KR102093720B1 - Light apparatus for led with sterilization - Google Patents

Abstract

The present invention relates to an LED lighting device with a sterilization function, which comprises: a setting part; a communication part; a control part; an LED chip for lighting; an LED chip for sterilization; a sensor part; and a control unit, thereby capable of hygienic cooking through a sterilization effect against food poisoning bacteria, and providing a wide range of the sterilization effect.

Description

LED lighting device with sterilization function {LIGHT APPARATUS FOR LED WITH STERILIZATION}

The present invention relates to an LED lighting device, and to an LED lighting device having a sterilizing function.

In general, lighting lamps are used for the purpose of brightening a dark space indoors and outdoors. Fluorescent lamp is the most commonly used lighting lamp. It is a lighting equipment that is used for lighting by converting ultraviolet rays generated by the discharge of mercury into visible light by placing mercury and argon in a vacuum-coated glass tube.

However, fluorescent lamps consume less power than incandescent lamps, but have a shorter lifespan, so there is a problem that the replacement cycle is rather short. Moreover, for the initial discharge of fluorescent lamps, ballasts for applying high voltage are applied. In contrast to the power consumption and lifespan of these fluorescent lamps, LEDs (light-emitting diodes), which emphasize long-life and low-power emission, and eco-friendliness due to compact size and manufacturing, are emerging as main lighting lamps.

In the case of mass production according to the expansion of the scope of application, the LED lighting lamp will be able to be installed at a low price, and since it boasts a typical life of 100,000 hours, the initial installation cost is somewhat high, but it will save power and reduce the cost of use according to the usage time. Is expected.

Meanwhile, the LED may be classified into an infrared LED that emits infrared light, a visible light LED that emits visible light, and an ultraviolet LED that emits ultraviolet light according to light emission characteristics. Among them, UV (Ultra Violet Rays, UV) LEDs have been confirmed to have an effect of removing bacteria having DNA or RNA, and are applied as a means for sterilization in various fields, and are used for indoor purification in conjunction with lighting. Examples used are also presented.

As an example of a lighting device used for the purpose of indoor purification in conjunction with lighting as described above, in Korean Patent Publication No. 10-2018-0054183, an object to be sterilized is irradiated from an upper portion of an irradiated table, but for a substrate and general lighting mounted on the substrate It includes a lighting unit including a plurality of lighting LEDs and a plurality of sterilizing LEDs mounted on a substrate and performing a sterilization function by irradiating a wavelength of a visible light region. Here, the sterilizing LED is irradiated with visible light in a region of 400 to 500 nm.

As described above, conventionally, visible light in a wide wavelength range of 400 to 500 nm is used. However, the use of such a wide range of visible light also includes a wavelength band that has a low sterilization effect, and thus, more UV LED needles should be inserted to improve sterilization function. However, this is a problem that can cause an increase in cost.

However, in the case of sterilization currently being used, a wavelength of 400 nm or less harmful to the human body is used, and as it is harmful to the human body, it is used in a closed, limited space, and thus there is a problem that a wide range of sterilization is impossible.

Republic of Korea Patent Publication No. 10-2018-0054183

The technical problem of the present invention is to be implemented in three modes of general lighting, sterilization lighting, general lighting + sterilization lighting to promote hygiene and remove odor, and to allow both general lighting and sterilization lighting to be used simultaneously during cooking. will be.

In addition, if the movement of the person is detected through the sensor unit at a predetermined time, and the movement of the person is not detected, the periodic sterilization effect is provided by irradiating the sterilization light for a predetermined time.

In addition, it is an object of the present invention to provide a sterilization light that is harmless to the human body by sterilization through an LED chip providing a wavelength of 405 nm or 461 nm.

In order to achieve the above object, the present invention is a plurality of LED chips for illumination that emit white light, a plurality of LED chips for sterilization that generate light having any one or more wavelengths in a wavelength band of 405 nm and 461 nm, which detects a user's movement Sensor unit, LED chip for lighting, LED chip for sterilization and substrate on which the sensor unit is mounted, control unit for controlling on-off of LED chip, and light emission intensity of LED chip for lighting and wavelength intensity of the LED chip for sterilization It includes an adjustment unit.

According to an embodiment of the present invention, it is implemented in the form of three modes of general lighting, sterilization lighting, general lighting + sterilization lighting, and by using both general lighting and sterilization lighting during cooking, sanitary cooking is performed through sterilizing effect on food poisoning bacteria. It is possible to do a wide range of sterilization.

In addition, there is an effect that can provide sterilization at a wavelength harmless to the human body.

In addition, by periodically detecting the movement of a person at a predetermined time and irradiating the sterilization light, there is an effect that can prevent the occurrence of harmful bacteria in the space where the lighting is installed.

In addition, different modes can be provided for each zone, such as a lighting mode, a sterilization mode, and a lighting + sterilization mode, thereby providing an effective sterilization effect and lighting.

1 is a view showing a system of an LED lighting device having a sterilizing function according to an embodiment of the present invention.
2 is a view showing a substrate case according to an embodiment of the present invention.
3 is a view showing an LED lighting device having a sterilizing function installed in a kitchen according to an embodiment of the present invention.
4 is a view showing a state in which the LED lighting device having a sterilizing function according to an embodiment of the present invention operates in a lighting mode.
5 is a view showing a state in which the LED lighting device having a sterilization function according to an embodiment of the present invention operates in a sterilization mode.
6 is a view showing a state in which the LED lighting device having a sterilizing function according to an embodiment of the present invention operates in a lighting + sterilization mode.
7 is an exemplary view showing a substrate on which an LED chip is arranged according to an embodiment of the present invention.
8 is a view showing a system in which lighting is controlled by the sensor unit at a set time according to an embodiment of the present invention.
9 is a view showing that the illumination of different modes of each area is irradiated according to an embodiment of the present invention.
10 is a view showing an LED lighting device having a sterilizing function according to a further embodiment of the present invention.
11 is a view showing a system in which lighting is controlled according to a pollution degree measurement according to a further embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily practice. However, the present invention may be implemented in various different forms, and is not limited to the embodiments described below or illustrated in the drawings. In addition, in order to clearly describe the present invention in the drawings, parts irrelevant to the present invention are omitted, and the same or similar reference numerals in the drawings indicate the same or similar components.

The objects and effects of the present invention may be naturally understood or more apparent by the following description, and the objects and effects of the present invention are not limited only by the following description.

The awareness that hygiene is not good for products that are frequently touched by hand, such as smartphones, keyboards, and mice, is rapidly increasing, and the demand for hygiene products such as alcohol cleaners is rapidly increasing. Sterilizers, bottle sterilizers, etc. are sold in various product types. At this time, ozone and ultraviolet rays, which are widely used in sterilization devices for sterilization, have excellent sterilization effects, but should be handled with care because they are harmful to the human body.

The sterilizable LED lighting device of the present invention irradiates the object to be sterilized from the top (ceiling) of the irradiated table so that efficient sterilization is performed without harming the human body, but for a plurality of lights for general lighting mounted on the substrate and the substrate It is mounted on the LED and the substrate, and it has a plurality of sterilizing LEDs that perform sterilization functions by irradiating the wavelengths of the 405nm and 461nm ranges, which have excellent sterilizing effects on major food poisoning bacteria. Based on these technologies, sterilizers that are applied across industries such as medical, catering and manufacturing industries and use UV LEDs are high value-added products and can occupy the market in the future.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a system of an LED lighting device having a sterilizing function according to an embodiment of the present invention.

Referring to Figure 1, the LED lighting device having a sterilizing function of the present invention, LED chip 610 for lighting, LED chip 620 for sterilization, substrate 400, control unit 300, control unit 700, sensor unit 500, a setting unit 100 and a communication unit 200. In addition, the substrate case 410 and a spray unit for disinfecting the disinfectant may be further included.

The lighting LED chip 610 is a plurality of LED chips that emit white light. In detail, the LED chip 610 for lighting is preferably provided as a general LED chip to provide light required for general operation.

The sterilizing LED chip 620 is a plurality of LED chips that generate light having any one or more wavelengths in the 405nm and 461nm wavelength bands. In particular, according to the applicant's experiments, the wavelength of 405nm or 461nm directly affects E. coli, Salmonella, and O157 bacteria representing food poisoning, such as general home kitchens, restaurants, food manufacturing places and storage places, school lunches, and pet shops. It is efficient and at the same time is a wavelength of visible light that is harmless to the human body.

Ultraviolet rays having a wavelength of less than 400 nm have a short wavelength, and thus, when directly irradiated to the skin of the human body, there is a risk of skin cancer, and wavelengths exceeding 461 nm are long-wavelength bands, so that even when irradiated with ultraviolet rays, a sterilizing effect cannot be sufficiently obtained. In addition, the ultraviolet rays in the wavelength band exceeding 405 nm and less than 461 nm are visible rays in a wide range of wavelengths.The use of such wide range of visible light also includes wavelength bands that have poor sterilization efficacy. Should be inserted, which can cause cost increase problems.

In order to solve these problems, E.coli (E. coli), which represents UV poisoning of 405nm and 461nm wavelength bands as food poisoning bacteria, S.aureus (Staphylococcus aureus), and V. parahaemolyticus (S enteritis vibrio), etc. It was found that the bactericidal effect on the bacteria was high. Therefore, in order to maximize the sterilization efficiency, the sterilizing LED chip 620 according to an embodiment of the present invention is preferably implemented as an LED chip generating a wavelength of 405 nm or 461 nm. Specifically, the sterilizing LED chip 620 may be implemented in the following three ways. One can be implemented with an LED chip that generates a wavelength of 405 nm. The other can be implemented as an LED chip generating a 461nm wavelength. Another one can be implemented with LED chips that generate both 405nm and 461nm wavelengths.

The substrate 400 is a substrate on which the LED chip 610 for illumination and the LED chip 620 for sterilization are mounted. In detail, the substrate 400 is preferably provided as a PCB (Printed Circuit Board) substrate. A PCB is a substrate that forms a conductor circuit on the surface or inside of an insulating substrate to connect components based on a circuit design. It serves as a base for arranging and supporting electronic components as well as electrically connecting components to each other. The substrate 400 is implemented as a metal-made PCB substrate 400, and is preferably provided to be resistant to external shock and also resistant to contamination. Here, various kinds of metal materials such as aluminum may be used as the type of metal, and the type is not limited. Cost reduction effect by applying a metal PCB in which the general kitchen lighting white 50-60W class lighting LED chip 610 and 405nm and 461nm main sterilization LED chip 620 are inserted in a 1: 1 ratio And the heat dissipation problem of the LED substrate. In addition, the substrate 400 may be further equipped with a sensor unit 500 to be described later.

Hereinafter, the substrate case 410 will be described with reference to FIG. 2. 2 is a view showing a substrate case according to an embodiment of the present invention.

As illustrated in FIG. 2, the substrate case 410 has a housing shape in which the substrate 400 is mounted, and the bottom is provided with a transparent plate so that the LED chip 310 for illumination and the LED chip 320 for sterilization use a transparent plate. Through this, illumination and sterilization can be performed toward the lower side. In addition, it is possible to enable the movement of a person to be detected by the sensor unit 500.

Hereinafter, an LED lighting device having a sterilization function operated by a control unit will be described with reference to FIGS. 3 to 6. 3 is a view showing an LED lighting device having a sterilizing function installed in a kitchen according to an embodiment of the present invention, and FIG. 4 is an LED lighting device having a sterilizing function according to an embodiment of the present invention, operating in a lighting mode Figure 5 is a view showing a state in which the LED lighting device having a sterilization function according to an embodiment of the present invention operates in a sterilization mode, and FIG. 6 shows a sterilization function according to an embodiment of the present invention It is a diagram showing the state that the LED lighting device has operation in the lighting + sterilization mode.

First, the adjustment unit 700 may include a dimming adjustment unit and a wavelength conversion unit. In detail, the light intensity or brightness of the LED chip 610 for illumination can be controlled by the dimming control unit, and the wavelength intensity of the LED chip 620 for sterilization can be adjusted through the wavelength converter. In more detail, each dimming control unit and wavelength conversion unit are provided with separate user manipulation interfaces such as dials, buttons, and touch panels, so that the brightness of the lighting LED chip 610 and the sterilization LED chip 620 are provided through the user manipulation interface. The wavelength intensity of can be adjusted by receiving each input from the user. In addition, the control unit 700 may be operated with a user manipulation interface provided therein as described above, but may also be operated through communication of a separate user smart device. At this time, the smart device may be provided by laying a separate APP on the user's mobile phone or tablet, or may be a mobile operation interface equipped with a button such as a remote control.

The control unit 300 is configured to control the LED chip 610 for lighting and the LED chip 620 for sterilization, respectively. First, the control unit 300 may receive power from a switched mode power supply (SMPS). SMPS is a power supply that uses a switch control method that converts AC power to DC power using a switching transistor, etc., which regulates the on-off time ratio of semiconductor switch elements to stabilize the output. Device. The control unit 300 may include an operation unit such as a main controller unit (MCU) to control the LED lighting device according to a value input from the control unit 700 or the setting unit 100. In detail, the control unit 300 can control the emission intensity of the LED chip 610 for illumination and the wavelength intensity of the LED chip 620 for sterilization by recognizing the value input by the control unit 700 to be described later. It is also possible to control the mode of the LED lighting device having the sterilizing function of the invention.

Specifically, referring to Figure 3, the LED lighting device having a sterilizing function of the present invention is provided with both a lighting LED chip 610 and a sterilizing LED chip 620, located on the upper ceiling of the kitchen or application place, lighting, It can operate in three modes: sterilization, lighting + sterilization. Hereinafter, each mode will be described in more detail with reference to FIGS. 4 to 6.

1) Lighting mode

As illustrated in FIG. 4, only white lighting, which is general lighting, can be used in the ON state. That is, only the LED chip 610 for lighting is driven and the LED chip 620 for sterilization is turned off, so that it can be used only for bright lighting.

2) Sterilization mode

As shown in Fig. 5, only ultraviolet sterilization lighting can be used in the ON state. In particular, it can be used for sterilization and mood of food poisoning bacteria by exposing a person to a space that is not in space for a long time.

3) Lighting + sterilization mode

As shown in FIG. 6, the lighting LED chip 610 and the sterilizing LED chip 620 are simultaneously used in the ON state, so that both general lighting and ultraviolet sterilizing lighting can be used at the same time.

Specifically, only the lighting LED chip 610 for general lighting may be used, only the sterilizing LED chip 620 for sterilization may be used, or the functions for general lighting and sterilization may be used simultaneously. That is, the lighting is used in a wide variety of ways, especially in food production spaces (home, restaurants, food companies, etc.) and storage areas, so that it can be implemented in three forms: general lighting, sterilization lighting, and general + sterilization lighting without harmful to the human body. Can be. UV-LED in the wavelength band of 405nm and 461nm enhances the sterilizing effect against bacteria such as E.coli (E. coli), which represents food poisoning bacteria, S.aureus (Staphylococcus aureus), and V. parahaemolyticus (S enteritis vibrio), which are called hamburger disease. Can be. Therefore, the normal user's activity time can be used only as a general lighting, general lighting + sterilization lighting can be used simultaneously, and if only a sterilization mode is desired, only sterilization lighting can be used. In addition, due to the nature of visible light, the longer the exposure, the more the effect can be seen. When the user is not in the space, such as when sleeping or leaving work, only the sterilizing LED chip 620 can be turned on and irradiated. Additionally, in the home, only the sterilizing LED chip 620 may be used as a mood lamp, and in order to prevent glare for each person, the sterilizing LED chip 620 may also be adjusted by adding a dimming controller.

On the other hand, since the LED lighting device having the sterilization function of the present invention simultaneously performs the lighting function and the sterilization function, it is necessary to efficiently arrange the lighting LED chip 610 and the sterilization LED chip 620. Hereinafter, an efficient arrangement of the LED chip of the present invention will be described with reference to FIG. 7. 7 is an exemplary view showing a substrate on which an LED chip is arranged according to an embodiment of the present invention.

Referring to FIG. 7, a plurality of LED chips 620 for sterilization may be arranged side by side along the second column so as to be spaced apart at the same distance, and are spaced apart in parallel at the same predetermined distance in the right and left directions of the second column. The LED chips 610 for lighting may be arranged side by side on the first and third columns. Accordingly, the sterilizing LED chips 620 arranged on the second row generate ultraviolet light having a wavelength of 405 nm or 416 nm effective for sterilization, and the lighting LED chips 610 arranged in the first and third columns are white light. Can occur. Preferably, the sterilizing LED chips 620 disposed along the second row can be implemented such that the first sterilizing LED chip generating a 405 nm wavelength and the second sterilizing LED chip generating a 461 nm wavelength are alternately arranged. At this time, the control unit 300 may generate the wavelength intensity of the first sterilizing LED chip and the second sterilizing LED chip differently. Therefore, it is possible to maximize the sterilizing effect by stimulating by different wavelengths according to the state or type of the sterilizing object. The above-described embodiment is only one embodiment, and depending on the type or state of the object to be sterilized, the wavelength intensity of the first sterilizing LED chip is made larger than the wavelength of 461 nm, or, conversely, the wavelength intensity of the second sterilizing LED chip is more than the wavelength of 405 nm. You can also enlarge it.

Furthermore, the control unit 300 may generate and generate the wavelength intensity of the first sterilizing LED chip and the second sterilizing LED chip differently according to the type of the sterilizing object. This is to maximize the sterilization effect according to the object of sterilization of the new sugar type. For example, when the first sterilizing LED chip having a wavelength of 405 nm is generated as the first intensity, the wavelength intensity of the second sterilizing LED chip having the wavelength of 461 nm is generated at a second intensity greater than the first intensity, or Or, it can be generated in the third century, which is smaller than the first century. On the contrary, when the wavelength intensity of the second sterilizing LED chip having a wavelength of 461 nm is generated as the first intensity, the wavelength intensity of the first sterilizing LED chip having the wavelength of 405 nm is generated as the second intensity greater than the first intensity. It can be generated in the third century, which is smaller than the first century. On the other hand, in the case of the sterilizing LED chip 620 composed of a UV LED chip or the like, a processing error of ± 5 nm may occur due to reasons of the process itself. This is only a range of errors that can occur in any chip maker.

Hereinafter, the lighting control system according to the setting unit and the communication unit of the present invention will be described with reference to FIG. 8. 8 is a view showing a system in which lighting is controlled by the sensor unit at a set time according to an embodiment of the present invention.

Prior to the description of the setting unit 100 and the communication unit 200, the LED lighting device having the sterilizing function of the present invention may include the sensor unit 500 as described above. In detail, the sensor unit 500 may be provided on the above-described substrate 400, and is a sensor capable of detecting whether a user is in a space by detecting a user's movement. Accordingly, it is determined whether the user is in the space by detecting the motion of the sensor unit 500, and if the user is in the space, the current lighting state is maintained, and if the user is not in the space, the lighting can be arbitrarily controlled in a sterilization mode. Can be. Here, the sensor unit 500 may start detection by a separate compulsory operation instruction, or may start detection by setting a detection setting time by itself at an appropriate time according to a statistical value to be described later. Specifically, the sensor unit 500 may be any one of an infrared sensor, an ultrasonic sensor, or a thermal sensor, which is a sensor that detects human motion, and any sensor that can detect human motion may be used. Can be.

The setting unit 100 is configured to instruct the control unit 300 to operate the LED lighting device having a sterilizing function through the communication unit 200 by setting the operation detection time of the sensor unit 500 described above. In detail, the setting unit 100 is a step of determining whether a user is present through the sensor unit 500 and determining whether to start sterilization mode. The setting unit 100 may set the detection time by artificial setting of the user. In addition, even when there is no user's additional setting, the user's lighting usage time is determined by day and time, and the detection time can be automatically set based on the statistics. According to an embodiment, if the user's work time in a restaurant or a food factory is constant for each day of the week, when the user does not exist in the space, motion detection of the sensor unit 500 may be automatically started. Therefore, even if the user does not separately set the detection setting time, the motion detection of the sensor unit 500 may be started by the setting unit 100 by itself. At this time, the control unit 300 may maintain the current state of the lighting mode or start the sterilization mode according to whether the sensor unit 500 detects the operation. Here, the setting unit 100 may be a wired device connected to an LED lighting device having a sterilization function, but is preferably provided as a mobile smart device such as a mobile phone or a tablet for user convenience.

The communication unit 200 is configured to communicate and transmit a setting instruction of the setting unit 100 made of a user's smart device to the control unit 300.

Hereinafter, an automatic sterilization mode control method of an LED lighting device having a sterilization function according to the present invention will be described with reference to FIG. 8. First, when the detection setting time set by the user's input or statistics in the setting unit 100 is reached, motion detection of the sensor unit 500 starts. The detection of the operation of the sensor unit 500 may be detected for a predetermined first time, and the predetermined first time may be about 3 minutes to 10 minutes. Accordingly, when an operation is detected according to the detection result of the first time of the sensor unit 500, it is determined that the user exists in the space, and the mode of the user's currently set lighting device is maintained. Thereafter, when the next detection set time is reached, the sensor unit motion detection may be repeated. At this time, the detection setting time may be repeated according to a predetermined period. On the other hand, if a motion is not detected for a first time in the sensor unit motion detection result, the user may determine that it does not exist in the space, and start the sterilization mode of the lighting. At this time, the sterilization mode is a mode for sterilizing harmful bacteria in the space by turning ON only the sterilizing LED chip 620 as described above. At this time, the sterilization mode may be maintained for a predetermined second time. Here, the second time is an appropriate time for the sterilization to be completed, and is preferably made in about 10 to 30 minutes. If the specified second time is required, the sterilization mode may be terminated and all lights may be turned off.

Therefore, according to the above-described automatic sterilization mode control method, the user can maintain the sanitary state of the space by periodically sterilizing the space when the user does not exist, and can prevent the generation of harmful bacteria in advance. In addition, if the user does not exist in the space and the lighting is turned on and has been left for a long time due to going out or leaving work, it is possible to prevent unnecessary waste of electricity by detecting motion and turning off all lights at the same time after starting the sterilization mode. It has an effect.

Hereinafter, mode control for each zone will be described with reference to FIG. 9. 9 is a view showing that the illumination of different modes of each area is irradiated according to an embodiment of the present invention.

Referring to FIG. 9, the LED lighting device having one sterilization function may be controlled in different modes for each zone. In detail, the LED lighting device having the sterilization function of one embodiment may be divided into two or more zones, and controlled in separate modes from each other. That is, the LED lighting device having a sterilization function may be divided into two or more zones, and each zone may be controlled in different modes. For example, when the LED lighting device according to an embodiment is divided into four zones as shown in FIG. 9, after the user collects objects in the four zones that need to focus on sterilization at the same time as the operation, only the four zones are sterilized. Control, and control the rest of the zones in normal lighting mode to make more efficient use of lighting.

In addition, the LED lighting device having a sterilizing function of the present invention is provided with a separate injection portion at the edge of the lighting device, it is possible to periodically spray the pre-stored sterilizing agent. Particularly, when the user does not exist by the operation of the sensor unit 500, the sterilization effect of the space can be maximized by automatically disinfecting the disinfectant for disinfection from the injection unit in the middle of starting or in the middle of the sterilization mode in the automatically started sterilization mode.

Hereinafter, further embodiments of the present invention will be described in detail with reference to FIGS. 10 and 11. 10 is a view showing an LED lighting device having a sterilization function according to a further embodiment of the present invention, and FIG. 11 is a view showing a system in which lighting is controlled according to the pollution degree measurement according to a further embodiment of the present invention.

According to a further embodiment, the present invention may further include a pollution degree measurement sensor 800. In detail, the pollution degree measurement sensor 800 is a sensor for measuring the degree of air pollution in a space, and may be mounted on the substrate 400. In detail, the pollution level measurement sensor 800 may transmit a value to the control unit 300 whether or not a predetermined reference pollution level is exceeded or not by measuring a value of the pollution level. The control unit 300 receiving the measured result from the pollution measurement sensor 800 can be controlled by turning on or maintaining the current state of the LED chip 620 for sterilization. Hereinafter, it will be described in more detail with reference to FIG. 11.

Referring to FIG. 11, when the pollution measurement time set by the user's input or statistics in the above-described control unit 700 or the setting unit 100 is reached, the pollution degree measurement of the space is started by the pollution measurement sensor 800. The level of contamination can be measured by measuring the degree of contamination, and the measured value can be compared with a predetermined reference level of contamination to transmit to the controller 300 whether the reference level exceeds or does not exceed. At this time, if the reference contamination level is not exceeded, the current LED lighting device mode is maintained, and re-measurement may be started when the next contamination level measurement time is reached. That is, when the reference pollution level is not exceeded, the mode of the currently used lighting device can be maintained as it is, or if the current lighting devices are all OFF, the current state can be maintained. On the other hand, when the measured contamination level exceeds the reference contamination level, the control unit 300 may control to sterilize the space by turning on the sterilizing LED chip 620. At this time, the disinfecting part of the spraying part can also be sprayed to improve the sterilizing effect. In detail, when the reference contamination level is exceeded, the LED chip 620 for sterilization may be driven in an ON state in addition to the current lighting device mode. Specifically, if the current lighting device mode is the lighting mode, the lighting + sterilization mode can be switched, and if the current lighting device mode is all OFF, the lighting mode can be switched to the sterilization mode. That is, when the user is currently using the lighting device, it is possible to sterilize the space by additionally turning on the LED chip for sterilization while maintaining the current state so as not to affect the use. After sterilization of the LED chip 620 for sterilization is started, the ON state of the sterilization LED chip 620 may be maintained for a predetermined time, the third time. When a predetermined third time is required, the secondary pollution degree measurement of the space may be started by the pollution degree measurement sensor 800. Subsequently, when the second pollution level measurement is completed and the reference contamination level is still exceeded, the sterilization LED chip can be maintained in the ON state again. When the contamination level falls below the reference contamination level, the sterilization LED chip is turned OFF. You can quit. That is, when the second pollution degree measurement result exceeds the reference contamination level, repeating the step of driving the sterilization LED chip 620 to the ON state, and if it is below the reference contamination level, the sterilization LED chip 620 is turned OFF. State. At this time, when the LED chip 610 for lighting is turned on in the ON state, it is preferable that the LED chip 610 for lighting is maintained as it is.

According to a further specific embodiment, as described above, the sterilizing LED chip 620 includes a first sterilizing LED chip generating light at a wavelength of 405 nm and a second sterilizing LED chip generating light at a wavelength of 461 nm. The first sterilizing LED chip and the second sterilizing LED chip may be positioned to cross each other. Alternatively, the wavelength may be converted from the same sterilizing LED chip 620 to the first sterilizing LED chip or the second sterilizing LED chip under the control of the control unit, and may be driven in an ON state. According to a further embodiment, when the above-mentioned first pollution level measurement time reaches a value of the contamination level exceeding the predetermined reference pollution level, the sterilizing LED chip 620 driving for a predetermined third time is the first sterilization level. Only one of the LED chip or the second sterilizing LED chip can be driven. That is, the LED chip 620 for sterilization driven through the first contamination measurement can generate only light having a wavelength of either 405 nm or 461 nm. Subsequently, when the second pollution level measurement result is lower than the reference pollution level, it is determined that the light of the wavelength driven through the above-described first pollution level measurement was effective and memorized the sequence in a separate storage section, and then the contamination level of the next cycle If the contamination level exceeds the reference value during the measurement time, it is desirable to generate the light first. On the other hand, when the secondary pollution degree measurement result still exceeds the reference pollution level, it is preferable to generate a wavelength different from the wavelength of light generated from the sterilization LED chip 620 driven through the first pollution degree measurement. In detail, when the wavelength of light generated through the first contamination measurement is a 405 nm wavelength, the wavelength of light generated as a result of the second contamination measurement is preferably a wavelength of 461 nm. In more detail, if the first sterilization LED chip is driven for a predetermined third time through the first contamination measurement, the sterilization LED chip 620 driven as a result of the second contamination measurement is the second sterilization LED chip turned ON. It is preferably driven. When the second pollution degree measurement is completed for a predetermined third time, the effect of light of a corresponding wavelength can be measured through the third pollution degree measurement. At this time, if the measured contamination level is lower than the reference contamination level, remember that the sterilized LED chip 620 driven after the second contamination measurement was effective, and sterilized LED chip driven through the next cycle of contamination measurement ( In 620), the sterilized LED chip 620 driven after measuring the secondary pollution level may be first driven to the ON state. In detail, according to one embodiment, when the value of the contamination level measured in the first contamination level measurement exceeds a predetermined reference contamination level, the sterilization LED chip 620 generates light having a wavelength of 405 nm for a predetermined third time. If the first sterilization LED chip, and after the predetermined third time, the second pollution degree measurement result still exceeds the reference pollution level, the second sterilization LED chip generating light having a wavelength of 461 nm is driven to the ON state. After the second sterilization LED chip is driven, when the third pollution level measurement result indicates that the measured contamination level is lower than the predetermined reference contamination level, it is determined that the second sterilization LED chip with a wavelength of 461 nm was more effective. When driving the sterilizing LED chip 620 by measuring the contamination level of the cycle, it is preferable to first drive the second sterilizing LED chip to the ON state. If both the first sterilizing LED chip and the second sterilizing LED chip are ineffective, light of two kinds of wavelengths can be applied at the same time, and if there is no effect afterwards, measures such as adjusting by increasing the predetermined third time can be taken. have.

Therefore, according to the lighting control method according to the above-mentioned pollution degree measurement, by periodically measuring the degree of contamination of the space to further sterilize, it is possible to maintain the sanitary condition of the space, and to sterilize and disinfect harmful bacteria generated in the space at any time It has the effect.

The present invention has been described with reference to the preferred embodiment, but this is only an embodiment, and those skilled in the art may be capable of various modifications and equivalent other embodiments therefrom. Therefore, the scope of the present invention is not limited by the above-described embodiments and the accompanying drawings.

100: setting unit 200: communication unit
300: control unit 400: substrate
500: sensor unit 610: LED chip for lighting
620: LED chip for sterilization 700: Control unit
800: Pollution degree sensor

Claims (10)

A plurality of lighting LED chips 610 emitting light with white light;
A plurality of sterilizing LED chips 620 including a first sterilizing LED chip generating light of 405 nm wavelength and a second sterilizing LED chip generating light of 461 nm wavelength;
A sensor unit 500 that detects a user's movement;
A substrate 400 on which the lighting LED chip 610, a sterilizing LED chip 620, and a sensor unit 500 are mounted;
Lighting mode for driving ON / OFF of the LED chip 610 for lighting and the LED chip 620 for sterilization only in the ON state of the LED chip 610 for lighting, and only the LED chip 620 for sterilization A control unit 300 controlling the sterilization mode driven in the ON state, the lighting LED chip 610 and the sterilization LED chip 620 in one of the lighting + sterilization modes simultaneously driving in the ON state;
A dimming control unit that controls the light emission intensity or brightness of the lighting LED chip 610; And a wavelength converting unit that adjusts the wavelength intensity of the sterilizing LED chip 620;
A setting unit 100 consisting of a user's smart device that sets a motion detection time of the sensor unit 500; And
It includes; a communication unit 200 for transmitting the operation detection time set from the setting unit 100 to the control unit 300;
When the motion detection time is reached, the sensor unit 500 detects motion for a predetermined first time,
When an operation is detected by the sensor unit 500, the currently set lighting state is maintained,
If no motion is detected by the sensor unit 500, after performing a sterilization mode for a predetermined second time, all lights are turned off,
The substrate 400 further comprises a pollution measurement sensor 800 mounted on,
When it is time to measure the pollution degree, the pollution degree measurement sensor 800 measures the value of the pollution degree in the space,
If the measured value of the pollution level does not exceed a predetermined reference pollution level, the current lighting device mode is maintained,
When the measured value of the contamination level exceeds the pre-specified reference contamination level, after driving the first sterilizing LED chip in the ON state for a predetermined third time, the contamination level measurement sensor 800 measures the secondary contamination level. And
Repeating the step of driving the second sterilizing LED chip 620 to the ON state when the second pollution level measurement result exceeds the reference contamination level,
If it is below the reference pollution level, the LED chip 620 for sterilization is terminated in an OFF state,
When the measured level of contamination after the operation of the second sterilizing LED chip is lowered below the predetermined reference pollution level, when the sterilizing LED chip 620 through the next period of contamination measurement is driven, the The second sterilizing LED chip is first driven to the ON state,
Further comprising; an injection unit for periodically disinfecting the disinfectant for sterilization,
It is divided into two or more zones, and each zone is controlled in different modes.
The motion detection time is an LED lighting device having a sterilizing function, characterized in that is set based on the statistics of the user's lighting usage time by time.
delete delete delete delete delete delete According to claim 1,
LED chips 620 for sterilization are arranged side by side along the second row,
LED lighting device having a sterilization function, characterized in that the LED chips 610 for illumination are arranged side by side along the first and third columns which are spaced apart at predetermined equal intervals to the left and right sides of the second column, respectively.
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