KR20220063930A - An ultraviolet sterilizer for kitchen - Google Patents

Abstract

The present invention relates to a UV sterilizer for a kitchen located above a sink. The UV sterilizer for a kitchen compriese: a housing structure formed elongated and having an internal space; a sterilization LED module located in the internal space of the housing structure, emitting UVA light downward to sterilize the sink, and having a plurality of UV LEDs for emitting UVA rays installed therein; an LED module for lighting located in parallel to the sterilization LED module in the inner space of the housing structure, illuminating the sink, and having a plurality of LEDs emitting white light mounted therein; a printed circuit board located in the inner space of the housing structure and in which the sterilization LED module and a control unit involved in the operation of the sterilization LED module are mounted; a floodlight plate covering a lower part of the housing structure to transmit UVA light or white light when the sterilization LED module is turned on or when the LED module for lighting is turned on; a sensor part having a first sensing unit and a second sensing unit for sensing a human body, and transmitting a detection result signal to the control part when a human body is detected by at least one of the first sensing unit and the second sensing unit. The present invention is to minimize human exposure to UV rays.

Description

UV sterilizer for kitchen {AN ULTRAVIOLET STERILIZER FOR KITCHEN}

The present invention relates to a kitchen UV sterilizer, and more particularly, to a kitchen UV sterilizer capable of UV sterilizing a sink and its surroundings using UVA light.

Products using UV LED are used to sterilize various bacteria that grow in various kitchen appliances including sinks, dish drying racks, tableware, knives, cutting boards, and the like. One example of a conventional UV sterilizer for kitchen use is the Republic of Korea Utility Model Registration 20-0429527 (October 17, 2006) (hereinafter referred to as Prior Art 1), Korean Patent Publication No. 10-2019-0111727 (October 2, 2019) (hereinafter referred to as Prior Art 2), etc. has been disclosed. The prior art 1 discloses a UV sterilizer for kitchen that is formed in a rectangular parallelepiped shape so as to sterilize and sterilize kitchen utensils using UV rays and can be configured as a built-in type in a sink, and in the prior art 2, UV LEDs Disclosed is a knife sterilization block that can sterilize kitchen knives using It is not a device that can directly sterilize an area.

The wavelength band of ultraviolet rays is generally about 100nm to 400nm, and generally the 315nm to 400nm band is subdivided into UVA, the 280nm to 315nm band is UVB, and the 100nm to 280nm band is subdivided into UVC, and in some cases it is subdivided slightly differently. The wavelength band of visible light is approximately 380 nm to 800 nm. Among ultraviolet rays, patent UVC has strong cell destruction and sterilization power, so special attention is required in its use in an environment where the human body is exposed to UVC. In addition, even in the case of UVA, when the skin is exposed, it penetrates the epidermis layer and reaches the dermis, promoting skin aging, making spots and freckles, and is known to cause skin cancer if the exposure time is prolonged. Therefore, even in considering a sterilization device using UVA, it is necessary to prevent or minimize exposure to the human body.

An object of the present invention is to provide a kitchen UV sterilizer capable of minimizing human exposure to UV rays in sterilizing a sink and its surrounding area using UVA band UV rays among UV rays.

An object of the present invention is to provide a kitchen UV sterilizer including both a lighting function and a sterilization function.

UV sterilizer for kitchen according to an aspect of the present invention for solving the above problems, as a UV sterilizer for kitchen located above the sink, a housing structure formed to be elongated and having an inner space, located in the inner space of the housing structure and UVA light LED module for sterilization that sterilizes the sink by emitting light downwards - A plurality of UV LEDs emitting UVA light are mounted on the LED module for sterilization - Parallel to the LED module for sterilization in the inner space of the housing structure is located, an LED module for lighting for illuminating the sink - A plurality of LEDs emitting white light are mounted on the LED module for lighting - Located in the inner space of the housing structure, the LED module for sterilization and the LED module for lighting A printed circuit board on which a control unit involved in the operation of a control unit is mounted, a floodlight plate for transmitting UVA light or white light when the LED module for sterilization is turned on or when the LED module for lighting is turned on by covering the lower part of the housing structure and a sensor unit having a first sensing unit and a second sensing unit for detecting a human body. When at least one of the first sensing unit and the second sensing unit detects a human body, a detection result signal is transmitted to the control unit. It is characterized in that it contains -.

According to an embodiment, the UV sterilizer for kitchen has an adhesive portion located on the upper surface of the housing structure so as to be attachable to the lower portion of the sink upper cabinet located above the sink.

According to an embodiment, the UV sterilizer for kitchen has an automatic mode that is started according to the application of power to the UV sterilizer for the kitchen and a manual mode that is started when the user presses a push button, and the automatic mode is for power application. Immediately after the primary human body approaches, the control unit turns on the lighting LED module depending on the primary human body detection by the sensor part, and the primary human body by the sensor part in a state in which the lighting LED module is turned on When the detection is resolved, the control unit turns off the LED module for lighting and turns on the LED module for sterilization,

In a state in which the LED module for lighting is turned off and the LED module for sterilization is turned on, a preset sterilization duration - the preset sterilization duration is counted from when the LED module for sterilization is turned on - When elapsed, the control The unit turns off the LED module for sterilization depending on the end of the preset sterilization duration, the LED module for lighting is turned off and the LED module for sterilization is turned on, and the preset sterilization duration has not elapsed In, when there is a secondary human body detection by the sensor unit, the control unit turns on the LED module for lighting and turns off the LED module for sterilization depending on the secondary human body detection by the sensor unit, and for the lighting When the LED module is turned on and the LED module for sterilization is turned off, and the secondary human body detection by the sensor unit is resolved in a state where the preset sterilization duration has not elapsed, the control unit is the LED module for lighting is turned off and the LED module for sterilization is turned on, and when the preset sterilization duration elapses in a state in which the LED module for lighting is turned off and the LED module for sterilization is turned on, the control unit controls the preset sterilization duration Turns off the LED module for sterilization depending on the end of a preset pause time in a state in which the LED module for sterilization is turned off - The preset pause time depends on the end of the preset sterilization duration to the control unit Counted from the point in time when the LED module for sterilization is turned off by - When this elapses, the control unit is in a mode to turn on the LED module for sterilization depending on the end of the preset idle time.

According to an embodiment, the UV sterilizer for kitchen has an automatic mode that is started according to the application of power to the UV sterilizer for the kitchen and a manual mode that is started when a user presses a push button, and wherein the manual mode, the user pushes the After a predetermined delay time has elapsed depending on pressing a button, the LED module for lighting is turned off and the LED module for sterilization is turned on, and the LED module for lighting is turned off and the LED module for sterilization is turned on. Time - the preset sterilization duration is counted from when the LED module for sterilization is turned on - when this elapses, the control unit turns off the LED module for sterilization depending on the end of the preset sterilization duration, When the LED module for lighting is turned off and the LED module for sterilization is turned on and the preset sterilization duration has not elapsed, when the sensor unit detects a human body, depending on the detection of the human body by the sensor unit The control unit turns on the LED module for lighting and turns off the LED module for sterilization, the LED module for lighting is turned on and the LED module for sterilization is turned off, and the preset sterilization duration is not elapsed. When the detection of the human body by the sensor unit is eliminated, the control unit turns off the LED module for lighting and turns on the LED module for sterilization, the LED module for lighting is turned off and the LED module for sterilization is turned on in advance When the set sterilization duration has elapsed, the control unit is a mode in which the sterilization is terminated by turning off the LED module for sterilization depending on the end of the preset sterilization duration.

According to an embodiment, the UV sterilizer for kitchen has an automatic mode that is started according to the application of power to the UV sterilizer for the kitchen and a manual mode that is started when the user presses a push button, and the automatic mode is for power application. Immediately after the primary human body approaches, the control unit turns on the lighting LED module depending on the primary human body detection by the sensor part, and the primary human body by the sensor part in a state in which the lighting LED module is turned on When the detection is resolved, the control unit turns off the LED module for lighting and turns on the LED module for sterilization, in a state in which the LED module for lighting is turned off and the LED module for sterilization is turned on, preset sterilization duration - The preset sterilization duration is counted from when the LED module for sterilization is turned on - when this elapses, the control unit turns off the LED module for sterilization depending on the end of the preset sterilization duration, and for the lighting When the LED module is turned off and the LED module for sterilization is on and the preset sterilization duration has not elapsed, if there is a secondary human body detection by the sensor unit, the secondary human body by the sensor unit Depending on the detection, the control unit turns on the LED module for lighting and turns off the LED module for sterilization, the LED module for lighting is turned on and the LED module for sterilization is turned off, and the preset sterilization duration has not elapsed. When the secondary human body detection by the sensor unit is eliminated in a non-existent state, the control unit turns off the LED module for lighting and turns on the LED module for sterilization, the LED module for lighting turns off and the LED module for sterilization When the preset sterilization duration has elapsed in this lit state, the control unit turns off the LED module for sterilization depending on the end of the preset sterilization duration, and in the state in which the LED module for sterilization is turned off mi Re-set idle time - The preset idle time is counted from the time when the LED module for sterilization by the control unit is turned off by the control unit depending on the end of the preset sterilization duration - When the elapsed time, the control unit is It is a mode in which the LED module for sterilization is turned on depending on the end of a preset idle time, and in the manual mode, the LED module for lighting is turned off after a predetermined delay time depending on the user pressing the push button is turned off and the sterilization In a state in which the LED module for sterilization is turned on, the LED module for lighting is turned off and the LED module for sterilization is turned on, preset sterilization duration - The preset sterilization duration is counted from when the LED module for sterilization is turned on - When this elapses, the control unit turns off the LED module for sterilization depending on the end of the preset sterilization duration, the LED module for lighting is turned off and the LED module for sterilization is turned on, and the preset sterilization When a human body is detected by the sensor unit in a state in which the duration has not elapsed, the control unit turns on the LED module for lighting and turns off the LED module for sterilization depending on the detection of the human body by the sensor unit, When the LED module for lighting is turned on and the LED module for sterilization is turned off, and the human body detection by the sensor unit is resolved in a state where the preset sterilization duration has not elapsed, the control unit turns off the LED module for lighting When the preset sterilization duration has elapsed in a state in which the LED module for sterilization is turned on and the LED module for sterilization is turned off and the LED module for sterilization is turned on, the control unit terminates the preset sterilization duration It is a mode that is ended by turning off the LED module for sterilization depending on is redeemed

The present invention has the effect of providing both a lighting function and a sterilization function, as well as minimizing exposure of the human body to UV rays in sterilizing a sink and its surrounding area using UV rays by providing a UV sterilizer for the kitchen.

1 is a perspective view of a kitchen UV sterilizer according to an embodiment of the present invention;
2 is an exploded view of a kitchen UV sterilizer according to an embodiment of the present invention;
3 is a side cross-sectional view of a kitchen UV sterilizer according to an embodiment of the present invention;
4 is a flowchart for explaining the automatic mode (MODE 1) of the UV sterilizer for kitchen according to an embodiment of the present invention,
5 is a flowchart for explaining the manual mode (MODE 2) of the UV sterilizer for kitchen according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, a kitchen UV sterilizer according to a preferred embodiment of the present invention will be described. It should be noted that the accompanying drawings and the embodiments described with reference to them are simplified and illustrated for the purpose of helping those of ordinary skill in the art to understand the present invention.

1 is a perspective view of a kitchen UV sterilizer according to an embodiment of the present invention, FIG. 2 is an exploded view of the kitchen UV sterilizer according to an embodiment of the present invention, and FIG. 3 is a kitchen UV sterilizer according to an embodiment of the present invention. is a cross-sectional side view of, Figure 4 is a flow chart for explaining the automatic mode (MODE 1) of the UV sterilizer for the kitchen according to an embodiment of the present invention, Figure 5 is a manual UV sterilizer for the kitchen according to an embodiment of the present invention It is a flowchart for explaining the mode (MODE 2). In particular, FIG. 2 shows the left part by disassembling the UV sterilizer for kitchen use according to an embodiment of the present invention for better understanding, and the right part is shown in a combined state.

First, referring to FIGS. 1 to 3 , the UV sterilizer for kitchen 100 of the present invention includes a housing structure 110 , an LED module for sterilization 120 , an LED module for lighting 130 , a printed circuit board 140 , and light projection. It includes a plate 150 , and a sensor unit 160 . In addition, the kitchen UV sterilizer 100 includes fixing and protection structures 191 , 192 , and 193 (hereafter referred to as 190 collectively). In addition, although not shown in the drawings, a three-phase slide switch for selecting any one of power off, automatic mode, and manual mode is further provided. The manual mode is switched by selecting the three-phase slide switch as the manual mode and then pressing the push button 170, and if necessary, it can be selected to operate in the manual mode immediately, or it can be switched to the manual mode while the automatic mode is in progress.

The housing structure 110 is elongated and has an internal space. An LED module for sterilization 120 , an LED module for lighting 130 , and a printed circuit board 140 are positioned in the inner space. The inner space is elongated in the longitudinal direction and formed in a slot type so that the elongated LED module 120 for sterilization and the LED module 130 for lighting can be smoothly inserted. The LED module 120 for sterilization is inserted into the first slot 111 of the housing structure 110 , and the LED module 130 for lighting is inserted into the second slot 112 . The upper surface of the housing structure 110 has an adhesive part (not shown) so as to be attachable to the lower part of the sink upper cabinet located on the upper part of the sink. The adhesive part is located on the upper surface 113 of the housing structure 110 . The adhesive portion may be formed by applying an adhesive to a partial region or the entire region on the upper surface 113 of the housing structure 110 , and a partial region on the upper surface 113 of the housing structure 110 in a double-sided tape type. Alternatively, it may be formed by bonding to the entire area. For the fixing of the housing structure 110 , that is, for the smooth fixing of the entire kitchen UV sterilizer 100 of the present invention, the adhesive portion is preferably formed evenly on the upper surface 113 of the housing structure 110 . In addition, through the upper part 191 of the fixing and protection structure 190, it can be further fixed to the upper cabinet of the sink with a piece for wood.

The LED module 120 for sterilization is a component for sterilizing the sink by emitting UVA light downwardly located in the inner space of the housing structure 110 . The meaning of "sterilizing the sink" in the present specification is defined to broadly include the sterilization of the sides, including the sink constituting the sink, and dish drying racks or gas stoves placed on the sides. The LED module 120 for sterilization is inserted into the first slot 111 in the inner space of the housing structure 110 , and a plurality of UV LEDs 121 emitting UVA light are mounted. The number of UV LEDs 121 may be 24, but may vary depending on the length of the UV sterilizer 100 for kitchen use of the present invention.

The UVA light irradiation angle (θ1, FIG. 3) of the LED module 120 for sterilization is approximately 120 degrees. Here, the wavelength band of UVA light is a wavelength band including a part of a short wavelength region of visible light, and generally a wavelength band of 315 nm to 410 nm is used, and preferably, a wavelength band of 405 nm is used. Compared to UVC, in the case of UVA, the sterilization target area must be irradiated for approximately 1 hour to see the sterilization effect, so it is preferable that the preset sterilization duration in the present invention is approximately 1 hour (60 minutes) as described later . On the other hand, even in the case of UVA, since exposure to the human body should not be carried out for a long time, as will be described later to prevent human exposure, the LED module 120 for sterilization by the action between the sensor unit 160 and the control unit 142 is appropriately turns on or off

The LED module for lighting 130 is inserted into the second slot 112 in the housing structure 110 so as to be positioned parallel to the LED module 120 for sterilization in the inner space of the housing structure 110 . A plurality of LEDs 131 emitting white light are mounted on the LED module for lighting. Each of the LEDs 131 emitting white light may be a single LED package composed of red, green, and blue LED chips or an LED package implemented with a combination of a blue LED chip and a phosphor. The number of LEDs 131 in the LED module 130 for lighting may be 24, but may also vary according to the length of the UV sterilizer 100 for kitchen use according to the present invention.

The printed circuit board 140 is located in the inner space of the housing structure 110 , and the control unit 142 involved in the operation of the LED module 120 for sterilization and the LED module 130 for lighting is mounted. Accordingly, the printed circuit board 140 is electrically connected to the LED module 120 for sterilization, the LED module 130 for lighting, and the sensor unit 160 side. The control unit 141 receives the detection result signal according to the human body detection result by the sensor unit 160, and accordingly turns on or off the LED module for sterilization 120 and the LED module 130 for lighting appropriately. The control unit 141 includes a timer for setting such as the sterilization duration and rest time. An organic action between the sensor unit 160 and the control unit related to the lighting of the LED module for sterilization 120 and the LED module 130 for lighting will be described later with reference to FIGS. 4 and 5 .

The floodlight plate 150 is a structure for covering the lower portion of the housing structure 110 , and is formed of a transparent or translucent material, and when the LED module for sterilization 120 or the LED module 130 for lighting is turned on, UVA light or white It transmits light and acts as a sterilizer or lighting for the sink. In addition, since the floodlight plate 150 is a part directly facing the sink, there is no gap in the downward direction so that water does not enter the inner space of the housing structure 110 in preparation for splashing water from the sink side during washing dishes or cleaning. It is preferable that the structure is coupled to the housing structure 110 so as not to be disturbed.

The sensor unit 160 includes a first sensing unit S1 and a second sensing unit S2 for detecting a human body. The first sensing unit S1 may be a passive infrared sensor (PIR sensor), and the second sensing unit S2 may be an ultrasonic sensor. The sensor unit 160 is composed of two units as described above, and according to an OR operation (that is, by generating a detection result signal when one of the two sides senses the human body), the detection result to the control unit 142 side By transmitting a signal, an operation error of the sensor unit 160 does not occur even when either one of the two fails. The sensor unit 160 may be appropriately angled to detect the movement of the human body in a certain section (acute angle range, θ2), and may be positioned inside the fixed and protective structure 190 . In the fixing and protecting structure 190 , the lower part 192 is formed of a transparent material so that sensing by the sensor unit 160 is smooth. A push button 170 is disposed on the front part 192 of the fixing and protective structure 190 so that the user can switch to the manual mode if necessary.

In addition, in the kitchen UV sterilizer 100 of the present invention, both sides have a pair of side covers 180a and 180b that cover both sides so that both sides are not exposed while the floodlight plate 150 is coupled to the housing structure 110 . may include Each of the side covers 180a and 180b may be provided with a power supply port H1 through which a plug for power supply can be inserted. In some cases, the power supply outlet may be on the left side or the right side, so it is preferable that the power supply port H1 is formed in both of the side covers 180a and 180b.

Next, with reference to FIGS. 4 and 5, the automatic mode (MODE 1) and the manual mode (MODE 2) of the UV sterilizer 100 for kitchen use of the present invention will be described in detail. As mentioned above, when power off is selected from the three-phase slide switch that can select any one of power off, automatic mode, and manual mode, the UV sterilizer 100 for kitchen of the present invention does not perform any sterilization or lighting functions. It is a non-working state. When the automatic mode is selected in the 3-phase slide switch, the operation starts in the automatic mode (MODE 1), and when the user presses the push button 170 in the automatic mode (MODE 1), it immediately enters the manual mode (MODE 2). After the manual mode (MODE 2) is finished, it immediately returns to the automatic mode (MODE 1). In addition, when the manual mode is selected in the three-phase slide switch, the operation is started in the manual mode (MODE 2) by pressing the push button 170 .

Referring to FIG. 4 together with FIGS. 1 to 3 , the automatic mode (MODE 1) is a mode that is automatically started according to the application of power, and the application of power here converts the three-phase slide switch to the automatic mode (MODE 1). means action.

As a result of the user approaching the UV sterilizer 100 for the kitchen to apply power, the sensor unit 160 detects the human body (user) (ST1). For convenience, the approach of the user toward the UV sterilizer 100 for the kitchen for power application is referred to as the primary human approach.

Depending on this primary human body detection by the sensor unit 160, the control unit 142 lights the LED module 130 for lighting (ST2) so that the user can see the sink or around the sink.

In this way, in a state in which the LED module 130 for lighting is turned on, the sensor unit 160 continuously senses the human body, and transmits a detection result signal accordingly to the control unit 142 side. The control unit 142 determines whether or not human body detection has been resolved based on the detection result signal (ST3). Human body detection by the sensor unit 160 may be performed, for example, in a cycle of several seconds or a cycle of several tens of seconds. As a result of the sensor unit 160 continuously detecting the human body, when the detection result signal is received from the control unit 142 (NO branch in ST3), the LED module 130 for lighting continuously turns on the lighting state (WLED ON) keep

Otherwise, when the primary human body detection by the sensor unit 160 is resolved as a result of the detection (YES branched in ST3), that is, when the sensor unit 160 no longer detects the human body, the control unit 142 is used for lighting By turning off the LED module 130 and turning on the LED module 120 for sterilization, UVA sterilization for the sink is started (ST4, WLED OFF/UVA ON)). The sterilization duration is counted from this point in time, that is, when the LED module 120 for sterilization is turned on. The sterilization duration may be set through a timer in the control unit 142 to 1 hour (60 minutes) as in FIG. 4 .

In a state in which the LED module for lighting 130 is turned off and the LED module for sterilization 120 is turned on, the control unit 142 continuously checks whether a preset sterilization duration (60 minutes) has elapsed (ST5), and accordingly Accordingly, when all of the preset sterilization duration (60 minutes) has elapsed, the control unit 142 turns off the LED module 120 for sterilization depending on the end of the preset sterilization duration (60 minutes) (ST6, UVA OFF). Here, that the control unit 142 depends on the end of the preset sterilization duration (60 minutes) means that the sterilization LED module ( 120) means to generate a signal to control the lights off. It is used as having this meaning also in the subsequent rest time.

Otherwise, in a state in which the LED module for lighting 130 is turned off and the LED module for sterilization 120 is turned on, the preset sterilization duration (60 minutes) does not elapse, human body detection by the sensor unit 160 If there is (this is called secondary human body detection for convenience) (Yes branch of ST7), depending on this secondary human body detection by the sensor unit 160, the control unit 142 turns on the LED module 130 for lighting and Turn off the LED module for sterilization (ST8) (ST8, WLED ON/UVA OFF).

In a state in which the LED module 130 for lighting is turned on, the LED module for sterilization 120 is turned off, and the preset sterilization duration (60 minutes) has not elapsed, the secondary human body detection by the sensor unit 160 is resolved. In case (YES branch of ST9), the control unit 142 turns off the LED module 130 for lighting and turns on the LED module 120 for sterilization (ST10, WLED OFF/UVA ON).

When the LED module for lighting 130 is turned off and the preset sterilization duration (60 minutes) has all elapsed while the LED module for sterilization 120 is turned on, that is, secondary from the preset total sterilization duration (60 minutes) When all the remaining time after the detection of the human body has elapsed (YES branch of ST11), the control unit 142 turns off the LED module for sterilization depending on the end of the preset sterilization duration (60 minutes) (ST13, UVA OFF).

On the other hand, human body detection by the sensor unit 160 in the case where the preset sterilization duration (60 minutes) has not elapsed while the LED module 130 for lighting is turned off and the LED module 120 for sterilization is turned on. If there is (for convenience, this is called tertiary human body detection) (No branch of ST11 and Yes branch of ST12), the control unit 142 turns on the LED module 130 for lighting and turns off the LED module 120 for sterilization. (ST8). In this case, steps after ST8 are the same as in the previous case.

When the preset idle time has elapsed in the state in which the LED module for sterilization 120 is turned off (YES branch of ST14), the process returns to step ST4 and starts UVA sterilization. Here, the preset pause time is counted from the time when the LED module 120 for sterilization is turned off by the control unit 142 depending on the end of the preset sterilization duration, and the pause time can be set to about 8 hours. . That is, when several hours have elapsed since the previous sterilization, bacteria can be generated and reproduced in the sink again, so that the sterilization operation is repeatedly performed. That is, when the preset pause time has elapsed, the LED module for sterilization is turned on depending on the end of the preset pause time (ST4). At this time, the LED module for lighting maintains the turned off state.

On the other hand, when the preset idle time has not elapsed (NO branch of ST14), the sensing unit 160 detects a human body (for convenience, this is called a quaternary human body detection) (YES branch of ST15), the control unit ( 142 turns on the LED module 130 for lighting depending on the quaternary human body detection by the sensing unit 160 (ST16, WLED ON). At this time, the LED module 120 for sterilization maintains the light-off state. When the quaternary human body detection by the sensing unit 160 is resolved (YES branch of ST17), the control unit 142 turns off the LED module for lighting (ST18, WLED OFF).

Next, referring to Figure 5 together with Figures 1 to 3, the manual mode (MODE 2) is a mode that is started by the user pressing the push button 170, the three-phase slide switch (not shown) is a manual mode ( It is the operation mode in the state converted to MODE 2). Of course, there is also a conversion from the automatic mode (MODE 1) to the manual mode (MODE 2), but this will be described later, and only the operation in the state in which the three-phase slide switch is switched to the manual mode (MODE 2) will be described. do.

When the three-phase slide switch is switched to the manual mode (MOED 2) and the push button 170 is pressed (ST21, PUSH), a predetermined delay time (eg, 60 seconds) depending on the user's push button operation After lapse, the LED module 130 for lighting is turned off and the LED module 120 for sterilization is turned on (ST22, WLED OFF/UVA ON).

When the LED module for lighting 130 is turned off and the LED module for sterilization 120 is turned on, when the preset sterilization duration (60 minutes) has elapsed (YES branch of ST 23), the control unit 142 is preset Depending on the end of the set sterilization duration, the LED module for sterilization 120 is turned off (ST24, UVA OFF). Here, the sterilization duration (60 minutes) is counted from when the LED module 120 for sterilization is turned on as in the previous automatic mode (MODE 1).

On the other hand, when the LED module for lighting 130 is turned off, the LED module for sterilization 120 is turned on, and the sensor unit 160 detects a human body in a state where the preset sterilization duration has not elapsed (NO branch of ST23) and ST25 branch), the control unit 142 turns on the LED module 130 for lighting and turns off the LED module 120 for sterilization depending on the human body detection by the sensor unit 160 (ST26, WLED ON/ UVA OFF).

Subsequently, in a state in which the LED module 130 for lighting is turned on, the LED module for sterilization 120 is turned off, and the preset sterilization duration (60 minutes) has not elapsed, the detection of the human body by the sensor unit 160 is eliminated. If it is (YES branch of ST27), the control unit 142 turns off the LED module 130 for lighting and turns on the LED module 120 for sterilization (ST28, WLED OFF/UVA ON). On the other hand, when the detection is not resolved (NO branch of ST27), the LED module for lighting 130 is turned on and the LED module for sterilization 120 continuously maintains the turned off state (ST26).

When the LED module for lighting 130 is turned off and the preset sterilization duration (60 minutes) has elapsed while the LED module for sterilization 120 is turned on, that is, when all of the remaining time has elapsed (YES branch of ST29) , the control unit 142 turns off the LED module 130 for sterilization depending on the end of the preset sterilization duration (ST30, UVA OFF), whereby the manual mode (MODE 2) is terminated (ST32). When the manual mode (MODE 2) is started by the user pressing the push button 170 while the automatic mode (MODE 1) is being performed, after the end step (ST32), the process returns to the step ST14, which will be described below. It will be described with reference to FIGS. 4 and 5 together.

Finally, referring to FIGS. 4 and 5 together with FIGS. 1 to 3 , the view in the case of switching to the manual mode (MODE 2) started by the user pressing the push button while the automatic mode (MODE 1) is being performed A kitchen UV sterilizer of the invention will be described.

Since the description of each of the automatic mode (MODE 1) and the manual mode (MODE 2) is substantially the same as that described with reference to FIGS. 4 and 5, respectively, a redundant description will be omitted.

When the user wants to switch to the manual mode (MODE 2) by pressing the push button 170 if necessary while the automatic mode (MODE 1) is in progress, the secondary human body detection in the automatic mode (MODE 1), the tertiary human body It may be any one of detection and quaternary human body detection, but when the push button 170 is pressed while performing the automatic mode (MODE 1), the manual mode (MODE 2) has priority, so the automatic mode (MODE 1) proceeds When the user presses the push button 170, it immediately switches to the manual mode (MODE 2), the manual mode (MODE 2) as shown in FIG. 5 proceeds, and the automatic mode after the end step (ST32) of the manual mode (MODE 2) It is switched to ST14 step of (MODE 1). That is, after the preset sterilization duration (60 minutes) has expired, the LED module for sterilization 120 is turned off (step ST30) and the automatic mode (MODE 1) is terminated, and in this state, a preset idle time (8 hours) If this has elapsed (YES branch of ST14), return to ST4 and start UVA sterilization.

In the above, the configuration and operation of the UV sterilizer 100 for kitchen according to embodiments of the present invention have been described, but it should be noted that the scope of the present invention is defined by the following claims.

100: UV sterilizer for kitchen of the present invention
110: no housing structure
120: LED module for sterilization
130: LED module for lighting
140: printed circuit board
150: floodlight
160: sensor unit
170: push button

Claims (5)

As a kitchen UV sterilizer located above the sink,
a housing structure formed to be elongated and having an interior space;
LED module for sterilization located in the inner space of the housing structure and emitting UVA light downward to sterilize the sink, wherein a plurality of UV LEDs emitting UVA light are mounted on the LED module for sterilization;
an LED module for lighting positioned parallel to the LED module for sterilization in the inner space of the housing structure and for illuminating the sink, a plurality of LEDs emitting white light are mounted on the LED module for lighting;
a printed circuit board located in the inner space of the housing structure, on which a control unit involved in the operation of the LED module for sterilization and the LED module for lighting is mounted;
a floodlight covering the lower part of the housing structure to transmit UVA light or white light when the LED module for sterilization is turned on or when the LED module for lighting is turned on; and
A sensor unit having a first sensing unit and a second sensing unit for detecting a human body. When at least one of the first sensing unit and the second sensing unit detects a human body, a detection result signal is transmitted to the control unit. ; Kitchen UV sterilizer, characterized in that it contains.
The method according to claim 1,
The UV sterilizer for the kitchen, characterized in that it has an adhesive portion located on the upper surface of the housing structure so as to be attachable to the lower part of the upper cabinet of the sink located above the sink, the UV sterilizer for the kitchen.
The method according to claim 1, The UV sterilizer for the kitchen has an automatic mode that is started according to the application of power to the UV sterilizer for the kitchen and a manual mode that is started when the user presses a push button,
The automatic mode is
Immediately after the approach of the primary human body for power application, the control unit turns on the LED module for lighting depending on the primary human body detection by the sensor unit,
When the primary human body detection by the sensor unit is canceled while the LED module for lighting is turned on, the control unit turns off the LED module for lighting and turns on the LED module for sterilization,
In a state in which the LED module for lighting is turned off and the LED module for sterilization is turned on, a preset sterilization duration - the preset sterilization duration is counted from when the LED module for sterilization is turned on - When elapsed, the control The unit turns off the LED module for sterilization depending on the end of the preset sterilization duration,
When the LED module for lighting is turned off and the LED module for sterilization is turned on and the preset sterilization duration has not elapsed, if there is a secondary human body detection by the sensor unit, the 2 Depending on the vehicle body detection, the control unit turns on the LED module for lighting and turns off the LED module for sterilization,
When the LED module for lighting is turned on, the LED module for sterilization is turned off, and the second human body detection by the sensor unit is resolved in a state in which the preset sterilization duration has not elapsed, the control unit is configured for the lighting Turn off the LED module and turn on the LED module for sterilization,
When the LED module for lighting is turned off and the preset sterilization duration has elapsed while the LED module for sterilization is turned on, the control unit turns off the LED module for sterilization depending on the end of the preset sterilization duration make it,
A preset pause time in a state in which the LED module for sterilization is turned off - The preset pause time is counted from the time when the LED module for sterilization is turned off by the control unit depending on the end of the preset sterilization duration - When this elapses, the control unit is a UV sterilizer for kitchen, characterized in that it is in a mode to turn on the LED module for sterilization depending on the end of the preset idle time.
The method according to claim 1, The UV sterilizer for the kitchen has an automatic mode that is started according to the application of power to the UV sterilizer for the kitchen and a manual mode that is started when the user presses a push button,
The manual mode is
Depending on the user pressing the push button, after a predetermined delay time elapses, the LED module for lighting is turned off and the LED module for sterilization is turned on,
In a state in which the LED module for lighting is turned off and the LED module for sterilization is turned on, a preset sterilization duration - the preset sterilization duration is counted from when the LED module for sterilization is turned on - When elapsed, the control The unit turns off the LED module for sterilization depending on the end of the preset sterilization duration,
When the LED module for lighting is turned off and the LED module for sterilization is turned on and the preset sterilization duration has not elapsed, when the sensor unit detects a human body, depending on the detection of the human body by the sensor unit The control unit turns on the LED module for lighting and turns off the LED module for sterilization,
When the LED module for lighting is turned on, the LED module for sterilization is turned off, and the human body detection by the sensor unit is resolved in a state where the preset sterilization duration has not elapsed, the control unit controls the LED module for lighting Turn off and turn on the LED module for sterilization,
When the LED module for lighting is turned off and the preset sterilization duration has elapsed while the LED module for sterilization is turned on, the control unit turns off the LED module for sterilization depending on the end of the preset sterilization duration UV sterilizer for kitchen, characterized in that the mode is terminated by
The method according to claim 1, The UV sterilizer for the kitchen has an automatic mode that is started according to the application of power to the UV sterilizer for the kitchen and a manual mode that is started when the user presses a push button,
The automatic mode is
Immediately after the approach of the primary human body for power application, the control unit turns on the LED module for lighting depending on the primary human body detection by the sensor unit,
When the primary human body detection by the sensor unit is canceled while the LED module for lighting is turned on, the control unit turns off the LED module for lighting and turns on the LED module for sterilization,
In a state in which the LED module for lighting is turned off and the LED module for sterilization is turned on, a preset sterilization duration - the preset sterilization duration is counted from when the LED module for sterilization is turned on - When elapsed, the control The unit turns off the LED module for sterilization depending on the end of the preset sterilization duration,
When the LED module for lighting is turned off and the LED module for sterilization is turned on and the preset sterilization duration has not elapsed, if there is a secondary human body detection by the sensor unit, the 2 Depending on the vehicle body detection, the control unit turns on the LED module for lighting and turns off the LED module for sterilization,
When the LED module for lighting is turned on, the LED module for sterilization is turned off, and the second human body detection by the sensor unit is resolved in a state in which the preset sterilization duration has not elapsed, the control unit is configured for the lighting Turn off the LED module and turn on the LED module for sterilization,
When the LED module for lighting is turned off and the preset sterilization duration has elapsed while the LED module for sterilization is turned on, the control unit turns off the LED module for sterilization depending on the end of the preset sterilization duration make it,
A preset pause time in a state in which the LED module for sterilization is turned off - The preset pause time is counted from the point in time when the LED module for sterilization by the control unit is turned off depending on the end of the preset sterilization duration - When this has elapsed, the control unit is a mode to turn on the LED module for sterilization depending on the end of the preset idle time,
The manual mode is
Depending on the user pressing the push button, after a predetermined delay time elapses, the LED module for lighting is turned off and the LED module for sterilization is turned on,
In a state in which the LED module for lighting is turned off and the LED module for sterilization is turned on, a preset sterilization duration - the preset sterilization duration is counted from when the LED module for sterilization is turned on - When the elapsed time, the control The unit turns off the LED module for sterilization depending on the end of the preset sterilization duration,
When the LED module for lighting is turned off and the LED module for sterilization is turned on and the preset sterilization duration has not elapsed, when the sensor unit detects a human body, depending on the human body detection by the sensor unit The control unit turns on the LED module for lighting and turns off the LED module for sterilization,
When the LED module for lighting is turned on, the LED module for sterilization is turned off, and the human body detection by the sensor unit is resolved in a state where the preset sterilization duration has not elapsed, the control unit controls the LED module for lighting Turn off and turn on the LED module for sterilization,
When the preset sterilization duration has elapsed while the LED module for lighting is turned off and the LED module for sterilization is turned on, the control unit turns off the LED module for sterilization depending on the end of the preset sterilization duration This mode is terminated by
UV sterilizer for kitchen, characterized in that when the user presses the push button during the automatic mode, it is switched to the manual mode, and is switched to the automatic mode after the manual mode is finished.

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