KR20170041947A - Uv sterilizer - Google Patents

Abstract

An invention for a UV sterilization apparatus is disclosed. The disclosed invention comprises: a main body part installed in a furniture and having an opening formed at one side thereof; A rail portion provided inside the body portion and forming a movement path in the front and rear direction extending from the opening toward the back surface of the body portion in the body portion; A storage space for accommodating the device to be sterilized is formed in the interior and is movably coupled to the rail part so as to be detachably installed in the main body through the opening and is accommodated in the inside of the case at the storage position, A drawer portion for exposing to the outside of the opening; An LED installed inside the main body and illuminated to emit ultraviolet rays toward the accommodation space; An ultraviolet ray detection unit for detecting and measuring ultraviolet rays irradiated to the accommodation space; And a control unit for controlling the operation of the LED according to the ultraviolet radiation dose detected by the ultraviolet ray sensing unit.

Description

UV Sterilizer {UV STERILIZER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a UV sterilizing apparatus, and more particularly, to a UV sterilizing apparatus used for sterilizing various kinds of small appliances used in contact with a human body.

Various kinds of tools used in the home, such as kitchen utensils such as cutting boards, pants, cloths, tableware, and small appliances such as earphones, nail clipper, toys, and mobile phones, Which is easily exposed to the environment.

Kitchen utensils such as chopping boards, sideways baskets, dishwashers, and dishwasher baskets are susceptible to contamination by residues or residue of foodstuffs poured into kitchens and are frequently exposed to moisture, And the risk of contamination by bacteria is high.

In addition, small devices such as earphones, nail clipper, toys, and mobile phones are stored in various places such as pockets, bags, and vehicles because of convenience of users, rather than being stored in a specific case. And is always exposed to the air, thereby being exposed to an environment in which the bacteria floating in the air can easily flow.

In addition, since many devices such as earphones, nail clipper, mobile phones, etc. are often turned and used in small devices, there is a concern that the bacteria that one person possesses may be transmitted to an unspecified number of people through a small device There is also.

In addition, the kitchen appliances and small appliances listed above are not frequently washed compared to their frequency of use, and thus the risk of bacterial contamination is higher.

It is therefore necessary to remove the germs present in the various tools used in the home, but cleaning the tool with detergent each time is a cumbersome task and may not be possible depending on the type of small appliance.

In addition, the cleaning method using the detergent not only consumes much time and expense, but also makes it difficult to remove foreign substances that are not visible, and there is a limit in blocking the breeding of the microorganisms.

An object of the present invention is to provide a UV sterilizing device capable of removing germs present in kitchen appliances, small appliances and the like easily and quickly at home.

A UV sterilizing apparatus according to the present invention comprises: a main body part installed in furniture and having an opening formed at one side thereof; A rail portion provided inside the body portion and forming a movement path in a back and forth direction extending from the opening toward the rear surface of the body portion; A housing accommodating space for housing a device to be sterilized is movably coupled to the rail and is detachably installed in the main body through the opening, A drawer part for exposing the accommodating space to the outside of the opening; An LED installed inside the main body and illuminated to emit ultraviolet rays toward the accommodation space; An ultraviolet ray sensing unit for sensing and measuring ultraviolet rays irradiated to the accommodation space; And a control unit for controlling the operation of the LED according to the ultraviolet radiation amount detected by the ultraviolet ray sensing unit.

Preferably, the control unit controls the operation of the LED so that the lighting of the LED is maintained until the ultraviolet radiation amount measured by the ultraviolet ray sensing unit reaches a predetermined set value.

The present invention may further include an indicator lamp that is installed on the outside of the main body or the drawer to indicate whether the LED is lit or not.

In addition, the controller may control the lighting of the indicator depending on whether the ultraviolet ray sensing unit detects ultraviolet rays.

Further, the present invention may further comprise an opening / closing sensing unit for sensing whether the opening is opened or closed; Preferably, the control unit controls the operation of the LED according to whether the opening sensed by the opening / closing sensing unit is opened or closed.

Preferably, the opening / closing detector includes a trigger switch installed in the main body and operated to be pressed by the interference with the drawer unit.

Further, the present invention further includes a magnet member installed in the drawer portion; Preferably, the opening / closing detector includes a sensor installed in the main body to sense the magnetic flux of the magnet member.

Further, the drawer portion may be formed in a shape of a box having the accommodating space opened upward, The LED may be installed on the upper surface of the main body facing the bottom surface of the drawer.

And a reflector for reflecting ultraviolet light emitted from the LED toward the accommodation space.

Preferably, the reflector is formed by coating aluminum on the upper surface of the main body and at least a part of the inner surface of the drawer portion surrounding the receiving space.

Preferably, the present invention further includes a shelf installed in the receiving space to be spaced apart from a bottom surface of the drawer part.

Further, it is preferable that the shelf is formed in a grill shape having a plurality of through holes.

Further, the shelf is preferably formed in the form of a plate made of PMMA.

In addition, it is preferable that a plurality of the ultraviolet ray sensing units are installed in the receiving space at positions spaced apart from each other.

Preferably, the controller compares measured values of the ultraviolet radiation amount measured by the plurality of ultraviolet ray sensing units with each other, and acquires information on the measured sensitivity of each of the ultraviolet ray sensing units based on the measured values.

Also, the control unit may be configured to turn on the LED during a set time for testing, to compare the measurement value of the ultraviolet radiation amount measured by the ultraviolet ray sensing unit with the comparison target value during the lighting time of the LED, Or not.

Further comprising a timer for inputting the lighting time of the LED;

The controller may control the operation of the LED so that the lighting time of the LED is adjusted according to the time input through the timer.

It is also preferable that the LED emits ultraviolet rays having a peak wavelength within 200 to 280 nm.

Also, it is preferable that the present invention is installed in a buit-in form in furniture.

According to the UV sterilizing apparatus of the present invention, it is possible to easily and easily sterilize ultraviolet rays for kitchen appliances and small appliances by simply inserting a device to be sterilized into the furniture provided in the form of a drawer, By eliminating this high efficiency, bacteria present in various kinds of kitchen appliances and small appliances can be easily, quickly and effectively removed at home.

In addition, since the present invention can be installed in a built-in form in furniture such as a kitchen furniture, a drawer cabinet, a cabinet, and the like, it naturally matches with the interior of a house and can be conveniently used at home. In addition, , An ultraviolet radiation notification function, and an automatic correction of the measurement sensitivity of the ultraviolet ray detection unit.

The present invention further improves the operation efficiency of the apparatus by allowing the ultraviolet rays to be irradiated only when the safety conditions provided in multiple, such as the switch operation, the opening closing detection through the opening / closing detection unit, and the operation time setting through the timer, And it is possible to effectively reduce the risk of safety accidents and leakage of ultraviolet rays.

1 is a perspective view showing a UV sterilizing apparatus according to an embodiment of the present invention.
2 is a cross-sectional view showing a cross section of a UV sterilizing apparatus according to an embodiment of the present invention.
3 is a configuration diagram showing a configuration of a UV sterilizing apparatus according to an embodiment of the present invention.
4 is a view showing an example of using a UV sterilizing apparatus according to an embodiment of the present invention.
FIGS. 5 and 6 are graphs showing inactivation values of E. coli according to UV irradiation time and irradiation amount of a UV sterilizer according to an embodiment of the present invention.
FIGS. 7 and 8 are graphs showing inactivation levels of Staphylococcus aureus according to UV irradiation time and irradiation amount of UV sterilizing apparatus according to an embodiment of the present invention.
9 is a cross-sectional view showing another example of the UV sterilizing apparatus according to an embodiment of the present invention.
10 is a view showing an example of use of the UV sterilizing apparatus shown in Fig.

Hereinafter, an embodiment of a UV sterilizing apparatus according to the present invention will be described with reference to the accompanying drawings. For convenience of explanation, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a perspective view illustrating a UV sterilizer according to an embodiment of the present invention, FIG. 2 is a cross-sectional view illustrating a UV sterilizer according to an embodiment of the present invention, and FIG. Fig. 7 is a configuration diagram showing a configuration of a UV sterilizing apparatus according to an example.

1 to 3, a UV sterilizer 100 according to an embodiment of the present invention includes a body 110, a rail 120, a drawer 130, an LED 140, Unit 150 and a control unit 160. [0031]

The main body 110 constitutes the main body of the UV sterilizer 100 according to the present embodiment and is installed in the furniture 1. [ In this embodiment, the main body 110 and the UV sterilizing apparatus 100 including the main body 110 are illustrated as being installed in a built-in form in a furniture 1 such as a kitchen furniture, a drawer, a cabinet, and the like.

For example, the main body 110 may be formed in a shape having a space formed therein, and an opening 111 is formed at one side of the main body 110.

The rail 120 is installed inside the main body 110 and forms a movement path in the back and forth direction extending from the opening 111 toward the back surface of the main body 110 inside the main body 110 . These rails 120 may be provided on both sides of the inside of the main body 110, respectively.

The drawer part 130 is movably coupled to the rail part 120 and is formed to be drawable to the main body part 110 through the opening 111.

In this embodiment, the drawer unit 130 is illustrated as being formed in the form of a body having a shape corresponding to the internal shape of the main body 110. In the interior of the drawer unit 130, a receiving space for receiving the device (a) to be sterilized is formed, and the upper portion of the receiving space is opened toward the inside of the main body 110.

The LED 140 is installed on the inside of the main body 110, more specifically, on the upper surface of the inside of the main body 110 facing the bottom surface of the drawer 130, .

The LED 140 irradiates the ultraviolet ray having a peak wavelength of 200 to 280 nm toward the device 1 to be sterilized and accommodated in the accommodation space and the accommodation space. The surface of the device 1 to be sterilized A plurality of light sources are provided so as to be spaced apart from each other by a predetermined distance so that ultraviolet light can be uniformly irradiated.

Among ultraviolet rays, ultraviolet rays having peak wavelengths of 270 to 280 nm, particularly ultraviolet rays having peak wavelengths of 275 nm, are excellent in sterilizing effect.

In this embodiment, it is exemplified that the LED 140 is configured to emit ultraviolet rays having a peak wavelength at 275 nm. By the action of the LED 140 thus provided, The sterilizing action can be actively performed.

However, in order to obtain an effective level of bactericidal effect, ultraviolet rays having a peak wavelength of about 250 to 280 nm may be used in the UVC region.

Meanwhile, the UV sterilizing apparatus 100 according to the present embodiment may further include a reflector 135.

The reflector 135 is formed on the main body 110 and the drawer 130 to reflect the ultraviolet light emitted from the LED 140 to the receiving device and the accommodation device.

The reflective portion 135 may be formed by coating aluminum on the upper surface of the main body portion and at least a portion of the inner surface of the drawer portion 130 surrounding the accommodation space with a high reflectance of ultraviolet light. Various other materials may be used as the coating material.

The reflector 135 thus formed reflects ultraviolet rays irradiated from the LED 140 toward the sterilizing device 1 accommodated in the accommodation space and the accommodation space and concentrates the irradiation area of the ultraviolet rays toward the sterilizing device 1 , So that the sterilizing action of the device 1 to be sterilized by ultraviolet rays can be made more effective.

The ultraviolet ray detection unit 150 is provided to detect and measure ultraviolet rays irradiated to the accommodation space. The ultraviolet ray sensing unit 150 may include a light receiving element that can be installed on the inner wall surface or the bottom surface of the drawer unit 130 irradiated with ultraviolet rays and absorbs the light wavelength of the ultraviolet region band to generate an electric signal have.

In addition, the UV sterilizer 100 of the present embodiment may further include an opening / closing detector 170 for detecting whether the opening 111 is open or closed, that is, whether the drawer 130 is drawn out.

The ultraviolet rays irradiated from the LED 140 may leak to the outside when the drawer unit 130 is drawn out from the main body 110 and the opening 111 is opened or the opening 111 is not closed properly. It is necessary to check whether the drawer unit 130 is properly inserted into the inside of the main body 110 and the opening 111 is closed before and after the LED 140 is turned on in order to prevent the ultraviolet rays irradiated from the LEDs 140 from leaking out. .

The opening and closing sensor 170 is provided to acquire information for confirming whether the drawer unit 130 is properly inserted into the main body 110 to close the opening 111. [

For example, the opening / closing sensing unit 170 may include a magnet unit in the drawer unit 130 and a sensor for sensing the magnetic flux of the magnet unit may be installed in the main unit 110.

As another example, two or more trigger switches (not shown) may be protruded between the main body 110 and the drawer 130, and depending on whether a plurality of such trigger switches are pressed, the opening 111 is closed The open / close detection unit 170 may be configured to determine whether the open /

As another example, the opening / closing sensor 170 may be configured to include a photosensor installed in a receiving space inside the drawer unit 130. When the drawer unit 130 is inserted into the main body unit 110 and the opening 111 is closed, the inside of the drawer unit 130 is darkened, It is possible to confirm whether or not the drawer unit 130 properly closes the opening 111 by sensing that light is blocked in the receiving space.

In addition, the opening / closing sensor 170 may include any one of various sensors such as a contact sensor for detecting the contact between the two separated members, a proximity sensor for detecting the position when the object approaches, and the like As shown in FIG.

It is also possible that the above-described opening / closing detector 170 is used together. For example, in a dark room, whether or not the opening 111 is closed can not be sensed by only the photosensitive sensor alone, and in the case where there is an object having magnetism in the accommodation space inside the drawer unit 130, However, it is possible to overcome this problem by the combination of the various types of opening / closing sensors 170 as described above.

The controller 160 is provided to adjust the operation of the LED 140. The control unit 160 controls the operation of the LED 140 using the information about whether the opening 111 sensed by the opening / closing sensing unit 170 is closed, The operation of the LED 140 can be adjusted according to the ultraviolet ray irradiation amount. The control of the operation of the LED 140 of the controller 160 will be described later in detail.

Meanwhile, the UV sterilizing apparatus 100 of the present embodiment may further include an indicator lamp 180.

The indicator 180 is provided to be exposed to the outside of the main body 110 or the drawer 130 to indicate whether the LED 140 is lit or not and the operation of the indicator 180 is controlled by the controller 160.

According to the present embodiment, the controller 160 controls the lighting of the display lamp 180 according to whether the ultraviolet ray detector 150 detects ultraviolet rays.

That is, when the ultraviolet ray is irradiated to the device 1 to be sterilized and the ultraviolet ray is irradiated to the sterilizing device 1 accommodated in the accommodation space and the accommodation space, The controller 150 controls the operation of the indicator 180 so that the indicator 180 is turned on so that the LED 140 is turned on.

The user can easily grasp that the ultraviolet light is irradiated through the LED 140 by the operation of the display light 180 thus formed. Therefore, even if the ultraviolet light is irradiated through the LED 140, It is possible to prevent the user from being exposed to the ultraviolet rays without recognizing it because of the characteristic of ultraviolet rays.

In addition, the UV sterilizing apparatus 100 of the present embodiment may further include a timer 190.

The timer 190 is installed to be exposed to the outside of the main body 110 or the drawer 130 so that the user can input the lighting time of the LED 140. [

The timer 190 may be provided in the form of a dial or button for directly inputting time by the user or may be provided in the form of a button classified according to the type of the disinfection target device 1, The sterilizing device 1 may be provided with a time required for sterilizing the sterilization target device 1 by pressing the appropriate button.

The control unit 160 controls the LED 140 so that the lighting time of the LED 140 is controlled according to the time input through the timer 190, (140).

In addition, the UV sterilizing apparatus 100 of the present embodiment may further include an operation unit 195.

The operation unit 195 may be exposed to the outside of the main body 110 or the drawer unit 130 so that the user can operate the same as the timer 190. The operation unit 195 may be installed in the UV sterilizing apparatus 100, For example, the operation of turning on / off the UV sterilizing apparatus 100, turning on / off the LED 140, adjusting the ultraviolet irradiation amount, testing the components such as the LED 140, And an operation button for instructing the operation of the display device.

FIG. 4 is a view showing an example of using a UV sterilizing apparatus according to an embodiment of the present invention, and FIGS. 5 and 6 are diagrams illustrating a UV sterilizing apparatus according to an embodiment of the present invention, FIGS. 7 and 8 are graphs showing inactivation levels of Staphylococcus aureus according to UV irradiation time and irradiation amount of the UV sterilizing apparatus according to an embodiment of the present invention. FIG.

Hereinafter, the operation and effects of the UV sterilizing apparatus according to the present embodiment will be described with reference to FIGS. 1 to 8. FIG.

1 and 2, the UV sterilizing apparatus 100 according to the present embodiment can be installed in a built-in type of furniture 1 such as a kitchen furniture, a drawer, a cabinet, The device 100 itself may be installed to be used as furniture.

3 and 4, the UV sterilizing apparatus 100 installed in this way is provided with a disinfection target device 1, for example, a cutting board, A small device such as an earphone, a nail clipper, a toy, or a cellular phone is inserted into the main body 110 while the drawer 130 is inserted into the main body 110, 1), and the operation for sterilizing the UV sterilizing apparatus 100 is controlled by the control unit 160. [0052]

The operation of the UV sterilizing apparatus 100 for performing the sterilizing action on the accommodated device 1 to be sterilized contained in the accommodating space can be performed by a timer 190 or an operating unit provided outside the main body 110 or the drawer 130, (195). ≪ / RTI >

For example, when the user designates the lighting time of the LED 140 through the timer 190 and inputs an operation signal, the operation signal thus input is transmitted to the controller 160, and the controller 160 receives the input operation signal The operation control of the LED 140 is started.

At this time, the opening / closing detection unit 170 senses whether the opening 111 is closed and transmits a signal related to the opening / closing detection unit 170 to the control unit 160. The control unit 160 controls the opening / That is, whether or not the LED 140 is turned on, based on information about whether or not the drawer unit 130 is inserted.

The control unit 150 controls the operation of the LED 140 so that the LED 140 is turned on and controls the operation of the LED unit 140 so that the drawer unit 130 is turned on, The control unit 150 controls the operation of the LED 140 so that the LED 140 is not turned on.

The LED 140 is controlled to be turned on only when the drawer unit 130 is properly inserted into the main body 110 as described above so that the ineffective operation of the UV sterilizer 100 is not performed , It is possible to lower the risk of a safety accident and to prevent the ultraviolet ray irradiated by the LED 140 from flowing out and adversely affecting the human body in advance.

When the LED 140 is turned on by the operation control of the control unit 160 as described above, the ultraviolet rays are irradiated toward the sterilizing object device 1 accommodated in the accommodation space.

At this time, the LED 140 emits ultraviolet rays having strong sterilizing characteristics, for example, ultraviolet rays having a peak wavelength within 270 to 280 nm, more preferably ultraviolet rays having a peak wavelength at 275 nm. By such ultraviolet rays, The sterilization is performed on the substrate 1.

The operation of the opening and closing detector 170 continues while the LED 140 is being operated and if it is confirmed that the drawer unit 130 is not inserted into the main body 110 in this process, 140 may be turned off and ultraviolet irradiation may be interrupted.

The lighting of the LED 140 may be turned on or off depending on whether the lighting time set by the timer 190 has elapsed or not.

That is, according to the UV sterilizing apparatus 100 according to the present embodiment, when the drawer unit 130 is inserted into the main body 110 and the accommodation space is closed inside the main body 110, the timer 190 Or when an operating signal through the operation unit 195 is input and the ultraviolet light is irradiated and the LED 140 is turned on and the ultraviolet rays are out of the unstable state in the state of being lit or when the set lighting time has elapsed, The LED 140 is automatically turned off so that the LED 140 is turned off and whether or not the LED 140 is turned on and the ultraviolet ray is irradiated through the LED 140 can be confirmed by turning on the indicator 180. [

The ultraviolet ray detection unit 150 detects the ultraviolet ray in the receiving space inside the drawer unit 130 where the ultraviolet ray irradiation is performed, The operation of the LED 180 can be controlled while the operation of the LED 140 can be verified.

The control unit 160 may control the operation of the indicator light 180 so that the indicator light 180 is turned on when the ultraviolet light sensing unit 150 detects that the ultraviolet light is irradiated, The LED 140 may be turned on or off according to information about whether the ultraviolet ray is detected by the ultraviolet ray sensing unit 150 in the process of controlling the operation of the LED 140 so that the LED 140 is turned off, 140) is turned on or off.

The UV sterilizing apparatus 100 according to the present embodiment can further improve the operation efficiency of the apparatus by irradiating ultraviolet rays only when the safety conditions provided in multiple are satisfied as described above, The risk of ultraviolet ray leakage can be effectively lowered.

As another example, the UV sterilizing apparatus 100 according to the present embodiment may be operated so that sterilization is performed on the subject device 1 based on the total amount of the ultraviolet irradiation amount, not the ultraviolet irradiation time.

The operation of the UV sterilizing apparatus 100 for performing the sterilizing action of the disinfected object device 1 contained in the accommodation space is performed by operating the operation unit 195 to set the irradiation amount of the ultraviolet rays, Can be initiated by input.

When the operation of the UV sterilizer 100 is started, the LED 140 is turned on to emit ultraviolet rays toward the sterilizing target device 1 accommodated in the accommodation space, and the ultraviolet rays irradiated in this way irradiate the sterilizing target device 1 So that the sterilization is performed.

In this process, the ultraviolet ray sensing unit 150 senses ultraviolet rays irradiated to the accommodation space, measures the ultraviolet ray, and transmits the information to the controller 160.

The control unit 160 controls the ultraviolet ray irradiation amount value (hereinafter, referred to as "measured value") measured by the ultraviolet ray sensing unit 150 to a predetermined set value, (Hereinafter, referred to as "set value"), and controls the operation of the LED 140 so that the lighting of the LED 140 is maintained until the measured value reaches the set value. As a result, ultraviolet rays as much as the set value are irradiated to the accommodation space, and the sterilization object device 1 is sterilized.

In general, the germicidal effect obtained by irradiation with ultraviolet light is closely related to the dose of ultraviolet rays. That is, it is difficult to know how much sterilizing effect can be obtained only by adjusting the irradiation time of ultraviolet rays without considering the intensity of ultraviolet rays. On the other hand, it is difficult to know the degree of sterilizing effect only by controlling intensity of ultraviolet rays.

Considering these points, the UV sterilizing apparatus 100 of this embodiment adjusts the irradiation amount of the ultraviolet rays so as to irradiate ultraviolet rays as much as the irradiation amount necessary for the germicidal effect to be obtained, and performs sterilization on the sterilization object apparatus 1 .

In other words, the UV sterilizing apparatus 100 of the present embodiment is configured such that the ultraviolet rays irradiated to the object device 1 accommodated in the accommodation space and the accommodation space while the ultraviolet rays are irradiated to the object 1 to be sterilized contained in the accommodation space and the accommodation space By controlling the ultraviolet ray irradiation amount by controlling the lighting of the LED 140 by comparing the measured value with the set value by sensing and measuring the ultraviolet ray detector 150, It is possible to irradiate the sterilizing object device 1 with ultraviolet rays as much as necessary.

For example, if the ultraviolet ray irradiation amount is set so that ultraviolet rays of 5 mJ / cm 2 are irradiated to the accommodation space by the operation of the user's operating unit 195, the LEDs are irradiated until the accumulated amount of ultraviolet rays irradiated to the accommodation space becomes 5 mJ / And the ultraviolet ray detection unit 150 can measure the ultraviolet ray irradiation amount.

The UV sterilizing apparatus 100 of the present embodiment, which is capable of sterilizing the sterilizing object device 1 in this manner, can adjust the ultraviolet irradiation amount as much as necessary for the germicidal effect to be obtained, On the other hand, it is possible to prevent an excessive amount of ultraviolet rays from being irradiated to the sterilizing object device 1, thereby reducing unnecessary power consumption and the risk of a safety accident.

On the other hand, the ultraviolet rays emitted from the LED 140 are irradiated toward the sterilizing target device 1 accommodated in the accommodation space, thereby causing the sterilizing action to occur on the surface of the sterilizing target device 1.

According to this embodiment, a plurality of LEDs 140 are installed so that ultraviolet rays can be radiated all over the entire area of the device 1 to be sterilized, and the ultraviolet rays irradiated from the LED 140 are irradiated to the reflecting portion 135 Sterilization object device 1 accommodated in the accommodation space and the accommodation space so that the irradiation area of the ultraviolet light is concentrated toward the sterilization target device 1 housed in the accommodation space, So that the action can take place actively.

The sterilizing effect of the UV sterilizer 100 as described above will be described below. It is assumed that the UV sterilizer 100 of the present embodiment is used for about 15 minutes The sterilization object device 1 is irradiated with ultraviolet light of about 5 mJ / cm 2 during the process, and the sterilization object device 1 remains on the surface of the sterilization target device 1 It can be confirmed that sterilization of most of Escherichia coli was performed (see FIGS. 5 and 6).

Further, in the case of Staphylococcus aureus, when about 20 minutes have elapsed from the time of ultraviolet irradiation to the device 1 to be sterilized using the portable multi-function sterilizing apparatus 100 of the present embodiment, inactivation of Staphylococcus aureus 99.9%. During this process, ultraviolet rays of about 7 mJ / cm 2 are irradiated to the device 1 for sterilization to sterilize most of Staphylococcus aureus remaining on the surface of the sterilization target device 1 (See FIGS. 7 and 8).

FIG. 9 is a cross-sectional view showing another example of the UV sterilizing apparatus according to an embodiment of the present invention, and FIG. 10 is a view showing an example of use of the UV sterilizing apparatus shown in FIG.

Referring to Figs. 9 and 10, the UV sterilizing apparatus 100 may be provided in a form further including a shelf 130a.

The shelf 130a is installed in the accommodation space so as to be spaced apart from the bottom surface of the drawer part 130. [ As an example, the shelf 130a may be formed as a grill having a plurality of through holes. As another example, the shelf 130a may be formed in the form of a plate of a PMMA material having a high transmittance of ultraviolet rays.

When the shelf 130a thus formed is installed in the accommodation space, sterilization of the device 1 to be sterilized can be performed in a state in which the device 1 to be sterilized is placed on the shelf 130a.

When ultraviolet rays are irradiated toward the accommodation space in a state that the device 1 to be sterilized is placed on the shelf 130a, the sterilizing object device 1 is not only irradiated with the sterilization object device 1, Ultraviolet rays can reach the bottom surface of the sterilizing device 1, so that the sterilizing effect on the device 1 to be sterilized can be further improved.

3 and 4, the UV sterilizing apparatus 100 of the present embodiment can further provide various additional functions in addition to the sterilizing function for the sterilization target device 1 as described above.

As an example, the UV sterilizer 100 of the present embodiment can grasp the replacement timing of the LED 140 and provide information to the user.

The control unit 160 may turn on the LED 140 during the set time set for the test while the UV sterilizer 100 is not being used and may be turned on by the ultraviolet sensor 150 during the lighting time of the LED 140 It is possible to determine whether or not the LED 140 needs to be replaced by comparing the measured value of the measured ultraviolet ray dose with the comparison target value.

At this time, the comparison target value is illustrated as the minimum value of the ultraviolet irradiation amount to be provided by the LED 140 in order to provide a normal sterilizing effect in the process of lighting the LED 140 during the set time set for the test.

That is, when the ultraviolet radiation amount provided by the LED 140 to be tested is lower than the comparison target value as a result of lighting the LED 140 for the test, the control unit 160 determines that replacement of the LED 140 And the information thus determined can be provided to the user through a display (not shown) provided in the UV sterilizing apparatus 100, a notification (not shown), and the like.

As another example, the UV sterilizing apparatus 100 of this embodiment may provide a function of comparing and detecting the measurement sensitivity of the ultraviolet ray sensing unit 150.

A plurality of ultraviolet ray detection units 150 are installed at positions spaced apart from each other in the receiving space inside the drawer unit 130 and the control unit 160 is used for the test while the UV sterilization apparatus 100 is not in use The LED 140 can be turned on.

The control unit 160 compares measured values of the ultraviolet ray irradiation amount measured by the plurality of ultraviolet ray sensing units 150 while the LED 140 is turned on and irradiates the ultraviolet ray, It is possible to acquire the information about the measurement sensitivity of the light source 150.

That is, the control unit 160 compares the measured values of the respective ultraviolet ray detecting units 150 with respect to the ultraviolet ray having the same irradiation amount, and acquires information on the measured sensitivity of the respective ultraviolet ray detecting units 150 .

The control unit 160 may correct the measurement values obtained by the ultraviolet ray sensing units 150 using the acquired information to improve the measurement reliability of the ultraviolet ray irradiation amount using the ultraviolet ray sensing unit 150 Thus, it is possible to further improve the accuracy of ultraviolet dose adjustment.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Accordingly, the true scope of protection of the present invention should be defined by the following claims.

100: UV sterilizer
110:
111: opening
120: Le Mans
130: Drawer part
135:
140: LED
150: ultraviolet ray detection unit
160:
170:
180: Indicator light
190: Timer
195:

Claims (19)

A main body installed in the furniture and having an opening formed at one side thereof;
A rail portion provided inside the body portion to form a movement path in a back and forth direction extending from the opening toward the back surface of the body portion;
A housing accommodating space for housing a device to be sterilized is movably coupled to the rail and is detachably installed in the main body through the opening, A drawer part for exposing the accommodating space to the outside of the opening;
An LED installed inside the main body and illuminated to emit ultraviolet rays toward the accommodation space;
An ultraviolet ray sensing unit for sensing and measuring ultraviolet rays irradiated to the accommodation space; And
And a control unit for controlling the operation of the LED according to the ultraviolet ray irradiation amount detected by the ultraviolet ray detecting unit.
The method according to claim 1,
Wherein the control unit controls the operation of the LED so that the lighting of the LED is maintained until the ultraviolet radiation amount measured by the ultraviolet ray sensing unit reaches a predetermined set value.
The method according to claim 1,
Further comprising: an indicator lamp which is installed to be exposed to the outside of the main body or the drawer unit and which displays whether the LED is lit or not.
The method of claim 3,
Wherein the control unit controls the lighting of the indicator according to whether the ultraviolet ray detection unit detects ultraviolet radiation.
The method according to claim 1,
Further comprising an opening / closing sensor for detecting whether the opening is opened or closed;
Wherein the control unit controls the operation of the LED according to whether the opening sensed by the opening / closing sensing unit is opened or closed.
6. The method of claim 5,
Wherein the opening / closing detector includes a trigger switch installed on the main body and operated to be pressed by interference with the drawer unit.
6. The method of claim 5,
Further comprising a magnet member installed in the drawer portion;
Wherein the opening / closing sensor comprises a sensor installed in the main body and sensing a magnetic flux of the magnet member.
The method according to claim 1,
Wherein the drawer portion is formed in a housing shape in which the accommodating space is opened upward;
Wherein the LED is installed on an upper surface inside the main body facing the bottom surface of the drawer portion.
9. The method of claim 8,
Further comprising a reflector for reflecting the ultraviolet light irradiated from the LED to the accommodation space side.
10. The method of claim 9,
Wherein the reflector is formed by coating aluminum on an upper surface of the main body and at least a part of an inner surface of a drawer portion surrounding the accommodation space.
9. The method of claim 8,
Further comprising a shelf installed in the accommodation space to be spaced apart from a bottom surface of the drawer part.
12. The method of claim 11,
Wherein the shelf is formed in a grill shape having a plurality of through holes.
12. The method of claim 11,
Wherein the shelf is formed in the form of a plate made of PMMA.
The method according to claim 1,
Wherein the accommodation space is provided with a plurality of the ultraviolet ray sensing units spaced apart from each other.
15. The method of claim 14,
Wherein the control unit compares the measured values of the ultraviolet ray irradiation amounts measured by the plurality of ultraviolet ray detecting units with each other and acquires information on the sensitivity of each of the ultraviolet ray detecting units based on the measured values.
The method according to claim 1,
The control unit may illuminate the LED during a set time for testing and compare a measured value of the ultraviolet radiation dose measured by the ultraviolet ray sensing unit with the comparison target value during the lighting time of the LED to determine whether the LED needs to be replaced The UV sterilization apparatus comprising:
The method according to claim 1,
Further comprising a timer for inputting a lighting time of the LED;
Wherein the control unit controls the operation of the LED so that the lighting time of the LED is adjusted according to the time input through the timer.
The method according to claim 1,
Wherein said LED emits an ultraviolet ray having a peak wavelength within 200 to 280 nm.
The method according to claim 1,
And is installed in the form of a buit-in to the furniture.

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