KR102831360B1 - Dust duster that supplies sterilized warm air - Google Patents

Abstract

The present invention relates to a duster capable of supplying sterilized warm air, which can sterilize the air inside the housing in real time through UV-C and UV-A ultraviolet rays provided in a sterilizing unit, purify and deodorize various odors and malodors including fine dust and microorganisms floating in the air through an ion generating unit, and supply warm air at a temperature desired by the user through an air heater, thereby providing safer and cleaner warm air.
The present invention includes a housing (110), an ion generator (145), an air supply unit (150), a sterilizing unit (140), at least one air heater (200), at least one air distributor (120) or air gun (130), and a control panel (180).

Description

Dust duster that supplies sterilized warm air

The present invention relates to a duster capable of supplying sterilized warm air, and more specifically, to a duster capable of supplying sterilized warm air, which can sterilize the air inside the housing in real time through UV-C and UV-A ultraviolet rays provided in a sterilizing unit, can purify and deodorize various odors and malodors including fine dust and microorganisms floating in the air through an ion generating unit, and can supply warm air at a temperature desired by the user through an air heater, thereby providing safer and cleaner warm air.

In general, dusters are installed in construction or civil engineering sites, factories, car washes, parks, schools, playgrounds, sports classrooms, outdoor historic sites, hiking trails, amusement parks, beaches, etc. to remove dirt and dust (hereinafter collectively referred to as “dirt”) that adheres to people’s skin or clothing.

These dusters usually have a compressor installed inside the device to provide compressed air, and the compressed air created by the compressor is sprayed through an air gun installed outside the device to remove dirt and dust adsorbed on skin or clothing with the discharge pressure of the compressed air.

As the above-mentioned dust remover, the technology of the Republic of Korea Publication No. 10-2017-0000720 is known. This known technology has a function of playing music when the compressed air inside the air gun is discharged to the outside, thereby reducing the discomfort felt from noise.

However, existing dusters including the above-mentioned conventional technology have a simple structure that sprays compressed air through an air gun, and thus only have the function of providing compressed air to the user, and do not provide any other functions that can improve user convenience.

Furthermore, dusters are mainly used in places where a large number of people gather, and since these places are relatively vulnerable to hygiene, it is necessary to consider public hygiene when using dusters.

In addition, in winter, when removing dirt and dust with cold air, users feel even colder, so there is a problem that they are reluctant to use the dirt and dust remover, and this needs to be resolved.

Domestic Patent Publication No. 10-2022-0128085 (September 20, 2022) Domestic Patent Publication No. 10-2280206 (July 21, 2021) Domestic Patent Publication No. 10-2018-0085274 (July 26, 2018) Domestic Patent Publication No. 10-2387962 (April 19, 2022)

The present invention has been devised to solve the above-described various problems of the related art, and comprises a sterilizing unit equipped with UV-C and UV-A light source modules installed inside a housing, an ion generator for purifying and deodorizing various odors and malodors is installed at the outlet of an air supply unit whose inlet is connected to the outlet of the sterilizing unit, and an air heater installed between the ion generator and air distributors or air guns, so that various bacteria (e.g., Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, and pneumonia, etc.) and respiratory viruses (Calicivirus (FCV; Feline Ccalici Virus), Influenza A Virus (IAV-H3N), etc.) contained in the air inside the housing are sterilized and purified through UV-C and UV-A ultraviolet rays provided in the sterilizing unit, and various odors and malodors, including fine dust and microorganisms floating in the air, can be purified and deodorized through the ion generator installed at the outlet of the air supply unit that compresses and provides the sterilized and purified air, and finally, the air is heated to a temperature desired by the user through the air heater and provided. The purpose is to provide a duster capable of supplying sterilized warm air that can remove dust using warm air in a more hygienic usage environment.

More specifically, the present invention sterilizes various types of bacteria contained in the air inside a housing in real time through a sterilization unit equipped with a UV-C light source module before supplying air from an air supply unit including either a compressor or a ring blower motor to an air distributor or an air gun, and then purifies and deodorizes various types of odors or unpleasant odors, including fine dust and microorganisms floating in the air, through an ion generator coupled to the outlet of the air supply unit that compresses and provides the air sterilized through the sterilization unit, and then heats the air to a temperature desired by the user through an air heater capable of controlling the temperature, and finally provides warm air through an air distributor or an air gun, so that users can remove dirt and dust using safer and cleaner air, and provides environmentally friendly air through sterilization using UV-C and UV-A light source modules without using chemicals, and can be easily installed between an existing compressor or ring blower motor and an air distributor or an air gun, so that the range of applications is wide, and it can contribute to the maintenance of the air compression system and improvement of hygiene, and users can remove dirt and dust by using a dirt duster without burden even in winter, and in particular, it can be applied in various industrial environments. The purpose is to provide a duster capable of supplying sterilized warm air.

Other detailed purposes of the present invention will be clearly understood and determined by those skilled in the art or researchers through the specific contents described below.

In order to achieve the above object, an embodiment of the present invention is applied to a duster capable of supplying sterilized warm air, comprising: a housing forming an exterior; an ion generator installed inside the housing, which purifies and deodorizes various odors or unpleasant odors, including fine dust and microorganisms floating in the air inside the housing; an air supply unit including either a compressor or a ring blower motor, which is installed inside the housing, and which sucks and compresses air inside the housing and supplies air to a user through at least one air distributor or air gun; a sterilizing unit connected to an outlet of the air supply unit, which irradiates UV-C and UV-A ultraviolet rays having a predetermined wavelength to the air provided from the air supply unit, thereby sterilizing various bacteria and respiratory viruses, including microorganisms and harmful particles contained in the air; at least one air heater having a configuration in which a heater is installed inside the body, and which heats the air sterilized by ultraviolet rays through the sterilizing unit to a temperature desired by the user in a state in which the heater is installed between the outlet of the sterilizing unit and the air distributor or air gun; At least one air distributor or air gun is installed on the outside of the housing and provides heated hot air to a user through the air heaters; and a control panel that performs overall control functions for the air supply unit, ion generator, sterilizer, and air heater in a state where it is installed on the outside of the housing.

In addition, the control panel includes a power supply unit that rectifies AC voltage to provide a driving voltage required by each unit; an inverter that generates a FET driving signal having a certain frequency through oscillation when a DC voltage is applied, a MOS FET that is turned on/off in response to the output voltage of the inverter, a high-voltage transformer (HVT) that boosts a low input voltage to a high output voltage, and a high-voltage supply unit that rectifies the high output voltage of the high-voltage transformer (HVT) and provides it to a corona discharger, and an ion generation control unit that controls the operation of the ion generation unit. An air supply control unit comprising a constant voltage rectifier for rectifying AC voltage into a constant DC voltage, a motor on/off control switch for controlling the operation of an AC motor equipped in an air compressor, a motor on/off control unit for outputting a driving signal to the AC motor drive unit when the motor on/off control switch is turned "on" and automatically cutting off the DC voltage output from the constant voltage rectifier and supplied to the AC motor drive unit when a predetermined time (t1) has elapsed, and an AC motor drive unit for controlling the supply of AC voltage supplied to the AC motor while being turned on/off in response to the output signal of the motor on/off control unit, and controlling the operation of the air supply unit; a sterilization control unit having an on/off timer and an LED driving MOS FET, and controlling the sterilization unit to turn on/off at predetermined time intervals; an air heater control unit having a temperature setting unit, a temperature detection sensor, and a heater supply voltage control unit, and automatically controlling the heating air heater of a heater installed in the air heater to a temperature set by a user; and a power circuit breaker that cuts off power when a malfunction occurs due to overcurrent or overload.

In addition, the sterilizing unit includes a combination of a plurality of UV-C LED light source modules that irradiate ultraviolet rays with a wavelength of 100 to 280 nm and at least one UV-A LED light source module that irradiates ultraviolet rays with a wavelength of 315 to 400 nm.

In addition, the at least one UV-A LED light source module has a form in which a plurality of UV-A LEDs irradiating ultraviolet rays with a wavelength of 315 to 400 nm are connected in series with each other in a horizontal direction in multiple rows from the upper and lower sides, and the plurality of UV-C LED light source modules have a form in which two UV-C LEDs irradiating ultraviolet rays with a wavelength of 100 to 280 nm are connected in series with each other in a horizontal direction, but the one UV-A LED light source module is characterized in that it has a form in which it is connected in parallel with each other.

In addition, one embodiment of the air heater is characterized in that a heating air passage rod having a diameter relatively smaller than the diameter of a body having a cylindrical or square cylinder shape is installed on the center line of the body, a coil-shaped heater is densely wound on the outer surface of the heating air passage rod, and an insulating member is installed on the outside of the body.

In addition, another embodiment of the air heater is characterized in that a plurality of plate-shaped heaters are installed at right angles to each other at a set distance inside a body having a cylindrical or rectangular shape, but the plate-shaped heaters are installed in a zigzag manner in the up-down direction or left-right direction or are installed at a set distance from each other at a set angle difference so that air passing through the inside of the body has the longest possible contact time with the plate-shaped heaters, a temperature detection sensor is installed on the air discharge port side so as to detect the temperature of the air finally discharged, and an insulating member is installed on the outside of the body.

As described above, according to the soil duster capable of supplying sterilized warm air of the present invention, an ion generator is installed inside the housing, a sterilization unit equipped with UV-C and UV-A light source modules is installed at the outlet of the air supply unit, and an air heater is installed between the outlet of the sterilization unit and the air distributor or air gun, so that various odors or bad smells, including fine dust and microorganisms floating in the air inside the housing, can be purified and deodorized through the ion generator, and various bacteria (e.g., Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, and Streptococcus pneumoniae, etc.) and respiratory viruses (Calicivirus (FCV; Feline Ccalici Virus), Influenza A Virus (IAV-H3N), etc.) contained in the air provided from the air discharge unit can be sterilized and purified through UV-C and UV-A ultraviolet rays provided in the sterilization unit, and finally, the air can be heated to a temperature desired by the user and provided through the air heater, so that it is possible to remove soil dust using warm air in a more hygienic usage environment.

In other words, the present invention purifies and deodorizes various odors and malodors, including fine dust and microorganisms floating in the air inside the housing, through an ion generator before supplying air from an air supply unit including either a compressor or a ring blower motor to an air distributor or an air gun, and then sterilizes various bacteria contained in the air provided from the air supply unit in real time through a sterilization unit equipped with UV-C and UV-A light source modules, and then heats the air to a temperature desired by the user through an air heater capable of controlling temperature, and finally provides warm air through an air distributor or an air gun, so that users can remove dirt and dust using safer and cleaner air, and in particular, it is possible to provide warm air that purifies and deodorizes various odors and malodors, including fine dust and microorganisms contained in the air inside the housing, through the ion generator, and provides environmentally friendly air through sterilization using UV-C and UV-A light source modules without using chemicals, and can remove dirt and dust without burden using warm warm air even in winter, so that user satisfaction can be significantly increased, and it is possible to remove dirt and dust without burden using warm warm air even in winter using existing compressors or ring blowers. It is a very useful invention as it can be simply installed between a motor and an air distributor or air gun, has a wide range of applications, can contribute to improving the maintenance and hygiene of air compression systems, and can be applied especially in various industrial environments.

Other effects of the present invention will be clearly understood and determined by those skilled in the art through the specific contents described below or during the process of implementing the present invention.

Figure 1 is a block diagram of a dirt duster according to one embodiment of the present invention.
FIGS. 2 and 3 are perspective views showing the appearance of a duster to which one embodiment of the present invention and another embodiment of the present invention are applied.
Figures 4 and 5 are a perspective view of the rear exterior of a footbath to which the dust remover of the present invention is applied and an enlarged view of a portion of the air heater.
Figures 6 (a) and (b) are examples of an air supply unit of the present invention.
Fig. 7 is an actual photograph of the air distributor of the present invention.
Figure 8 is a specific circuit diagram of the power supply unit, sterilization control unit, and ion generation control unit of the present invention.
Figure 9 is a photograph of an implementation state of the sterilization unit of the present invention.
Figure 10 is a specific circuit diagram of the air generation control unit of the present invention.
Figure 11 is a photograph of the air generation control unit of the present invention mounted on a printed circuit board.
Figures 12 (a) and (b) are cross-sectional views of an air heater in which an embodiment of the present invention is applied and photographs of the installation state of a coil-type heater.
Figures 13 (a) and (b) are a cross-sectional view and a plan view of an air heater to which another embodiment of the present invention is applied.
Figure 14 is a block diagram of an air heating control unit of the present invention.

The present invention can be modified in various ways and can take various forms, and 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 specific disclosed forms, but should be understood to include all modifications, equivalents, or substitutes included in the spirit and technical scope of the present invention.

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

The terminology used in this application is only used to describe specific embodiments and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, it should be understood that the terms "comprises" or "has" and the like are intended to specify the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

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

Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and will not be interpreted in an idealized or overly formal sense, unless expressly defined otherwise in this application.

Hereinafter, the operating state according to each configuration, including a preferred embodiment according to the present invention, will be described in detail with reference to the attached drawings.

FIG. 1 is a block diagram of a duster according to an embodiment of the present invention, FIGS. 2 and 3 are perspective views showing the exterior of a duster according to an embodiment of the present invention and another embodiment of the present invention, and FIGS. 4 and 5 are perspective views of the rear exterior of a footbath to which the duster according to the present invention is applied and an enlarged view of a portion of an air heater.

In addition, (a)(b) of FIG. 6 are exemplary diagrams of an air supply unit of the present invention, FIG. 7 is an actual photograph of an air distributor of the present invention, FIG. 8 is a specific circuit diagram of a power supply unit, a sterilization control unit, and an ion generation control unit of the present invention, FIG. 9 is a photograph of an implementation state of a sterilization unit of the present invention, FIG. 10 is a specific circuit diagram of an air generation control unit of the present invention, and FIG. 11 is a photograph of the air generation control unit of the present invention mounted on a printed circuit board.

In addition, (a)(b) of FIG. 12 are cross-sectional views of an air heater to which one embodiment of the present invention is applied and photographs of the installation state of a coil-type heater, (a)(b) of FIG. 13 are cross-sectional views and plan views of an air heater to which another embodiment of the present invention is applied, and FIG. 14 is a block diagram of an air heating control unit of the present invention.

According to this, a duster (100) capable of supplying sterilized warm air to which one embodiment of the present invention is applied largely includes a housing (110), an ion generator (145), an air supply unit (150), a sterilizing unit (140), at least one air heater (200), at least one air distributor (120) or air gun (130), and a control panel (180), as shown in FIG. 1.

First, the housing (110) corresponds to the exterior of a dirt and dust remover to which one embodiment of the present invention is applied, and may have a roughly rectangular body shape as shown in FIGS. 1 to 3.

At this time, the housing (110) may have a form in which a ventilation hole (or air intake hole) is formed on one side to draw external air into the interior.

Preferably, the housing (110) is formed in a hexahedral box shape, and if necessary, the housing (110) may be formed in a cylindrical shape, and as shown in FIG. 2, two air distributors (120) may be installed spaced apart from each other in a parallel manner, and may have an air gate shape that allows the user to conveniently remove dirt and dust on their skin or clothes while standing in the gate space (111) between each air distributor (120).

In addition, the duster (100) to which the present invention is applied is formed as a single product in which a plurality of air guns (130) and air distributors (120) are installed on the outside of the housing (110) as shown in FIGS. 1 to 3, so that it can be installed anywhere without being restricted by location and used conveniently by users, but is not limited thereto, and as shown in FIGS. 4 and 5, it can be installed at the exit of a golf course, entrance to a hiking trail, a park, a beach, an outdoor sports field, a walking path, etc., and installed inside a widely used foot wash place, and only the air guns (130) can be installed on the outside so that users can conveniently use it outdoors, etc.

In addition, the ion generator (145) decomposes air molecules and generates negative ions and ozone by promoting corona discharge between electrodes to which high voltage is applied, and performs the function of purifying and deodorizing various odors and bad smells, including fine dust and microorganisms floating in the air existing inside the housing (110), using negative ions when installed inside the housing (110).

As the ion generating unit (145) above, a negative ion generator that discharges negative ions through corona discharge is adopted. When the negative ions are generated in the air, in addition to the purification function of fine dust and microorganisms, people can feel refreshed and relaxed in nature, and their own electrons are activated oxygen.

Therefore, it is known to actively promote health maintenance activities by suppressing excessive generation of lethal active oxygen in cells and oxidation of cells, and to have the effect of converting blood, making acidic blood alkaline, activating metabolism, and activating the functions of each cell to promote recovery from fatigue.

In addition, it is known to improve the function of the autonomic nervous system, thus improving the function of the endocrine glands, to have a positive effect on the central and peripheral nervous systems, to enhance the formative function, to have a positive effect on body fluids, cells, and the nervous system, to improve the function of all organs and tissues, to regulate the balance of the autonomic nervous system and endocrine functions, and to have an effect of maintaining the acidity of fish and flowers due to its antioxidant, deodorizing, and sterilizing functions.

In addition, the air supply unit (150) may have a configuration including either a compressor such as in (a) of FIG. 6 or a ring blower motor (RBM) such as in (b) of FIG. 6.

At this time, the compressor (air compressor/air pressure compressor; COM) performs the function of compressing air above a certain pressure, storing it in a high-pressure tank, and then providing air to an air distributor (120) or air gun (130) described later, and the ring blower motor (RBM) performs the function of compressing air or generating high-pressure air through high-speed rotation and providing it to an air distributor (120) or air gun (130).

The above ring blower motor (RBM) operates on the principle that the impeller located inside the casing rotates at high speed to suck in outside air, and the impeller grooves dug radially along the circumference of the impeller rotate inside the casing to generate friction in the fluid, which in turn increases the head and discharges it to the outside through the resulting pressure change.

The air supply unit (150) as described above, when installed inside the housing (110), performs the function of sucking in air inside the housing (110) purified and deodorized by the ion generator (145) through the compressor or ring blower motor (RBM), compressing the air, and then supplying the air to at least one air distributor (120) or air gun (130) through the sterilizing unit (140) and at least one air heater (200) described below.

In addition, the sterilizing unit (140) is installed between the outlet of the air supply unit (150) and the air heater (200) described later inside the housing (110) of the dust remover of the present invention, and performs the function of purifying the air by sterilizing various bacteria and viruses contained in the air inside the housing (110) provided by the air supply unit (150).

The sterilizing unit (140) according to one embodiment of the present invention is intended to efficiently sterilize various types of bacteria, such as Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, and Streptococcus pneumoniae, which may exist in the air provided by the air supply unit (150), as well as various types of respiratory viruses, such as Feline Ccalici Virus (FCV) and Influenza A Virus (IAV-H3N).

To this end, one embodiment of the present invention adopts a form formed by combining a UV-C LED light source module (140b) that irradiates ultraviolet rays with a wavelength of 100 to 280 nm and a UV-A LED light source module (140a) that irradiates ultraviolet rays with a wavelength of 315 to 400 nm.

FIG. 8 shows a specific circuit diagram of the power supply unit (180a), the sterilization control unit (182), and the ion generation control unit (184) including the sterilization unit (140) of the present invention, and FIG. 9 shows an actual photograph of the sterilization unit (140) of the present invention.

In this regard, the sterilizing unit (140) has a plurality of UV-A LEDs irradiating ultraviolet rays with a wavelength of 315 to 400 nm, which are arranged horizontally in multiple rows from the top and bottom and connected in series to form one UV-A LED light source module (140a), and two UV-C LED light source modules (140b) irradiating ultraviolet rays with a wavelength of 100 to 280 nm, which are connected in series and parallel to each other, are arranged horizontally and connected in series to each other, but the two UV-C LED light source modules (140b) are connected in parallel to the one UV-A LED light source module (140a).

At this time, various odors and bad smells contained in the air can be quickly and effectively deodorized and purified through ultraviolet rays with a wavelength of 315 to 400 nm irradiated from the UV-A LED light source module (140a) included in the sterilization unit (140), and pathogenic factors of bacteria and respiratory viruses such as Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, and pneumococcus that are contained in the air and cause infections or harm to health can be effectively sterilized through ultraviolet rays with a wavelength of 100 to 280 nm irradiated from the UV-C LED light source module (140b).

Accordingly, the internal air of the housing (110) is purified and deodorized through the ion generating unit (145), compressed through the air supply unit (150), and then passes through the sterilizing unit (140) to sterilize pathogenic factors such as various viruses, bacteria, and molds, including microorganisms and harmful particles that may be contained in the air, thereby enabling the deodorized, sterilized, and purified air to be supplied to the user through the air distributor (120) and the air gun (130), thereby obtaining the advantage of improved hygiene.

As described above, the sterilizing unit (140) has a form configured by combining the UV-A LED light source module (140a) and the UV-C LED light source module (140b) that are irradiated with ultraviolet rays of a set wavelength, so it is desirable to prevent a state in which the light irradiated from these light source modules can be directly irradiated to the human body.

In other words, when an inspection port (not shown) or the like is opened from the outside of the housing (110), it is desirable to automatically sense the open state of the inspection port through a sterilization control unit (182) described below and control the sterilization unit (140) to stop its operation, thereby preventing the eyes or skin from being directly exposed to ultraviolet rays and causing injury.

In addition, the at least one air heater (200) has a configuration in which a heater (212) and a temperature detection sensor (213) are installed inside a body (211) having a cylindrical or square cylinder shape, as shown in FIGS. 12 to 14, and an air heater control unit (210) having a temperature setting unit (215) and a heater supply voltage control unit (216) is installed outside, and performs a function of heating air sterilized with ultraviolet rays through the sterilization unit (140) to a temperature set by a user when installed between the outlet of the sterilization unit (140) and an air distributor (120) or an air gun (130).

The air heater (200) of this type can be configured in various forms, and as an example, as shown in (a) and (b) of FIG. 12, a heating air passage rod (214) having a diameter relatively smaller than the diameter of the body (211) is installed to penetrate the center line of a body (211) having a cylindrical or square shape, a coil-shaped heater (212, 212a) is densely wound on the outer surface of the heating air passage rod (214), a temperature detection sensor (213) is installed on the outlet side of the body (211), and an insulating member (217) is installed on the outside of the body (211).

The air heater (200) having such a configuration compares the set temperature input by the user through the temperature setting unit (215) and the internal air temperature detected through the temperature detection sensor (213) in the air heater control unit (210) provided in the control panel (180), and controls the voltage supplied to the coil-type heater (212, 212a) through the heater supply voltage control unit (216) in response to the difference so that the coil-type heater (212, 212a) generates heat, thereby heating the heating air passage rod (214) by the heat generated from the coil-type heater (212, 212a), so that the air passing through the heating air passage rod (214) is automatically heated to a temperature close to the user's set temperature and then supplied to the air distributor (120) or air gun (130) connected to the outlet of the air heater (200).

At this time, the heat exchange volume of the air heater (200) and the heat generation amount of the heater can be determined through testing by taking into account the amount and speed of air passing through the heated air passage rod (214), etc. For example, the greater the passing amount and the faster the passing speed, the more the heat generation temperature generated from the heaters needs to be geometrically increased.

In addition, the heating air passage rod (214) having the coil-shaped heater (212, 212a) wound on the outer surface is not limited to being installed only one on the center line of the body (211) having a cylindrical or square shape as described above, and may be installed in multiple pieces penetrating within one body (211) as needed, but may be formed to have a form in which one inlet and the other outlet are each combined into one.

In this case, the coil-type heaters (212, 212a) densely wound on the outer surface of the above-mentioned heated air passage rods (214) can simultaneously control the heating temperature as a whole by controlling the supply voltage at the same time, or can individually control the heating temperature by controlling the voltage supplied to each separately.

In addition, as another embodiment of the air heater (200), as shown in (a) of FIG. 13, a plurality of plate-shaped heaters (212, 212b) are installed at a set distance from each other in a right-angled direction inside a body (211) having a cylindrical or square shape, but are installed in a zigzag manner in the up-down or left-right direction so that the air passing through the inside of the body (211) has the longest possible contact time with the plate-shaped heaters (212, 212b), or are installed so as to have a form in which the plate-shaped heaters (212, 212b) are spaced at a set distance from each other while having a continuously set angle difference, as shown in (b) of FIG. 13, and the temperature detection sensor (213) is installed on the air discharge port side so as to detect the temperature of the air finally discharged, and an insulating member (217) may be installed on the outside of the body (211).

The air heater (200) having such a configuration compares the set temperature input by the user through the temperature setting unit (215) and the internal air temperature detected through the temperature detection sensor (213) in the air heater control unit (210) provided in the control panel (180) as shown in FIG. 14, and controls the voltage supplied to the plate-shaped heaters (212, 212b) through the heater supply voltage control unit (216) in response to the difference, thereby causing the plate-shaped heaters (212, 212b) to generate heat at a set temperature, thereby causing the plate-shaped heaters (212, 212b) to operate for heating.

At this time, the air generated from the air supply unit (150) and passed through the ion generating unit (145) and the sterilizing unit (140) and then introduced into the housing (211) of the air heater (200) is gradually heated in the process of moving in a zigzag manner while colliding with the plate-shaped heaters (212, 212b) installed in a zigzag shape inside the housing (211) for the longest time possible and changing direction in a zigzag manner, and finally has the desired temperature, or is gradually heated in the process of moving in a diffraction manner while colliding with the plate-shaped heaters (212, 212b) so as to have a shape spaced apart from each other by a set angle difference, and finally is automatically heated to be close to the set temperature desired by the user and then supplied to the air distributor (120) or air gun (130) connected to the outlet of the air heater (200).

In the case of an air heater (200) of this type, the area or installation interval of each plate-shaped heater (212, 212b) is determined according to the volume of the housing (211) of the air heater (200) and the amount of heat generated by each plate-shaped heater (212, 212b), etc. For example, the larger the volume of the housing (211) and the greater the amount of air passing through it and the faster the passage speed, the larger the area of the plate-shaped heaters (212, 212b) can be determined and the installation interval can be determined narrower. In the opposite case, the area of the plate-shaped heaters (212, 212b) can be reduced or the installation interval can be widened.

In addition, the insulating member (217) installed on the outside of the housing (211) of the air heater (200) prevents heat generated from the air heater (200) from leaking to the outside through the housing (211) and performs the function of allowing most of the heat generated from the heater (212) inside the air heater (200) to be transferred to the air passing through the housing (211).

Meanwhile, the at least one air distributor (120) may include an extended pipe (121) capable of flowing air supplied after being heated by the air heater (200), as shown in FIG. 7, and a plurality of nozzles (122) formed at equal intervals in the pipe (121) to spray air to the outside of the pipe (121).

And, the air distributor (120) is attached to the housing (110) so as to be able to spray air toward the front of the housing (110), and preferably, as shown in FIG. 3, it can be attached so that only the nozzle (122) of the air distributor (120) is exposed to the front of the housing (110).

In order to expose only the nozzle (122) portion, the pipe (121) portion of the air distributor (120) can be attached to the inner wall surface of the housing (110), and the nozzles (122) installed in the pipe (121) can be exposed to the front through a hole (not shown) formed on the front surface of the housing (110).

In addition, at least one of the air guns (130) can be configured to precisely remove dirt or dust stuck to the user's skin or clothing while the user is holding the air gun (130), as shown in FIG. 1, and can be configured with a handle (131) connected to the air gun air supply pipe (152) and an exhaust hole (132) that sprays air supplied to the handle (131) to the outside.

Typically, a trigger (not shown) that performs a valve function is installed between the handle (131) and the discharge port (132). When the trigger is pulled while holding the handle, the air path of the handle opens and air is discharged through the discharge port (132).

This air gun (130) can remove dirt and dust more efficiently when used together with the air distributor (120) attached to the front of the housing.

At this time, as in one embodiment of the present invention (see FIG. 2) or another embodiment (see FIG. 3), the air gun (130) may be installed on one side and the other side of the housing (110), respectively, or may be installed in a footbath, etc., as in another embodiment of the present invention, as in FIGS. 4 and 5, so that the user may use the air gun (130) by holding it in both hands, or so that multiple users may use the air gun (130).

Meanwhile, the control panel (180) has a configuration including a power supply unit (180a), an ion generation control unit (184), an air supply control unit (181), a sterilization control unit (182), an air heater control unit (210), and a power circuit breaker (185) as shown in FIGS. 8 and 10, and performs overall control functions for the air supply unit (150), the ion generation unit (145), the sterilization unit (140), and the air heater (200) while installed on the outside of the housing (110).

At this time, among the components of the control panel (180), the power supply unit (180a) performs the function of rectifying the alternating current (AC) voltage and providing the driving voltage (i.e., direct current (DC) voltage) required by each unit.

In addition, as shown in FIG. 8, the ion generation control unit (184) has a configuration including an inverter (184a), a MOS FET (T2), a high-voltage transformer (HVT), and a high-voltage supply unit (184b), and performs a function of controlling the operation of the ion generation unit (145).

When the ion generation control unit (184) is supplied with a direct current voltage from the power supply unit (180a), the inverter (184a) performs an oscillation operation to generate a FET driving signal having a certain frequency (e.g., 60 Hz).

Accordingly, the MOS FET (T2) is turned on/off in response to the output voltage and frequency of the inverter (184a), so that a high voltage capable of driving a corona discharger is output from the secondary coil of the high-voltage transformer (HVT) whose primary coil is connected in series to the MOS FET (T2), and the AC high voltage output in this manner is filtered through the high voltage supply unit (184b) composed of a plurality of diodes and condensers and then supplied to the corona discharger (not shown) in the ion generator (145) to generate negative ions into the air in the housing (210) from the ion generator (145).

In addition, the air supply control unit (181) has a configuration including a constant voltage rectifier (181a), a push-type motor on/off control switch (181b), a motor on/off control unit (181c), and an AC motor drive unit (181d), as shown in FIG. 10, and performs a function of controlling the operation of the air supply unit (150).

At this time, among the components of the air supply control unit (181), the constant voltage rectifier (181a) has a configuration formed by mutually connecting a plurality of rectifier diodes, a constant voltage diode, a regulator, and a condenser, and performs the function of rectifying the input commercial AC voltage (e.g. AC 220 V) to a constant DC voltage (e.g. DC 12 V).

In addition, the push-type motor on/off control switch (181b) is installed in the input section of the motor on/off control section (181c) described below so that the user can control the operation of an AC motor equipped in a compressor or ring blower not shown.

In addition, the motor on/off control unit (181c) has a configuration formed by interconnecting a plurality of logic elements (two Not gates and two AND gates), a transistor, a plurality of diodes, a resistor, a capacitor, etc., and when the motor on/off control switch (181b) is turned "on", after a set time (t1), it automatically cuts off the DC voltage output from the constant voltage rectifier (181a) and supplied to the AC motor driving unit (181d).

That is, the motor on/off control unit (181c) has a function that turns it "ON" when the user presses the motor on/off control switch (181b) once, and "OFF" when pressed again, and at the same time, even if the user presses it to the "ON" state and then leaves it alone, after a set period of time (t1), the DC voltage output from the constant voltage rectifier (181a) and supplied to the AC motor drive unit (181d) is automatically cut off.

Of course, if the user wants to stop the AC motor from operating after turning the motor on/off control switch (181b) “on,” he can turn it “off” by pressing the motor on/off control switch (181b) again.

At this time, the time (t1) set by the motor on/off control unit (181c) is determined as the minimum time that can be taken by a user to remove dirt and dust by using the device of the present invention once, thereby reducing unnecessary power waste and extending the life of the AC motor.

Such an on/off time is determined by a time constant (TC) by the capacity of a capacitor (C1) connected in series with the motor on/off control switch (181b) at the input of the first and second Not gates (IC1, IC2) in the motor on/off control unit (181c) and the resistance values connected in parallel to the first and second Not gates (IC1, IC2). For example, the time constant can be set within a range of 30 to 60 seconds. However, the time constant is not limited to the above-mentioned example and can be changed depending on the work environment, etc.

The operating status of the above motor on/off control unit (181c) is described as follows.

For example, when the user turns the motor on/off control switch (181b) "on," the voltage charged in the electrolytic capacitor (C1) connected to the input terminal of the first Not gate (IC1) is applied to the first Not gate (IC1) through the motor on/off control switch (181b) for a predetermined time constant (TC) in conjunction with the resistors, so that the output of the first Not gate (IC1) becomes "low," and the output of the second Not gate (IC2) connected in series therewith becomes "high," so that the output of the second AND gate (IC4) installed between the output terminal of the second Not gate (IC2) and the input terminal of the electrically insulated optical coupling device (TLP) of the AC motor driving unit (181d) described below becomes "high," so that the AC motor driving unit (181d) supplies an AC voltage to the AC motor to operate it.

As described above, while an AC voltage is supplied to the AC motor (i.e., during a time constant (TC) determined by the electrolytic capacitor (C1) and resistors), the output of the first AND gate (IC3) installed between the output terminal of the second Not gate (IC2) and the base terminal of the transistor (Q1) is maintained in a “low” state, so the transistor (Q1) is maintained in an “off” state.

Thereafter, when the time determined by the electrolytic capacitor (C1) and the voltages elapses and the voltage of the electrolytic capacitor (C1) decreases or the motor on/off control switch (181b) is turned “off” by the user, the outputs of the first Not gate (IC1) and the second Not gate (IC2) become “high” and “low” respectively, so that the output of the second AND gate (IC4) also becomes “low”, so that the driving of the electrically insulated optical coupling device (TLP) in the AC motor driving unit (181d) is blocked, and the AC voltage supplied to the AC motor is blocked, so that the driving of the modem is automatically blocked.

In this way, when the output of the second Not gate (IC2) becomes "low", the output of the first AND gate (IC3) becomes "high", so the transistor (Q1) whose base is connected to the output terminal of the second Not gate (IC2) is "turned on", so that the input side of the first Not gate (IC1) is maintained in a state of being connected to ground (i.e., "low") through the transistor (Q1), so that no output signal is generated from the motor on/off control unit (181c).

In addition, the AC motor driving unit (181d) has a configuration formed by mutually connecting a plurality of semiconductor elements (e.g., an electrically insulated optical coupling device (TLP), SCR or TRIAC) and diodes and resistors, and the semiconductor elements are turned on/off in response to an output signal of the motor on/off control unit (181c), and performs a function of controlling the supply of an AC voltage applied to an AC motor equipped in a compressor or ring blower.

At this time, among the plurality of semiconductor elements provided in the AC motor driving unit (181d), the electrically insulated optical coupling element (TLP) operates in response to the output signal of the motor on/off control unit (181c) on the input side and controls the bias voltage supplied to the gates of SCRs or TRIACs connected to the output side, and the SCRs or TRIACs are turned on/off in response to the width (time) of the voltage output from the electrically insulated optical coupling element (TLP) and the rotational speed of the AC motor is controlled by controlling the supply time of the voltage supplied to the AC motor.

In addition, the air supply control unit (181) performs a function of controlling the operation of the air supply unit (150), and the power circuit breaker (185) performs a function of cutting off power when a malfunction occurs due to overcurrent or overload.

In addition, the sterilization control unit (182) is equipped with an on/off timer (182a) and a MOS FET (T1) for driving an LED, as shown in FIG. 8, and generates an on/off control signal at a set time interval to the sterilization unit (140).

At this time, the on/off operation time of the sterilizing unit (140) is determined by a time constant determined by the values of the resistor and capacitor coupled to the input of the on/off timer (182a). For example, if set to 2 to 5 minutes, when the initial operation switch is turned "ON", the on/off timer (182a) outputs an "on" signal to the LED driving MOS FET (T1) for 3 minutes, so the UV-A LED light source module (240a) and UV-C LED light source module (240b) in the sterilizing unit (140) are turned on for 2 to 5 minutes and then automatically turned off.

Here, the time constant (TC) of the on/off timer (182a) is not limited to the above example, i.e., 2 to 5 minutes, and may be changed in consideration of the overall size of the device of the present invention, including the area of the space within the sterilizing unit (210), and the number of times the device is used by users.

In addition, the reason why the on/off timer (182a) is installed in the sterilization control unit (182) of the present invention and the UV-ray irradiation time is limited is to prevent the ultraviolet rays irradiated from the UV-A LED light source module (240a) and the UV-C LED light source module (240b) in the sterilization unit (140) from being directly irradiated to the human body, which would cause harm to the human body.

Also, the reason why the time constant is set to, for example, 2 to 5 minutes by setting the resistance and capacitor values connected to the input section of the above-mentioned on/off timer (182a) is that it is determined through testing to be the optimal time required to sterilize various bacteria and respiratory viruses present in the air passing through the internal space of the above-mentioned sterilization section (140) having a predetermined volume (of course, this is not limited as described above) and set.

Here, if a user operates the device of the present invention to remove dirt and dust by using the device of the present invention, and the UV-A LED light source module (240a) and the UV-C LED light source module (240b) in the sterilization unit (140) are continuously turned on, even though there is no air passing through the inside of the sterilization unit (140) because the user is not using the device of the present invention, the light source module continues to be turned on, which unnecessarily wastes power, shortens the lifespan of each light source module, and if some of the ultraviolet rays leak outside the housing and are irradiated to the user, there is a concern that the user may be damaged by the ultraviolet rays. Therefore, in order to solve this problem, an on/off timer (182a) is installed in the sterilization control unit (182).

In addition, as described above, the air heater control unit (210) is equipped with a temperature setting unit (215), a temperature detection sensor (213), and a heater supply voltage control unit (216), and performs a function of automatically controlling the heating temperature of the heater (212) installed in the air heater (200) to within a temperature set by the user.

The operation of a dirt and dust remover to which one embodiment of the present invention configured as described above is applied is described as follows.

First, when power is supplied to the dust remover of the present invention and the device starts to operate, the ion generator (145) installed inside the housing (110) starts to operate, and the air inside the housing (110) starts to be deodorized and purified to be clean and fresh by the ion generator (145), and the air supply unit (150) and the sterilization unit (140) are activated, and the device enters an operation standby state.

In this state, when the user electrically activates (turns the operation switch ON) of the air gun operation switch (not shown) to use the air gun (130) or, after positioning the switch in the gate space (111) between two air distributors (120) arranged in parallel, for example, and then activates (i.e., turns “ON”) the motor on/off control switch (181b), the ion generator (145) is first activated, and various odors and malodors, including fine dust and microorganisms floating in the air inside the housing (110), are purified and deodorized through negative ions.

Next, as the air supply unit (150) operates, the UV-A LED light source modules (240a) and UV-C LED light source modules (240b) in the sterilizing unit (140) are turned on.

Accordingly, the air inside the housing (110) purified and deodorized by the ion generator (145) is sucked/compressed/exhausted by the air supply unit (150) including either a compressor (COM) or a ring blower motor (RBM), and then passes through the sterilization unit (140). In the process, the pathogenic factors of bacteria such as Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, and Streptococcus pneumoniae that may be contained in the air, as well as respiratory viruses such as calicivirus (FCV) and influenza A virus (IAV-H3N), are sterilized by the UV-A and UV-C ultraviolet rays irradiated from the UV-A LED light source modules (240a) and UV-C LED light source modules (240b).

The sterilized clean air passes through the air heaters (200), and after being heated to a temperature set by the user, is discharged through the handle (131) of the air gun (130) through the air gun air supply pipe (152) and into the discharge hole (132), or is discharged through the distributor air supply pipe (151) and into each nozzle (122) installed in the pipe (121) of the air distributor (120), thereby removing impurities such as dirt and dust on the user's skin or clothes, and provides the user with clean, fresh air sterilized of various pathogenic factors through the air gun (130) or the air distributor (120), thereby creating a hygienic usage environment.

A duster (100) to which an embodiment of the present invention is applied can be installed and used individually at a desired location without being restricted by location, with each component placed inside and outside the housing (110) having a substantially rectangular body shape as shown in FIG. 2 or an air gate type housing (110) having a gate space (111) as shown in FIG. 3. However, it is not limited thereto, and can also be used by additionally installing it in a booth of a foot wash place as shown in FIG. 4, which is widely installed and used at the exits of golf courses, hiking trail entrances, parks, beaches, outdoor sports fields, walking trails, etc.

As described above, the present invention is not limited to the described embodiments, and it is obvious to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention.

Accordingly, the embodiments of the present invention are merely illustrative in all respects and should not be construed as limiting, and can be implemented in various ways without departing from the technical idea or main characteristics thereof.

That is, although the detailed description of the present invention described above has been described with reference to preferred embodiments of the present invention, it will be understood by those skilled in the art or having common knowledge in the art that the present invention can be variously modified and changed within a scope that does not depart from the spirit and technical scope of the present invention described in the claims to be described later.

100; Duster to which the present invention is applied
110; Housing 111; Gate space
120; Air distributor
121; Pipe 122; Nozzle
130; Airgun
131; Handle 132; Discharge hole
140; Sterilization Department
140a; UV-A LED light source module 140b; UV-C LED light source module
145; Ion generator
150; Air supply section
151; Distributor air supply line 152: Air gun air supply line
180 : Control Panel
180a : Power supply
181: Air supply control unit 181a; Constant voltage rectifier unit
181b; Push type motor on/off control switch
181c; Motor on/off control unit 181d; AC motor drive unit
182; Sterilization Control Unit
182a; On/Off Timer T1; MOS FET for LED driving
184; Ion generation control unit
184a; Inverter T2; MOS FET
HVT; High voltage transformer 184b; High voltage supply
185; power circuit breaker
200 : Air heater
210 : Air heater control unit
211: Hull 212: Heater
212a; Coil type heater 212b; Plate type heater
213; Temperature detection sensor 214; Heated air passage rod
215; Temperature setting unit 216; Heater supply voltage control unit
217; Insulating material

Claims (6)

A housing forming the exterior;
An ion generating unit installed within the housing, which purifies and deodorizes various odors and unpleasant odors, including fine dust and microorganisms floating in the air within the housing;
An air supply unit including either a compressor or a ring blower motor, installed inside the housing, and supplying air by drawing in and compressing air within the housing and providing air to a user through at least one air distributor or air gun;
A sterilizing unit installed and connected to the outlet of the air supply unit, which irradiates UV-C and UV-A ultraviolet rays having a set wavelength into the air provided from the air supply unit to sterilize various bacteria and respiratory viruses, including microorganisms and harmful particles contained in the air;
At least one air heater having a configuration in which a heater is installed inside the hull, and installed between the outlet of the sterilizing unit and an air distributor or air gun, for heating air sterilized by ultraviolet rays through the sterilizing unit to a temperature desired by the user;
At least one air distributor or air gun mounted on the outside of the housing and providing heated hot air to the user through the air heaters; and
A control panel that performs overall control functions for the air supply unit, ion generator, sterilizer, and air heater while installed on the outside of the housing;
The above control panel,
A power supply unit that rectifies AC voltage and provides the driving voltage required by each part;
An ion generation control unit comprising: an inverter which generates a FET drive signal having a constant frequency through oscillation when a DC voltage is applied; a MOS FET which is turned on/off in response to the output voltage of the inverter; a high-voltage transformer (HVT) which boosts a low input voltage to a high output voltage; and a high-voltage supply unit which rectifies the high output voltage of the high-voltage transformer (HVT) and provides it to a corona discharger; and which controls the operation of the ion generation unit.
An air supply control unit comprising a constant voltage rectifier for rectifying an AC voltage into a constant DC voltage, a motor on/off control switch for controlling the operation of an AC motor equipped in an air compressor, a motor on/off control unit for outputting a driving signal to the AC motor drive unit when the motor on/off control switch is turned "on" and automatically cutting off the DC voltage output from the constant voltage rectifier and supplied to the AC motor drive unit when a predetermined time (t1) has elapsed, and an AC motor drive unit for controlling the supply of an AC voltage supplied to the AC motor and being operated on/off in response to an output signal of the motor on/off control unit, and controlling the operation of the air supply unit;
A sterilization control unit having an on/off timer and a MOS FET for driving an LED, and controlling the sterilization unit to turn on/off at set time intervals;
An air heater control unit having a temperature setting unit, a temperature detection sensor, and a heater supply voltage control unit, and automatically controlling the heating temperature of a heater installed in the air heater to within the user's set temperature; and
A duster including a power circuit breaker that cuts off power in the event of a malfunction due to overcurrent or overload.
delete In claim 1,
The above sterilization unit,
Multiple UV-C LED light source modules irradiating ultraviolet rays with a wavelength of 100∼280nm; and
A duster comprising a combination of at least one UV-A LED light source module that irradiates ultraviolet rays with a wavelength of 315 to 400 nm.
In claim 3,
At least one UV-A LED light source module,
It has a form in which multiple UV-A LEDs are connected in series with each other in multiple rows horizontally spaced apart from each other from the top and bottom,
The above multiple UV-C LED light source modules are,
A dust remover characterized in that two UV-C LEDs are connected in series with each other horizontally in a state where they are connected in series with each other, and one UV-A LED light source module is connected in parallel with each other.
In claim 1,
The above air heater,
A dust remover characterized in that at least a heated air passage rod having a diameter relatively smaller than the diameter of a cylindrical or square cylindrical body is installed inside the body, a coil-shaped heater is densely wound on the outer surface of the heated air passage rod, and an insulating material is installed on the outside of the body.
In claim 1,
The above air heater,
A dust remover characterized in that a plurality of plate-shaped heaters are installed at right angles to each other at a set distance inside a cylindrical or rectangular container, and the plate-shaped heaters are installed in a zigzag manner in the up-down or left-right directions so that air passing through the inside of the container has the longest possible contact time with the plate-shaped heaters, or are installed so as to have a form spaced apart from each other at a set distance while having a set angle difference, and a temperature detection sensor is installed on the air exhaust port side so as to detect the temperature of the air finally discharged, and an insulating material is installed on the outside of the container.