KR102195358B1 - Ultraviolet sterilizing apparatus - Google Patents

Abstract

The present invention relates to an ultraviolet sterilization apparatus which comprises: a main body forming an external shape; a plurality of LED modules disposed on the upper and lower parts of the main body and irradiating ultraviolet light upwardly opposite to each other; a power supply unit for supplying power to each LED module; and a control unit for controlling the driving of each LED module. Therefore, the ultraviolet sterilization apparatus is put inside a sterilization bag with a reflective layer that totally reflects ultraviolet light in different directions to sterilize an object to be sterilized and maintain the same in an antibacterial state.

Description

Ultraviolet sterilization device {ULTRAVIOLET STERILIZING APPARATUS}

The present invention relates to an ultraviolet sterilizing device, and more particularly, to an ultraviolet sterilizing device for sterilizing an object to be sterilized by irradiating ultraviolet light using an ultraviolet LED.

As users' interest in hygiene increases, UV sterilizers have been developed to remove bacteria, bacteria, viruses, etc. that are frequently used and easily contaminated, such as toothbrushes, smartphones, baby bottles, shoes, etc. Has become.

An ultraviolet sterilizer is a device that sterilizes an object to be sterilized by using a powerful sterilization function of ultraviolet rays having a wavelength of 10 nm to 400 nm, and includes an ultraviolet lamp that irradiates ultraviolet light and a transparent cover covering the ultraviolet light.

These ultraviolet sterilizers are currently manufactured in various sizes and uses to sterilize various sterilization targets, and are also configured to be sterilized by storing kitchen utensils such as toothbrushes and dishcloths and cutting boards, clothes, and feeding bottles in the body.

For example, in Patent Document 1 and Patent Document 2 below, ultraviolet sterilizer technology according to the prior art is disclosed.

Korean Patent Publication No. 10-2020-0002082 (published on January 8, 2020) Korean Patent Registration No. 10-1053154 (announced on August 2, 2011)

Meanwhile, as the use of masks has recently increased due to coronavirus infection-19 (COVID-19), interest in sterilizers capable of sterilizing masks is increasing.

However, the ultraviolet sterilizer according to the prior art is manufactured in the form of a module including an ultraviolet lamp, or in a form in which an ultraviolet lamp is installed inside a case having a specific shape.

The module-shaped ultraviolet sterilizer has a problem in that it is difficult to effectively sterilize a sterilizing object having an area such as a mask as ultraviolet rays are irradiated only at a specific location.

In addition, the ultraviolet sterilizer having an ultraviolet lamp installed inside the case has a problem in that objects that can be sterilized are limited due to the shape of the case.

In particular, in the case of a case manufactured using a synthetic resin material such as plastic, ultraviolet rays having a short wavelength are absorbed by the case, and thus there is a problem in that the object to be sterilized cannot be effectively sterilized.

An object of the present invention is to solve the above-described problems, and to provide an ultraviolet sterilization device capable of effectively sterilizing an object to be sterilized by irradiating ultraviolet light.

Another object of the present invention is to provide an ultraviolet sterilization device capable of increasing sterilization efficiency by preventing absorption of ultraviolet light and totally reflecting ultraviolet light in various directions.

In order to achieve the object as described above, the ultraviolet sterilization device according to the present invention comprises a main body forming an external shape, a plurality of LED modules disposed on the upper and lower portions of the main body and irradiating ultraviolet light upwardly opposite to each other, each LED It includes a power supply unit that supplies power to the module and a control unit that controls the driving of each LED module, and the body is put inside a sterilization bag having a reflective layer that totally reflects ultraviolet light in different directions to sterilize the object to be sterilized. It is characterized by maintaining the antibacterial state.

As described above, according to the ultraviolet sterilization apparatus according to the present invention, by irradiating ultraviolet light to the object to be sterilized in the LED module to sterilize contaminants such as viruses or bacteria present in the object to be sterilized, the object to be sterilized is maintained in an antibacterial state. The effect of being able to be obtained is obtained.

Further, according to the present invention, an ultraviolet sterilization device and a sterilization object are put together inside a sterilization bag in which a reflective layer coated with a reflective material such as aluminum is provided, and the ultraviolet light irradiated from the LED module is reflected in various directions to sterilize the sterilization object. It is possible, and the effect of further increasing the sterilization efficiency is obtained.

In addition, according to the present invention, the zipper portion is applied to the pouch-shaped sterilization bag to shield the light irradiated from the LED module from leaking to the outside, and when the sterilization operation of the object to be sterilized is completed, the resin cap of the zipper portion and the female zipper are separated. The effect that the object to be sterilized and the ultraviolet sterilizer can be easily removed is obtained.

Accordingly, according to the present invention, it is possible to effectively sterilize the sterilization object by putting it inside the sterilization bag, and to store it in an antibacterial state inside the sterilization bag, and to prevent contamination in the process of taking out the sterilization object during use. Lose.

1 is a perspective view of an ultraviolet sterilizing device according to a preferred embodiment of the present invention,
Figure 2 is a block diagram of the ultraviolet sterilizer shown in Figure 1;
3 is a perspective view of a main body provided in the ultraviolet sterilizing device shown in FIG. 1;
Figure 4 is an exploded perspective view of the main body shown in Figure 3,
5 is a perspective view of the first cover shown in FIG. 4 from a different angle;
6 is a diagram illustrating an optical spectrum,
7 is a cross-sectional view taken along line AA′ of the sterilizing bag shown in FIG. 1;
8 is a flowchart for explaining step-by-step a method of operating an ultraviolet sterilizing device according to a preferred embodiment of the present invention.

Hereinafter, an ultraviolet sterilizing device according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of an ultraviolet sterilizing device according to a preferred embodiment of the present invention, and FIG. 2 is a block diagram of the ultraviolet sterilizing device shown in FIG. 1. And Figure 3 is a perspective view of the body provided in the ultraviolet sterilization device shown in Figure 1, Figure 4 is an exploded perspective view of the body shown in Figure 3, Figure 5 is a perspective view of the first cover shown in Figure 4 from a different angle to be. In addition, FIG. 6 is a diagram illustrating an optical spectrum, and FIG. 7 is a cross-sectional view taken along line A-A′ of the sterilizing bag shown in FIG. 1.

In this embodiment, a configuration for sterilizing by irradiating ultraviolet light onto a mask provided with an object to be sterilized (hereinafter referred to as a'sterilization object') 11 will be described.

Of course, it should be noted that the present invention is not necessarily limited thereto, and may be modified to sterilize objects of various shapes and sizes, such as a toothbrush, a smartphone, a baby bottle, and shoes, as well as a mask.

And hereinafter, terms indicating directions such as'left','right','front','rear','upward', and'downward' indicate each direction based on the state shown in each drawing. define.

The ultraviolet sterilization device 10 according to a preferred embodiment of the present invention, as shown in Figs. 1 and 2, is disposed on the main body 20 forming the outer shape, upper and lower portions of the main body 20, and irradiates ultraviolet light. It includes a plurality of LED modules 30, a power supply unit 40 for supplying power to each LED module 30, and a control unit 50 for controlling the driving of each LED module 30.

In addition, the ultraviolet sterilizing device 10 according to a preferred embodiment of the present invention includes a power switch 60 that switches on and off the power by a user's manipulation and a display unit that displays the operating state of the ultraviolet sterilizing device 10 ( 70) may be further included.

In addition, the ultraviolet sterilization device 10 according to a preferred embodiment of the present invention is a sterilization target by totally reflecting the light irradiated from the LED module 30 in a state in which the body 20 and the sterilization target 11 are accommodated together. It may further include a sterilizing bag 100 for sterilizing (11).

The main body 20 is coupled to each other, the first and second covers 21 and 22 formed in a cylindrical shape having an open cross section of an approximately circular or elliptical shape, and the combined first and second covers 21, It may be formed in a substantially cylindrical shape or a tablet shape including the third cover 23 coupled to the opening side of 22).

Inside the first and second covers 21 and 22, as shown in FIG. 4, the first and second spaces S1 and S2 in which a plurality of LED modules 30 are installed in opposite directions and power supply A plurality of partition walls 24 partitioning the third space S3 in which the supply unit 40 is installed may be formed.

For example, the partition wall 24 is a pair formed horizontally so that the first to third spaces S1 to S3 are vertically formed along the length direction of the first and second covers 21 and 22. Can be provided.

Therefore, a first space S1, a third space S3, and a second space S2 may be sequentially disposed inside the first and second covers 21 and 22 from the top to the bottom.

Any one of the first and second covers 21 and 22, for example, the first cover 21 has a plurality of coupling protrusions toward the second cover 22 on the surface facing the mating cover, that is, the second cover 22 25 is formed, and a plurality of coupling grooves 26 to which a plurality of coupling protrusions 25 are respectively coupled may be formed in the second cover 22.

Therefore, the first and second covers 21 and 22 are firmly coupled by the plurality of coupling protrusions 25 and the coupling groove 26, and as seen in FIG. 3, the left side may have an open cylindrical shape.

The third cover 23 may be formed in a cylindrical shape with an open right side as shown in FIGS. 3 and 4.

The third cover 23 corresponds to the outer diameters of the first and second covers 21 and 22 so that they can be coupled to the opening side of the combined first and second covers 21 and 22 and to the left side when viewed in FIG. 3. It can be manufactured with an inner diameter that is.

In FIGS. 4 and 5, a fixing groove 27 is formed extending from one open end toward the opposite side on the outer surface of the first cover 21, and corresponding to the fixing groove 27 on the inner surface of the third cover 23. The fixing protrusion 28 may be formed in the position that is to be.

As shown in FIG. 5, the end of the fixing groove 27 may be double bent in an approximately'⊃' shape. So, the third cover 23 is rotated in one direction so that the fixing protrusion 28 is coupled along the fixing groove 27 and then caught on the end of the double bent fixing groove 27, the combined first and It is possible to maintain a state that is firmly coupled to the second cover (21.22). And the third cover 23 can be easily separated from the first and second covers 21.22 by rotating in the opposite direction while the fixing protrusion 28 is caught on the end of the fixing groove 27.

Again in FIGS. 2 and 3, the LED module 30 may be provided as a pair of irradiating ultraviolet light in opposite directions to each other.

Each LED module 30 may include one or more ultraviolet LEDs 31 emitting ultraviolet rays and a substrate 32 on which the ultraviolet LEDs 31 are installed.

When white light passes through the prism, an ultraviolet region, a visible region, and an infrared region are distributed in a wavelength region of about 10 nm to 1 mm, as shown in FIG. 6.

Among them, ultraviolet rays are distributed as light having an energy range of about 3 eV to 124 eV in the ultraviolet region of about 10 nm to 400 nm. The ultraviolet light is a generic term for electromagnetic waves having a shorter wavelength than visible light and longer than X-rays.

These ultraviolet rays are classified into ultraviolet A (UV-A), ultraviolet B (UV-B), and ultraviolet C (UV-C) according to the wavelength range.

The ultraviolet ray A has a wavelength range of about 320 nm to 400 nm and is not absorbed by the ozone layer. Although the amount of energy of UV A is less than that of UV B, it burns the skin and acts on the skin's immune system to cause long-term skin damage due to skin aging.

Ultraviolet B has a wavelength range of about 280 nm to 320 nm, most of it is absorbed by the ozone layer, and only a part of it reaches the ground surface. Such ultraviolet B has the greatest sterilizing power, burns the skin of an animal body, penetrates the skin tissue, and sometimes causes skin cancer.

Ultraviolet C has a wavelength range of about 100 nm to 280 nm, and is completely absorbed by the ozone layer. Such ultraviolet C has bactericidal power that can kill contaminants such as single-celled organisms, that is, viruses and bacteria.

In this embodiment, the ultraviolet light irradiated from the LED module 30 has a wavelength of about 100 nm to 280 nm, preferably about 265 nm to 285 nm, to maximize sterilization power while removing adverse effects on the human body. Can have.

The sterilization effect of such ultraviolet rays is directly proportional to the accumulated amount of ultraviolet rays (radiation intensity × irradiation time) to be irradiated, but the survival rate (S) of bacteria decreases almost exponentially with respect to the irradiation amount (radiation intensity × irradiation time). It can be expressed by Equation 1 of.

[Equation 1]

Here, S is the survival rate of sterilization, P is the sterilization water after irradiation, P ₀ is the sterilization water before irradiation, e is the radiation intensity of the sterilization line [㎼/㎠], Et is the irradiation time (min), and Q is the survival rate (S). It is the amount of sterilization radiation required to make 1/e (36.8%) [㎼·min].

According to the results of sterilization experiments for swine flu, hand, foot and mouth, E. coli, salmonella, staphylococcus, etc. using ultraviolet light as described above at room temperature, it was confirmed that about 99.9% or more of the sterilization effect could be obtained within about 10 minutes. .

As described above, according to the present invention, the object to be sterilized by the LED module is irradiated with ultraviolet light to sterilize contaminants such as viruses and bacteria present in the object to be sterilized, thereby maintaining the object to be sterilized in an antibacterial state.

Meanwhile, as shown in FIG. 4, in the main body 20, first and second installation holes 201 and 202 may be provided at the top and bottom, respectively, so that a pair of LED modules 30 can be installed.

That is, the first installation hole 201 is formed on the left upper surface of the first and second covers 21 and 22 and the upper surface of the third cover 23, and the right side of the first and second covers 21 and 22 A second installation hole 202 may be formed on the lower surface. Of course, a plurality of first and second installation holes 201 and 202 may be provided so as to correspond to the number of LED modules 30, respectively.

As described above, according to the present invention, by arranging a plurality of LED modules to irradiate ultraviolet light in opposite directions to each other, the range of sterilization by ultraviolet light can be increased.

Any one of a pair of LED modules 30, for example, to the LED module 30 installed in the first installation hole 201, supplies power supplied from the power supply unit 40 to each LED module 30, and A control unit 50 for controlling the driving of the LED module 30 may be provided.

In FIG. 2, the controller 50 controls driving of each LED module 30 according to the driving program by executing a driving program stored in the memory 51.

For example, when the power switch 60 is turned on, the control unit 50 controls to receive power from the power supply unit 40 and supply power to each device.

The controller 50 may count time using a timer (not shown) provided therein, and control the driving of the LED module 30 and the display unit 70 according to a preset time.

That is, the control unit 50 is provided on the display unit 70 to light the LED 71 for indicating the operation state for a preset first set time, and then drives the ultraviolet LED 31 for a preset second set time. Driving of each LED module 30 can be controlled to irradiate ultraviolet light.

For example, the first set time may be set to about 2 seconds to 10 seconds, and the second set time may be set to about 10 seconds to 200 seconds.

Of course, the present invention is not necessarily limited thereto, and the first and second set times may be variously changed and set according to various conditions such as the amount of irradiation of ultraviolet light or the shape and size of the object to be sterilized.

Subsequently, when the second set time elapses, the control unit 50 stops driving the display unit 70 and the LED module 30, cuts off the power supplied to each device, and then turns the power switch 60 back on. It can be controlled to wait for the ON operation.

The power supply unit 40 may include a battery 41 charged with power and a voltage converter 42 that converts a voltage level of driving power supplied from the battery 41 into a voltage level required for driving each device.

Of course, the present invention may be modified to further apply a rechargeable storage battery to the power supply unit 40 and a charging circuit (not shown) for charging the storage battery by receiving commercial power.

On the other hand, the first and second covers 21 and 22 of the main body 20 and the power terminals electrically connected by contacting the electrodes of the battery 41 at both ends of the third space S3 inside the third cover 23 (Not shown) may be provided.

For example, the power terminal may be configured to connect two cylindrical batteries 41 in series.

That is, a bridge (not shown) may be provided on the inner surface of the rear end of the third cover 23 to connect one of the two batteries 41 with one of the negative pole and the other positive pole. The bridge may be manufactured by bending one end of an electrode plate made of a conductor material such as copper or iron so as to protrude toward the inside of the spring and the third space S3.

So, until the combined first and second covers 21 and 22 and the third cover 23 are completely combined by the rotational motion, the fixing protrusion 28 of the third cover 23 is the fixing groove 27 The power terminal and the electrode of the battery 41 do not contact until the end of the battery is caught.

Accordingly, according to the present invention, power is not supplied to the LED module before the first and second covers and the third cover are completely coupled by a rotation operation, thereby minimizing irradiation of ultraviolet light that may be harmful to the human body.

The power switch 60 performs a switching operation to turn on and off the power supply line connected to the power supply unit 40 by an operation applied by a user.

To this end, the power switch 60 is provided on one side of the main body 20, and may be provided with various types of switches that are electrically turned on and off by mechanical manipulation, such as a push switch or a toggle switch.

Alternatively, the power switch 60 is installed at the coupling portion of the first and second covers 21 and 22 and the third cover 23 to be electrically turned on and off according to the rotation angle of the third cover 23. It may be provided as a contact switch that operates.

The display unit 70 may include one or more LEDs 71 for irradiating visible light, that is, a color preset to display the operating state of the ultraviolet sterilizer 10.

The display unit 70 may be turned on for the first set time according to a control signal from the control unit 50 and turned off together with the LED module 30 when the sterilization operation for the second set time is completed.

In FIGS. 1 and 7, the sterilization bag 100 has a substantially rectangular cross-section, and may be provided as a pouch-shaped body 101 with an open top, for example.

The body 101 is made of a synthetic resin material such as polyester (PE), polytetrafluoroethylene (PTFE), polypropylene (PP), etc. It can be manufactured in a rough pouch shape.

On the inner surface of the body 101, a reflective layer 102 coated with a reflective material such as aluminum, for example, is provided to reflect ultraviolet light irradiated from the LED module 30 at various angles to increase sterilization efficiency. Can be.

In this way, the present invention puts together an ultraviolet sterilization device and a sterilization object inside a sterilization bag in which a reflective layer coated with a reflective material such as aluminum is provided, and sterilizes the sterilization object by reflecting the ultraviolet light irradiated from the LED module in various directions. And sterilization efficiency can be further increased.

A zipper portion 103 may be provided on the upper portion of the body 101 to open and close the opened upper end.

The zipper portion 103 may include a resin fastener 104 installed on one side of the panels on both sides of the body 101 and an female zipper 105 installed on the opposite panel and coupled to or separated from the resin pad 104.

As described above, the present invention applies a zipper portion to a pouch-type sterilization bag to shield the light irradiated from the LED module from leaking to the outside, and when the sterilization operation of the object to be sterilized is completed, the resin cap of the zipper portion and the arm zipper are separated to sterilize The object and ultraviolet sterilizer can be easily removed.

Next, a coupling relationship and an operation method of the ultraviolet sterilizer according to an exemplary embodiment of the present invention will be described in detail with reference to FIG.

8 is a flowchart illustrating step-by-step a method of operating an ultraviolet sterilizing device according to a preferred embodiment of the present invention.

First, the operator assembles the LED module 20, the power supply unit, the control unit 50, the power switch 60 and the display unit 70, respectively, in the first to third spaces (S1 to S3) of the first cover 21 do.

At this time, the LED modules 30 provided as a pair are in the first space (S1) and the second space (S2) respectively formed at the top and bottom by a pair of partition walls 24 inside the first cover 21, respectively. Is placed. Thus, a pair of LED modules 30 are installed to irradiate ultraviolet light to opposite sides through respective installation holes 201 and 202 respectively formed on the upper and lower surfaces of the first cover 21, respectively.

Next, the first cover 21 and the second cover 22 are combined, and the third and second covers 21 and 22 are formed in the central part of the first and second covers 21 and 22 to which the battery 41 of the power supply unit 40 is combined. It is joined to the space (S3).

In addition, the combined first and second covers 21 and 22 and the third cover 23 are combined to complete the assembly of the ultraviolet sterilization device 10.

When the assembly of the ultraviolet sterilization device 10 is completed, the user turns on the power switch 60 to drive the ultraviolet sterilization device 10 (S10).

So, when the power switch 60 is turned on, the control unit 5 controls to receive power from the power supply unit 40 and supply it to each device.

At this time, the control unit 50 counts the time using a timer (not shown) provided therein, and turns on the LED 71 provided on the display unit 70 for a first preset time, so that the ultraviolet sterilization device 10 Control to display the operating state of (S12).

When the normal operation state of the ultraviolet sterilization device 10 is confirmed through the lighting operation of the LED 12, the user inserts the ultraviolet sterilization device 10 and the sterilization object 11 into the sterilization bag 100, and (100) Close the zipper portion 103 provided at the top (S14).

Then, the control unit 50 controls the driving of each LED module 30 to irradiate the ultraviolet light by driving the ultraviolet LED 31 for a second preset time.

At this time, the pair of LED modules 30 installed in opposite directions to each other irradiate ultraviolet light by turning on the ultraviolet LED 31 according to the control signal of the control unit 50 (S16).

In this way, ultraviolet light irradiated in opposite directions from the pair of LED modules 30 is totally reflected at various angles by the reflective layer 102 formed on the inner surface of the sterilization bag 100 to sterilize the sterilization object 11, that is, the mask. Do (S18).

In step S20, after driving the LED module 30, the control unit 50 checks whether the counted time has passed the second set time using a timer.

As a result of the inspection in step S20, if the second set time has not passed, the control unit 50 proceeds to step S16 and repeats steps S16 to S20.

On the other hand, if the second set time has elapsed as a result of the inspection in step S20, the control unit 50 stops driving the display unit 70 and the LED module 30, and cuts off the power supplied to each device.

Subsequently, the controller 50 returns to step S10 again and waits until the power switch 60 is turned on, and when the power switch is turned on, the subsequent steps may be repeatedly performed.

Through the process as described above, the present invention can keep the object to be sterilized in an antibacterial state by irradiating ultraviolet light to the object to be sterilized in the LED module to sterilize contaminants such as viruses or bacteria present in the object to be sterilized.

In addition, in the present invention, an ultraviolet sterilization device and a sterilization object are put together in a sterilization bag in which a reflective layer coated with a reflective material such as aluminum is provided, and the ultraviolet light irradiated from the LED module is reflected in various directions to sterilize the sterilization object. And, it is possible to further increase the sterilization efficiency.

In addition, the present invention applies a zipper portion to a pouch-type sterilization bag to shield the light irradiated from the LED module from leaking to the outside, and when the sterilization operation of the object to be sterilized is completed, the resin cap of the zipper portion and the arm zipper are separated to And UV sterilizer can be easily removed.

Although the invention made by the present inventor has been described in detail according to the above embodiment, the invention is not limited to the above embodiment, and it goes without saying that the invention can be changed in various ways without departing from the gist.

That is, in the above embodiment, it has been described that the power switch is turned on and then inserted into the sterilization bag, but the present invention may be changed to apply a sensing unit including a sensor that detects shock or vibration.

Accordingly, the present invention may be modified to sterilize the sterilization object by driving the ultraviolet sterilization device by tapping or touching the main body from the outside of the sterilization bag after the user inserts the ultraviolet sterilization device into the sterilization bag.

The present invention is applied to an ultraviolet sterilization device technology in which an object to be sterilized is irradiated with ultraviolet light to sterilize contaminants such as viruses or bacteria present in the object to be sterilized to maintain an antibacterial state.

10: UV sterilizer
11: Object to be sterilized
20: main body 201.202: 1st, 2nd installation hole
21, 22: first, second cover 23: third cover
24: bulkhead 25: coupling protrusion
26: coupling groove 27: fixing groove
28: fixing protrusions S1 to S3: first to third spaces
30: LED module 31: UV LED
40: power supply 41: battery
42: voltage converter
50: control unit 51: memory
60: power switch
70: display unit 71: LED
100: sterile bag 101: body
102: reflective layer 103: zipper portion
104: resin fur 105: female zipper

Claims (5)

The body forming the appearance,
A plurality of LED modules disposed on the upper and lower portions of the main body and irradiating ultraviolet light upwardly opposite to each other,
Power supply to supply power to each LED module,
A control unit that controls the driving of each LED module,
A power switch that switches on and off the power by user's operation, and
Including a display for displaying the operating state of the ultraviolet sterilizer,
The main body is put inside a sterilization bag in which a reflective layer that totally reflects ultraviolet light in different directions is formed on the inner surface to sterilize the object to be sterilized to maintain the antibacterial state,
The body is coupled to each other to open one side and the first and second covers formed in a cylindrical shape having a circular or elliptical cross section,
It is formed in a cylindrical shape or a tablet shape including a third cover coupled to the opening side of the coupled first and second covers,
A plurality of partition walls are formed inside the first and second covers to partition the first and second spaces in which the plurality of LED modules are installed in opposite directions and a third space in which the power supply unit is installed,
The plurality of LED modules include at least one ultraviolet LED emitting UVC having a wavelength range of 265 nm to 285 nm to maximize sterilization power while removing adverse effects of ultraviolet light on the human body,
Including a substrate on which the ultraviolet LED is installed,
At least one or more first and second installation holes are formed on the upper and lower surfaces of the main body to install the respective ultraviolet LEDs provided in the plurality of LED modules,
The control unit counts time using a timer provided therein, and when the power switch is turned on, an LED provided on the display unit for indicating the operation state of the ultraviolet sterilizer is turned on for a preset first set time,
Ultraviolet sterilization apparatus, characterized in that controlling the driving of each LED module to irradiate the ultraviolet light by driving each of the ultraviolet LEDs provided in the plurality of LED modules for a preset second set time. delete The method of claim 1,
A plurality of coupling grooves in which the plurality of coupling protrusions are coupled to each other are formed on the facing surfaces of the first and second covers toward the counterpart cover,
The third cover is manufactured with an inner diameter corresponding to the outer diameter of the first and second covers so as to be coupled to the opening side of the coupled first and second covers,
On the outer surface of the first cover, a fixing groove is formed extending from one opened end toward the opposite side,
A fixing protrusion is formed on the inner surface of the third cover at a position corresponding to the fixing groove,
Ultraviolet sterilization apparatus, characterized in that the end of the fixing groove is double bent so that the fixing protrusion is engaged after being coupled along the fixing groove. delete delete

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