Indoor air sterilization and purification device using UV-C LEDs

Abstract

The present invention relates to an indoor air sterilization and purification device which can perform not only a space sterilization function for sterilizing and purifying microbial particles present in air in an indoor space, but also a surface sterilization function for sterilizing and disinfecting the surface of an object in the indoor space, therefore, the sterilization performance of the indoor space is improved. The device can also irradiate objects with sterilization light or spray a disinfectant nearby without encountering any obstacle during movement, even if the shapes and arrangement states of the objects in the indoor space are complex, thereby improving the sterilization function.

Description

[0001] related application [0002] This application claims priority to Korean Patent Application No. 10-2020-0137297 filed on October 22, 2020 at the Korean Intellectual Property Office, the entire disclosure of which is hereby incorporated by reference. technical field [0003] The present invention relates to an indoor air sterilization and purification device using UV-C LEDs. Background technique [0004] Since 2000, severe infectious diseases such as Severe Acute Respiratory Syndrome (SARS), Influenza A subtype (H1N1), Middle East Respiratory Syndrome (MERS) and most recently novel coronavirus have occurred and spread worldwide 19 (COVID-19), resulting in a large number of infections and deaths, which has thus become a regular social problem. As the frequency of occurrence of each infectious disease becomes shorter and shorter, the prevention of infectious diseases is getting more and more attention. As an implementation goal, relevant laws (Law on the Prevention and ...

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Problems solved by technology

[0008] In the case of such a simple air sterilizing purifier, there are problems that, in addition to the function of purifying the air by removing fine dust, the sterilization efficiency is not too high, and the microorganisms present in the air are eliminated by the membrane filter. Filtration (the filter filters out dust) so that infectious agents are present without loss of infectivity and are not specially treated

In addition, there is a problem that a typical indoor air sterilization and purification device exhibits a relatively high sterilization function efficiency in an area near a germicidal lamp that irradiates sterilization light, but as the distance from the germicidal lamp increases, the sterilization function decreases. The efficiency of the bacterium decreases rapidly, so the overall sterilization effect on the indoor space is insignificant

Chinese utility model CN ​​209529745 U discloses a technology for a sterilization device with autonomous travel function, but there are the following problems: due to the short life of the fluorescent lamp, it needs to be replaced frequently, and the mercury generated during the replacement and disposal of the fluorescent lamp It will cause environmental pollution, and air pollution caused by ozone generated by ultraviolet rays cannot be solved; there is also a disadvantage: due to the lack of technology to monitor the state of microbial sterilization, it is impossible to determine whether sufficient sterilization has been achieved

[0010] In addition, Korean Patent Registration No. 10-2093161 discloses a technology for an intelligent automatic disinfection device with an autonomous travel function, which determines whether an area is contaminated by the first spectrum, and sterilizes the pollutants by irradiating ultraviolet rays. Sterilize the area; then, determine whether additional sterilization is required by acquiring a second spectrum of reflected light, but due to the structure of the light source, its disadvantage is that the sterilization range is limited to the side of the object, making it difficult to sterilize the object The upper and lower surfaces are sterilized, so it is not possible to determine if contamination is present in the air, as this is a technique that uses reflected light

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