KR-20260067538-A - Multifunctional LED Sterilization Light Device

KR20260067538AKR 20260067538 AKR20260067538 AKR 20260067538AKR-20260067538-A

Abstract

The present invention relates to a sterilization lighting device, and more specifically to a multi-functional LED sterilization lighting device equipped with a function to repel various pests such as flies and mosquitoes, and a sterilization function that is harmless to the human body. According to one embodiment of the present invention, the device comprises: a frame body formed in the shape of a triangular prism; a light-emitting unit including a plurality of LED elements provided within the frame body to emit light of different wavelength bands; and a control unit disposed within the frame body and electrically connected to the plurality of LED elements to control the turn-on and turn-off of the plurality of LED elements. The plurality of LED elements are configured to include a first LED element emitting light of a wavelength of 610 nm; a second LED element emitting blue visible light of a wavelength of 405 nm; and a third LED element emitting white short-wavelength visible light having a wavelength in the range of 400 to 450 nm.

Inventors

명건국

Assignees

주식회사 몬도

Dates

Publication Date: 20260513
Application Date: 20241106

Claims (5)

Frame body formed in the shape of a triangular prism; A light-emitting unit comprising a plurality of LED elements provided within a frame body to emit light of different wavelength bands; A control unit disposed within the frame body and electrically connected to the plurality of LED elements to control the turn-on and turn-off of the plurality of LED elements; comprising The above plurality of LED elements A first LED element emitting light of a wavelength of 610 nm; A second LED element emitting blue visible light with a wavelength of 405 nm; A multifunctional LED sterilization lighting device characterized by including a third LED element that emits white short-wavelength visible light having a wavelength in the range of 400 to 450 nm.
In paragraph 1, The above control unit A first operation mode that turns on only the first LED element; A second operation mode for turning on the second LED element and the third LED element together; and A multi-functional LED sterilization lighting device characterized by being configured to operate the light-emitting part in a third operation mode that turns on only the third LED element.
In paragraph 1, The above body frame includes a sensor unit, and the sensor unit is characterized by including at least one of a contamination detection sensor indicating the contamination level of the surrounding environment, a bacteria detection sensor indicating the presence or concentration of bacteria, a motion detection sensor indicating the presence or absence of a person or moving object, and a distance detection sensor indicating the distance to a person or moving object. Multifunctional LED sterilization lighting device.
In paragraph 1, The above body frame includes a sensor unit, the sensor unit includes a distance sensor that detects the distance to a person or a moving object, and the control unit is configured to adjust the duty cycle of each of the first to third LED elements according to the distance to the person or moving object detected by the distance sensor. Multifunctional LED sterilization lighting device.
In paragraph 4, When the presence of a person or moving object is not detected at all by the distance sensor, the control unit drives the duty cycle of the second and third LED elements to 100% to emit mixed light, which is a mixture of blue visible light with a wavelength of 405 nm and white short-wavelength visible light with a wavelength of 400 to 450 nm, from the LED sterilization lighting device, and Characterized by being configured to maintain the duty cycle of only the third LED element emitting white short-wavelength visible light of a wavelength of 400 to 450 nm at 100% when the presence of a person or moving object is detected by the distance sensor above. Multifunctional LED sterilization lighting device.

Description

Multifunctional LED Sterilization Light Device The present invention relates to a sterilization lighting device, and more specifically, to a multi-functional LED sterilization lighting device equipped with a function to repel various pests such as flies and mosquitoes, and a sterilization function that is harmless to the human body. Generally, methods for pest control include physical means such as insect screens, as well as electrical or chemical means using insecticides or repellents. Although spraying insecticides indoors is known to be highly effective in killing pests, it has a significant adverse effect on the human body. Therefore, it is not beneficial to health when used for a long time in a closed indoor space or when children and infants are present, and there is a disadvantage that if sprayed on food or tableware, it can be ingested directly. Furthermore, methods involving the electric heating of fragrance diffusers or directly burning fragrances to diffuse smoke indoors also have the disadvantage of being harmful to the human body, as they involve spreading chemicals containing insecticides into the room. In particular, since the aforementioned insecticides and fragrance-type repellents are all consumable products that must be purchased frequently, they also have a negative impact on the environment due to the generation of residues and waste after use. As an example of a device to solve the above-mentioned problems, Korean published patent No. 10-2009-0106726 discloses a pest repellent lighting device using ultrasound. However, the above-mentioned pest repellent lighting device using ultrasound has the disadvantage that it is not easy to install in places where it is necessary to prevent pests from approaching, and since it is installed on an indoor ceiling, it cannot be used while moving, thus limiting the places of use. In addition, as our society has recently experienced the pandemic caused by the novel coronavirus, interest in lighting devices with sterilization functions has been increasing. A lighting device with a sterilization function refers to a lighting device that uses light to eliminate microorganisms (bacteria, viruses, etc.) in the air or on surfaces, and can achieve a sterilization effect by mainly using ultraviolet (UV) light or LED light of a specific wavelength. Most UV-C sterilization lights use light with a wavelength of 200–280 nm, but light in this range sterilizes microorganisms by destroying DNA and RNA. This wavelength has a powerful sterilization effect and is widely used in hospitals and laboratories, but there is a possibility that human exposure to this wavelength could damage the skin and eyes. Therefore, it is important to use it in a way that avoids direct contact with people or to set it to operate only when no one is present, making it unsuitable for everyday living or residential spaces. In addition, among optical sterilizers, there are known sterilizers that perform sterilization using LEDs that emit visible light with a wavelength of 405 nm. Since visible light with a wavelength of 405 nm does not penetrate the surface of the skin unlike UV-C light, it is harmless to the human body. Furthermore, demand for such sterilizers is increasing because they can perform sterilization by destroying bacterial cells through the reaction and decomposition of porphyrin. However, existing sterilizers using LEDs that emit visible light with a wavelength of 405 nm have a problem in that while they are effective for close-range sterilization, their sterilization effect is poor at a distance. FIG. 1 is a perspective view showing a multifunctional LED sterilization lighting device according to an embodiment of the present invention; FIG. 2 is a drawing showing the side cover of a multifunctional LED sterilization lighting device according to an embodiment of the present invention in an open state; FIG. 3 is a drawing showing the form of a user control unit provided on a window screen of a multifunctional LED sterilization lighting device according to an embodiment of the present invention; FIG. 4 is an explanatory diagram for explaining the interconnection of a plurality of LED elements, a control unit, and an operating unit according to an embodiment of the present invention; FIG. 5 is a diagram for explaining the emission angle of light emitted from the second and third LED elements; FIG. 6 is a block diagram schematically illustrating the configuration of a control unit according to an embodiment of the present invention; Figure 7 is a diagram illustrating an example of PWM control of the duty cycle of an LED element by a control unit. Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. For reference, the size, line thickness, etc., of components illustrated in the drawings referenced for describing the present invention may be expressed somewhat exaggeratedly for ease of understanding. Furthermore, since t