected through the CO₂ detection sensor 90 The number of people entering the room is determined through the amount of carbon dioxide, and when the detected amount of carbon dioxide is greater than or equal to the standard number of people, the number of drives of the blower 30 is changed through the blower driving unit 31 in response to the added number of people, or a blower ( 30) was automatically changed through proportional control to automatically change the circulation amount of indoor air according to the number of people with abnormal body temperature or the number of people entering the room.

For example, when a plurality of blowers 30 having a blower fan are installed (for example, four), the control unit 60 receives the output signal of the CO₂ detection sensor 90 and determines the result, When it is determined that only 1 to 3 people have entered, the control unit 60 operates the two blowers 30 , and when 4 to 5 people enter the room, the three blowers 30 are operated, and more than 6 people When entering the room, all four blowers 30 are operated.

In addition, for example, if one blower 30 having a follower fan and capable of controlling the rotational speed is installed, the control unit 60 receives the output signal of the CO₂ detection sensor 90 and determines the result, When only 1 to 3 people enter, the control unit 60 drives the blower 30 to have a rotation speed of 60 to 70% of the maximum rotation speed, and when 4 to 5 people enter the room, the blower 30 is operated. It operates to have a rotation speed of 71 to 90% compared to the maximum speed, and when 6 or more people enter the room, the blower 30 is operated to have a rotation speed of 90 to 100%.

Of course, the number of people, including the number of installations, operation numbers, and operation rotations, of the blower 30 exemplified above is variable depending on the space area of the room where the system of the present invention is installed and the number of installations in the same space. The example is only one example for explaining the operating state of the present invention.

As described above, in the present invention, the number of people present in the room and the presence or absence of infection are determined through the thermal imaging camera 80 or the CO₂ detection sensor 90, and the circulation speed or amount of indoor air is determined accordingly. By automatic control, the sterilization efficiency of indoor air can be increased, and various infectious bacteria can be sterilized and sterilized more efficiently.

In addition, it is possible to prevent infection of unspecified people due to various infectious bacteria and viruses contained in indoor air as well as secondary transmission by pre-infected persons. By providing a room, it is possible to respond to situational variables of infectious bacteria such as treatment, surgery, and hospitalization in the hospital. can be prevented

On the other hand, the description so far has determined the number of people present in the room and the presence or absence of an infected person through the thermal imaging camera 80 or the CO₂ detection sensor 90, and the number of drives of the blower 30 in response thereto B. The description was focused on the method of automatically adjusting the circulation speed or amount of indoor air by adjusting the rotation speed, but it is not limited to this, and the number and rotation speed of the blowers are the same to keep the circulation amount of indoor air constant. , a method of determining the number of people present in the room and the presence or absence of an infected person through the thermal imaging camera 80 or the CO₂ detection sensor 90, and adjusting the number of lighting of the UVC UV lamps 40 in response It is also possible to control the sterilization power through

In addition, in the present invention, the key input unit 100 that can input various key signals including specific data to the outside of the case 10 to the control unit 60, as well as a blower ( 30) and the UVC ultraviolet lamp 40, by further installing the display unit 110 that displays various status information including the operating status, so that it is possible to easily take measures necessary for operating the system from the outside of the case 10, as well as It is possible to accurately grasp the operating state of the system and take a desired action when necessary (shown in FIG. 1 of the state in which the key input unit 100 and the display unit 110 are installed outside the case 10 is omitted. ).

At this time, it is more preferable in terms of manufacturing cost, appearance, and operation to form the display unit 110 as a touch screen so that the key input unit 100 can be integrally mounted.

In addition, the key input unit 100 may be manufactured by a wired or remote control 101, for example, in the case of manufacturing the wireless remote control 101, the infrared key signal of the remote control 101 to the input unit of the control unit 60 It is enough to further install an IR receiver 102 that can receive the .

In addition, in the present invention, a UVC ultraviolet lamp lighting time accumulation unit 42 and a UVC ultraviolet lamp replacement time notification unit 43 are further installed in the input and output units of the control unit 60, and the UVC ultraviolet lamp lighting time accumulation unit Each time the UVC ultraviolet lamp 40 is turned on by the controller 60 by the controller 42, the accumulated time can be continuously counted and automatically stored using the timer provided in the controller 60, of course, the controller At 60, the cumulative lighting time is continuously received from the UVC UV lamp lighting time accumulation unit 42 in normal cases, and if the cumulative lighting of the current UVC UV lamp 40 accumulated in the UVC UV lamp lighting time accumulation unit 42 is accumulated When the time exceeds the maximum service life time (for example, 10,000 hours) that is input by itself, a driving signal is output to the UVC UV lamp replacement time notification unit 43 and the current through light, text, or sound, etc. The UVC UV lamp used until the end of its life can be notified or displayed.

In addition, a UVC UV lamp lighting time reset key 103 is further installed in the key input unit 100, so that whenever the UVC UV lamp 40 is replaced, a lamp replacer can reset the UVC UV lamp lighting time reset key ( 103), it is possible to reset the lighting time accumulated in the UVC UV lamp lighting time accumulation unit 42, so that the replacement time for the newly replaced UVC UV lamp 40 can be continuously managed.

In addition, in the present invention, a filter usage time accumulation unit 21 and a filter replacement time notification unit 22 are further installed in the input and output units of the control unit 60, and the filter usage time accumulation unit 21 causes the filter The elapsed time after the replacement of (20) can be continuously counted and automatically stored using a timer provided in the control unit 60, as well as the control unit 60 normally collects the current filter from the filter usage time accumulation unit 21. If the accumulated use time of the U filter is continuously inputted, the accumulated use time of the current filter 20 accumulated in the U filter use time accumulation unit 21 is the maximum use time (for example, 10 to 20 days) ; this may change depending on the degree of pollution of the indoor environment), a driving signal is output to the filter replacement time notification unit 22, and the filter used so far has reached the end of its service life through light, text, or sound. You will be able to notify or indicate that you did.

In addition, the filter usage time accumulation unit ( 21), the accumulated filter usage time can be reset, so the replacement time for a newly replaced filter can be continuously managed.

In addition, in the present invention, a wired or wireless communication module 120 is further installed in the input and output units of the control unit 60 , and as a result of the determination of the control unit 60 by itself, the UVC UV lamp 40 currently in use Automatically transmits the current operating state information to the remote manager computer or terminal 130 through the wired or wireless communication module 120, including when it is time to replace or the filter 20 currently in use has been replaced. made to be delivered.

Therefore, the UVC ultraviolet lamp 40 and the filter 20 provided in the indoor sterilization system to which the present invention is applied can be replaced at an accurate time corresponding to their lifespan, so that the indoor air sterilization efficiency using UVC ultraviolet rays can be significantly increased. In addition, it is possible to significantly improve the management efficiency of the indoor sterilization system of the present invention.

In addition, in the present invention, a temperature detection sensor 140 and a humidity detection sensor 150 are further installed inside or outside the case 10 to respectively detect and transmit the temperature and humidity of the indoor air to the control unit, and the display unit In the present invention, 110 is further provided with a function of displaying the current indoor temperature and humidity under the control of the controller 60 so that the administrator can accurately recognize the indoor temperature and humidity displayed on the display unit 110 . It can be used as control data according to the operation of the system.

In addition, by further providing an air passage time delay unit 160 around the UVC UV lamp 40 in the case 10 , the UVC UV lamp forcibly introduced by the blower 30 is turned on. When passing through the periphery of (40), the air passing through the inside of the case (10) because the flow of air flows in a wave shape as shown in FIG. The contact time between the UVC and UVC UV rays irradiated from the UVC UV lamp 40 can be delayed as much as possible, that is, it is possible to significantly increase the contact time.

At this time, the air passage time delay means 160 is formed of a plurality of air flow conversion plates 161 inclined at a predetermined angle in response to the direction of air flow on the ceiling and bottom surfaces within the case 10 . , the air flow conversion plates 161 are cross-molded with a predetermined distance from each other between the ceiling surface and the bottom surface in the case 10, so that the indoor air forcibly introduced by the blower 30 is turned on. When passing through the periphery of the UV lamp 40, it collides with the air flow conversion plate 161 of the ceiling surface and is inclinedly bent toward the floor, then collides with the air flow conversion plate 161 of the floor again and is inclined toward the ceiling. In the end, the flow of air flows in a wavy shape and at the same time some of it is diffracted.

Therefore, since the contact time between the air passing through the inside of the case 10 and the UVC ultraviolet rays irradiated from the UVC ultraviolet lamp 40 can be delayed as much as possible, the sterilization efficiency of the indoor air can be increased by that amount, so that various As it can sterilize and sterilize infectious bacteria, it is possible to prevent infection of unspecified people due to various infectious bacteria and viruses contained in indoor air as well as secondary transmission by pre-infected persons.

In addition, in the present invention, by further installing an automatic and manual mode selection key 105 in the key input unit 100, when the system of the present invention is operating normally by the control program, the automatic mode is selected and pre-entered control By a program, the turning off of the UVC ultraviolet lamp 40 and the operation of the blower 30 can be automatically controlled, and the system of the present invention does not operate normally due to a failure of a specific element, or regardless of the presence or absence of people When you want to sterilize indoor air, you can manually control the operation of the blower 30 and the turning off of the UVC ultraviolet lamp 40 through the key input unit 100 by selecting the manual mode. .

In the detailed description of the present invention described above, although it has been described with reference to preferred embodiments of the present invention, those skilled in the art or those having ordinary knowledge in the art will have the spirit of the present invention described in the claims to be described later. And it will be understood that various modifications and variations of the present invention can be made without departing from the technical scope.

10: case 11: air inlet
12: air outlet 13: lighting light storage groove
20: filter
21: filter usage time accumulation unit 22: filter replacement time notification unit
30: blower 31: blower driving unit
40: UVC ultraviolet lamp 41: UVC ultraviolet lamp driving unit
42: UVC UV lamp lighting time accumulation part
43: UVC UV lamp replacement time notification unit
50: human body detection sensor
60: control unit
70: lighting
80: thermal imaging camera 81: image and body temperature storage unit
90: CO₂ detection sensor
100: key input unit
101: remote control 102: IR receiver
103: UVC UV lamp lighting time reset key
104: Filter usage time reset key
105: automatic and manual mode selection key
110: display unit
120: wired or wireless communication module
130: administrator computer or terminal
140: temperature detection sensor
150: humidity detection sensor
160: air passage time delay means 161: air flow conversion plate
170: A/D conversion unit

Claims (13)

A case having a rectangular tube structure in which an air inlet and an air outlet are formed on both sides;
a filter installed in the upper part of the air inlet inside the case and filtering dust and various bacteria and viruses contained in the air flowing into the case;
At least one blower that operates in response to an output signal from the control unit while installed on the filter, forcibly sucks indoor air through the air inlet of the case, and blows it toward the UVC UV lamp and the air outlet to circulate air; ;
In the case where it is installed in the longitudinal direction in the space formed between the outlet of the blower and the air outlet, the light turns on and off in response to the output signal of the control unit, and UVC ultraviolet rays having a predetermined wavelength are emitted to the air forcibly circulated by the blower. at least one UVC UV lamp for irradiating to remove various bacteria and viruses in the air;
a human body detection sensor for detecting whether or not there is a person in the room with an electrical signal;
When a human body detection signal indicating that there is a person in the room is input from the human body detection sensor, the blower is driven through the blower driving unit and at the same time the UVC UV lamp is turned on through the UVC UV lamp driving unit. If the human body detection signal is not input, the blower and a control unit that stops and turns off the UVC UV lamp, respectively.
The method according to claim 1,
A lighting lamp receiving groove is further formed in the space between the air inlet and the air exhaust port of the case, and a lighting lamp is detachably installed in the lighting lamp receiving groove to form a lighting lamp integrally.
The method according to claim 1,
Further installing a thermal imaging camera that emits infrared rays to the subject inside or outside the case to obtain different color images according to the temperature of infrared rays emitted from the subject and transmits the data to the control unit,
Storing the image and body temperature data detected through the thermal imaging camera in real time in the image and body temperature storage unit while the control unit drives the blower and turns on the UVC ultraviolet lamp at the same time as people enter the room Of course, when any one or more people in the room exhibits a temperature higher than a predetermined body temperature, the number of blowers is automatically changed through the blower driving unit in response to the number of people or the number of people who entered the space. Ceiling buried indoor air sterilization system, characterized in that it automatically changes the circulation amount of indoor air according to the number of persons with abnormal body temperature or the number of persons entering the room by automatically changing the rotation speed of the blower through proportional control.
The method according to claim 1,
A CO₂ detection sensor is further installed inside or outside the case, which emits infrared rays of a frequency absorbed by carbon dioxide, measures the amount of infrared rays detected without being absorbed by carbon dioxide molecules, and transmits them to the control unit,
The control unit determines the number of people entering the room through the amount of carbon dioxide detected through the CO₂ detection sensor while driving the blower and turning on the UVC UV lamp at the same time as people normally enter the room, If the number of people is greater than the standard number of people, the number of blowers driven through the blower driving unit is changed in response to the added number of people, or the rotation speed of the blower is automatically changed through proportional control to automatically change the circulation amount of indoor air according to the number of people entering the room. Ceiling buried indoor air sterilization system, characterized in that.
5. The method of any one of claims 3 or 4,
The blower has a shape in which the blades are exposed to the outside and a plurality of blowing fans each having on/off control are installed, or have a shape in which the blades are not exposed to the outside and control the speed of the motor through a proportional control method A ceiling-mounted indoor air sterilization system, characterized in that it is equipped with a blower fan that can do it.
The method according to claim 1,
a key input unit capable of inputting a key signal to the control unit at the outside of the case;
A ceiling-mounted indoor air sterilization system, characterized in that it further installs; a display unit that displays various status information including the operating status of the blower and UVC UV lamp in response to the output signal of the control unit.
7. The method of claim 6,
The key input unit is formed as a remote control, and an IR receiver that receives the key signal of the remote control through infrared rays is further installed in the input unit of the control unit.
7. The method of claim 6,
In the input and output units of the control unit,
a UVC UV lamp lighting time accumulator for continuously counting and automatically storing the accumulated time using a timer provided in the control unit whenever the UVC UV lamp is turned on;
As a result of the determination by the control unit, it is determined that the cumulative lighting time of the current UVC UV lamp accumulated in the UVC UV lamp lighting time accumulation unit exceeds the maximum service life time input by itself, and when a predetermined output signal is generated, it is lighted. A UVC UV lamp replacement time notification unit that notifies or displays with text or sound;
In the key input unit, whenever the UVC UV lamp is replaced, a UVC UV lamp lighting time reset key capable of resetting the accumulated lighting time in the UVC UV lamp lighting time accumulation part is further installed. sterilization system.
7. The method of claim 6,
In the input and output units of the control unit,
a filter usage time accumulator which continuously counts and automatically stores the elapsed time after replacement of the filter using a timer provided in the control unit;
As a result of the determination by the control unit, it is determined that the current filter usage time accumulated in the filter usage time accumulation unit exceeds the maximum usage time inputted by itself, and when a predetermined output signal is generated, it is notified by light, text, or sound. or a filter replacement time notification unit that displays
A filter usage time reset key capable of resetting the accumulated filter usage time in the filter usage time accumulation unit each time the filter is replaced in the key input unit.
10. The method according to any one of claims 8 or 9,
A wired or wireless communication module is further installed in the input and output units of the control unit,
As a result of the determination of the control unit, the current operating state information, including when it is time to replace the UVC UV lamp currently in use or when the filter currently in use has been replaced, is transmitted to the remote manager computer or Ceiling buried indoor air sterilization system, characterized in that it is automatically delivered to the terminal.
7. The method of claim 6,
A temperature detection sensor and a humidity detection sensor for detecting the temperature and humidity of the indoor air, respectively, and transmitting it to the control unit are installed inside or outside the case,
The ceiling-embedded indoor air sterilization system, characterized in that the display unit further includes a function of displaying the current indoor temperature and humidity under the control of the controller.
The method according to claim 1,
When indoor air forcibly introduced by the blower passes through the periphery of the UVC UV lamp being turned on around the UVC UV lamp in the case, the air flow is made to flow in a wavy shape and at the same time a part is diffracted. Ceiling buried indoor air sterilization system, characterized in that it further comprises an air passage time delay means for maximally delaying the contact time between the air passing through the inside of the case and the UVC ultraviolet rays irradiated from the UVC ultraviolet lamp.
13. The method of claim 12,
The air passage time delay means,
It is formed of a plurality of air flow conversion plates inclined at a predetermined angle in correspondence to the direction of air flow on the ceiling surface and the bottom surface of the case, wherein the air flow conversion plates are spaced apart from each other between the ceiling surface and the bottom surface in the case. Ceiling buried indoor air sterilization system, characterized in that it is cross-molded with

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