WO2011118991A2 - Led lighting device - Google Patents

Led lighting device Download PDF

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Publication number
WO2011118991A2
WO2011118991A2 PCT/KR2011/002019 KR2011002019W WO2011118991A2 WO 2011118991 A2 WO2011118991 A2 WO 2011118991A2 KR 2011002019 W KR2011002019 W KR 2011002019W WO 2011118991 A2 WO2011118991 A2 WO 2011118991A2
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WO
WIPO (PCT)
Prior art keywords
led
unit
lighting
lighting device
light
Prior art date
Application number
PCT/KR2011/002019
Other languages
French (fr)
Korean (ko)
Other versions
WO2011118991A3 (en
Inventor
박병기
박지훈
Original Assignee
Park Byung-Ki
Park Jee-Hoon
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Park Byung-Ki, Park Jee-Hoon filed Critical Park Byung-Ki
Publication of WO2011118991A2 publication Critical patent/WO2011118991A2/en
Publication of WO2011118991A3 publication Critical patent/WO2011118991A3/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/68—Details of reflectors forming part of the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to an LED lighting device having a plurality of LED elements.
  • LED lighting device a plurality of LED elements are arranged on one board. In this case, if some of the plurality of LED devices fail, it is inexpensive to replace the entire board.
  • LED lighting device As an LED lighting device to solve this problem, there have been attempts to divide the board and modularize it into a plurality of subdivided boards so that partial replacement is possible. Such LED lighting device has a problem that the four-section of the lighting occurs between the board due to the light linearity of the LED device. In addition, in order to replace the LED module, there is an inconvenience in that the user must directly touch the LED module to which the LED elements are exposed.
  • An object of the present invention is to provide an LED lighting device that can easily replace only the corresponding area when a partial defect occurs while providing uniform and efficient lighting.
  • Still another object of the present invention is to provide a LED lighting device having high lighting efficiency while reducing manufacturing costs.
  • Another object of the present invention is to provide an LED lighting device that can easily adjust the brightness.
  • Still another object of the present invention is to provide an LED lamp having excellent heat dissipation effect.
  • the support frame A plurality of lighting units including a unit base detachably coupled to the support frame and having a reflecting surface extending from the unit base along a light path of the LED element from the unit base; And a diffuser having a partial light reflectivity for diffusing light which is disposed in the transverse direction on the optical path in front of the optical path of the LED element and which is irradiated.
  • a single SMPS or a plurality of SMPSs may control all lighting units or groups of lighting units grouped into a plurality of groups at the same time or by group, but it is preferable to provide a switched-mode power supply (SMPS) for each lighting unit.
  • SMPS switched-mode power supply
  • the diffusion unit may be separately disposed in each of the lighting units to spread the light generated from each of the lighting units, and the second diffusion unit may be supported by the support frame to diffuse the entire light generated from the plurality of lighting units. At least one of the diffusion portion.
  • the LED lighting device preferably further comprises a gripping portion.
  • the unit base for supporting the LED elements;
  • a reflector having a reflecting surface extending along a path of light generated from the LED element fixed to the unit base;
  • a diffuser configured to spread light irradiated by being disposed in a transverse direction in front of the optical path.
  • the reflector may be made of any one of glass, ceramic, metal, and plastic.
  • the reflector may be connected to a unit base to allow the LED elements to emit heat generated.
  • the LED lighting device of the present invention when a partial defect of the LED lighting device occurs, only the lighting unit corresponding to the partial defect can be easily replaced.
  • the use of a small number of LED elements can solve the problem of degradation of illumination caused by the four-section of the light generated between the lighting unit and the lighting unit.
  • ED lighting device of the present invention may individually control the lighting unit through the SMPS included in each lighting unit, or may be controlled in a group of a plurality of lighting unit group through one SMPS.
  • the reflection plate can be used to effectively dissipate heat generated from the LED elements of each lighting unit.
  • FIG. 1 is a cross-sectional view of the LED lighting device according to the present invention installed on the ceiling of the building.
  • FIG. 2 is a cross-sectional view of the LED lighting device separated from FIG. 1, illustrating a detachable state of one lighting unit.
  • FIG 3 is a perspective view showing a lighting unit having a holding unit according to another embodiment of the present invention.
  • FIG. 4 is a cross-sectional view showing in detail the structure of the lighting unit.
  • FIG. 1 shows the LED lighting device 1 installed in the groove 3 of the building ceiling 2, and FIG. 2 can be used as a separate LED lighting device 1 by hanging it on a street lamp or a factory building.
  • the support frame 10 may be made of plastic having excellent thermal conductivity, and may be made of aluminum or copper plate with an insulating layer having high heat transfer performance.
  • the illumination unit 20 includes a unit base 22, a plurality of LED elements 21, a reflector 23, and a first diffuser 27, as shown in FIG. 4.
  • the unit base 22 includes coupling members 29a and 29b for supplying a power voltage to the supported LED element 21 and for detachable coupling to the support frame 10.
  • the reflector 23 is attached to the outer side of one surface of the unit base 23 and manufactured in a funnel shape having a reflecting surface 25 extending along the optical path of the LED element 21.
  • the reflector 23 can also be manufactured integrally with the unit base 23 by injection molding.
  • the LED lighting device 1 includes a first diffuser 27 that intersects the light irradiated to scatter the linear light emitted from the LED element 21.
  • the one-diffusion unit 27 has a partial light transmittance, so that a part of the light is reflected and scattered.
  • first diffusion unit 27 instead of arranging the first diffusion unit 27 in each lighting unit 20 individually, one second diffusion unit that traverses the entire light irradiated from all the lighting units 20 of the LED lighting device 1. 30 can be used. Of course, if necessary, both the first diffusion unit 27 and the second diffusion unit 30 may be used.
  • a sheet-like transparent plate having a high light transmittance may be disposed on the side where the diffusion parts 27 and 30 are not disposed.
  • the second diffusion unit 30 is attached to the ceiling 2 when the LED lighting device 1 is installed in the groove 3 of the ceiling 2 instead of being installed in the support frame 10 as shown in FIG. 1. It is also possible to block the groove 3.
  • the detachment of the lighting unit 20 and the support frame 10 may include a receptacle socket (not shown) of the coupling members 29a and 29b of the lighting unit 20 and the support frame 10. ) Is achieved by fitting together.
  • a partial defect of the LED lamp device 1 occurs, the user can easily replace only the lighting unit 20 of the defect.
  • the adjacent adjacent lighting units 20 are arranged such that the lighting openings 26 of the reflecting unit are close to each other.
  • the present invention compensates for the decrease in luminance at the boundary point by the reflecting portion 23 disposed between the adjacent lighting units 20.
  • the present invention uses diffusers 27 and 30 that cross the path of light irradiated from the LED elements 21, where the light is partially scattered by the diffusers 27 and 30, and the scattered light is reconstructed. By reflecting to illuminate a predetermined space between the lighting unit (20).
  • the LED lighting device 1 mounts one switched-mode power supply (SMPS) 40a to the support frame 10 to drive all the lighting units 20, or a plurality of power supply devices SMPS.
  • a switched-mode power supply (40b) can be mounted and driven in each lighting unit (20).
  • SMPS switched-mode power supply
  • manufacturing costs are disadvantageous, but power can be controlled in each lighting unit 20 unit.
  • the holding portion 28 in the form of an opening is provided in the diffusion member 27.
  • the gripping portion 28 may act as a passage for dissipating heat generated inside the lighting unit 20 to the outside.
  • the shape of the gripping portion 28 is not limited to the shape of the opening, and when the lighting opening 26 is a square or a triangular shape, if R is given to a corner, a gripping portion (gap) of a predetermined space is formed between the opposite corners. Can be. In addition, it is also possible to form a gripping portion protruding in the diffusion member 27 or the reflecting portion (23).
  • the lighting unit 20 comprises a unit base 22 supporting the LED elements 21; A reflector (23) having a reflecting surface (25) shaped to diffuse along the optical path of the LED element (21) fixed to the unit base (22); Switched-mode power supply (SMPS) for supplying power to the sheet-like diffusion member 27 and the LED elements 21 which are disposed in the transverse direction to the optical path in front of the optical path and diffuse the irradiated light ( And 40b).
  • SMPS Switched-mode power supply
  • the unit base 22 supporting the LED element is made of a ceramic or plastic substrate having a high thermal conductivity or an insulating layer having high heat transfer performance on an aluminum or copper plate.
  • the shape of the unit base 22 is not limited to only a planar shape, but may be configured to a non-planar shape that is convex or concave toward the light illumination area.
  • the reflector 23 attached to the outside of the unit base 22 serves to reflect the light scattered by the diffusion member 27, and the funnel diffuses along the open inlet 24 and the light path. It consists of a reflecting surface 25 and the illumination opening 26 from which light comes out.
  • An open inlet 24 is attached to the unit base 22 to include the LED elements 21 in its opening.
  • the reflector 23 is made of a material such as glass, ceramic, aluminum (Al) film, metal, plastic, or the like. In case of using glass, the cost is low, the production is easy, and the aesthetics are beautiful. When using a material having a weak reflection function such as glass, ceramic, plastic, etc., the reflective surface 25 is coated with a reflective material.
  • the reflector 23 is made of a metal such as aluminum (Al), copper (Cu) or a plastic material having excellent thermal conductivity, and when connected to the unit base 22, the LED element 21 of the lighting unit 20 is provided. It is possible to dissipate the heat generated therefrom.
  • the diffusion part 27 is made of a material having excellent flame retardancy of a material such as polycarbonate (PC).
  • the lighting unit 20 includes coupling members 29a and 29b in the form of tap terminals (+,-cross-section pillars) to avoid user's + and-pole confusion as shown in FIG.
  • This +,-pole type coupling means 29a, 29b is used when the lighting unit 20 does not have its own switched-mode power supply (SMPS) 40b, that is, one SMPS in the LED lighting device 1 (switched-mode power supply) 40a is fitted to control a plurality of lighting units 20. If each lighting unit 20 includes a separate switched-mode power supply (SMPS) 40b, the individual switched-mode power supply (SMPS) 40b is different from FIG. 4 in the coupling members 29a and 29b. Will be included in the receptacle socket (not shown) to which it is coupled.
  • SMPS switched-mode power supply
  • Coupling members 29a and 29b in the form of a tap terminal as shown in FIG. 4 can also be manufactured in the form of a BL type connection structure such as an incandescent lamp.
  • the number of LED elements 21 included in the lighting unit 20 is determined as necessary. That is, when the LED defect rate is very small and the change rate of brightness is large, the lighting unit 20 will be composed of a larger number of LED elements 21. When the LED defect rate is very high and the brightness change rate is small, It will consist of fewer LED elements 21. In particular, when the lighting unit 20 is used as an individual luminaire, it is possible to design several kinds of lighting units 20 having various outputs by adjusting the number of LED elements.

Abstract

The present invention discloses an LED lighting device, which provides uniform and efficient lighting, and has parts of such that affected areas can be easily replaced in case of a partial defect. The LED lighting device comprises: a support frame; a plurality of lighting units having a unit base, which is coupled to the support frame and adapted to attach to and detach from the support frame, and which supports a plurality of LED elements, and a reflection unit having reflecting surfaces in a shape that extends from the unit base along the light path of the LED elements; and a diffusion unit, which is positioned at the front of and horizontally to the light path of the LED elements in order to diffuse emitted light.

Description

ＬＥＤ 조명등장치LED lighting device
본 발명은 다수의 LED 소자들을 갖는 LED 조명등장치에 관한 것이다. The present invention relates to an LED lighting device having a plurality of LED elements.
LED 조명등장치는 다수의 LED 소자들이 하나의 보드에 배열된다. 이때, 다수의 LED 소자들 중 일부에 결함이 발생할 경우 보드 전체를 교체해야 하는 비경제적인 점이 있다. In LED lighting device, a plurality of LED elements are arranged on one board. In this case, if some of the plurality of LED devices fail, it is inexpensive to replace the entire board.
이러한 문제를 해결하기 위한 LED 조명등장치로서, 보드를 분할하여 다수개의 세분화된 보드로 모듈화하여 부분 교체가 가능하도록 한 시도가 있었다. 이와 같은 LED 조명등장치는 LED 소자의 광 직진성 때문에 보드와 보드 사이에서 조명의 사구간이 발생하는 문제가 발생한다. 또한, LED 모듈을 교체하기 위해서는 사용자가 LED 소자들이 노출된 LED 모듈을 직접 손으로 만져야 하는 불편한 점이 있다. As an LED lighting device to solve this problem, there have been attempts to divide the board and modularize it into a plurality of subdivided boards so that partial replacement is possible. Such LED lighting device has a problem that the four-section of the lighting occurs between the board due to the light linearity of the LED device. In addition, in order to replace the LED module, there is an inconvenience in that the user must directly touch the LED module to which the LED elements are exposed.
본 발명의 목적은 균일하고 효율적인 조명을 제공하면서 부분 결함 발생시 해당 영역만을 용이하게 교체할 수 있는 LED 조명등장치를 제공함에 있다.An object of the present invention is to provide an LED lighting device that can easily replace only the corresponding area when a partial defect occurs while providing uniform and efficient lighting.
본 발명의 또 다른 목적은 제조비용을 줄이면서 조명 효율은 높은 LED 조명등장치를 제공함에 있다.Still another object of the present invention is to provide a LED lighting device having high lighting efficiency while reducing manufacturing costs.
본 발명의 다른 목적은 휘도를 용이하게 조절할 수 있는 LED 조명등장치를 제공함에 있다.Another object of the present invention is to provide an LED lighting device that can easily adjust the brightness.
본 발명의 또 다른 목적은 방열효과가 우수한 LED 조명등장치를 제공함에 있다.Still another object of the present invention is to provide an LED lamp having excellent heat dissipation effect.
상기 목적을 달성하기 위한 LED 조명등장치는, 지지프레임; 상기 지지프레임에 착탈가능하게 결합되고 복수의 LED 소자들을 지지하는 유니트 베이스 및 상기 유니트 베이스로부터 상기 LED 소자의 광경로를 따라 확장하는 형상의 반사면을 갖는 반사부를 포함하는 복수의 조명 유니트; 및 상기 LED 소자의 광경로의 전방에 광경로에 가로방향으로 배치되어 조사되는 광을 확산시키기 위한 부분광반사성을 갖는 확산부를 포함한다.LED lighting device for achieving the above object, the support frame; A plurality of lighting units including a unit base detachably coupled to the support frame and having a reflecting surface extending from the unit base along a light path of the LED element from the unit base; And a diffuser having a partial light reflectivity for diffusing light which is disposed in the transverse direction on the optical path in front of the optical path of the LED element and which is irradiated.
여기서, 단일의 SMPS 혹은 복수의 SMPS로 모든 조명 유니트 혹은 복수개로 그룹화된 조명 유니트 그룹들을 동시에 혹은 그룹별로 제어하도록 할 수도 있지만, 각 조명 유니트들에 SMPS(switched-mode power supply)를 마련하는 것도 바람직하다. In this case, a single SMPS or a plurality of SMPSs may control all lighting units or groups of lighting units grouped into a plurality of groups at the same time or by group, but it is preferable to provide a switched-mode power supply (SMPS) for each lighting unit. Do.
상기 확산부는, 상기 각 조명유니트에 개별적으로 배치되어 각 조명유니트로부터 발생하는 광을 확산하는 제1확산부와 상기 지지프레임에 지지되어 복수의 상기 조명 유니트들로부터 발생하는 광 전체를 확산하는 제2확산부 중 적어도 어느 하나를 포함한다.The diffusion unit may be separately disposed in each of the lighting units to spread the light generated from each of the lighting units, and the second diffusion unit may be supported by the support frame to diffuse the entire light generated from the plurality of lighting units. At least one of the diffusion portion.
상기 LED 조명등장치는 파지부를 더 포함하는 것이 바람직하다. The LED lighting device preferably further comprises a gripping portion.
본 발명에 따른 LED 조명등유니트는, 상기 LED 소자들을 지지하는 유니트 베이스; 상기 유니트 베이스에 고정된 LED 소자로부터 발생하는 광의 경로를 따라 확장하는 형상의 반사면을 갖는 반사부; 및 상기 광경로의 전방에 가로방향으로 배치되어 조사되는 광을 확산시키기 위한 확산부를 포함한다.LED lighting unit according to the invention, the unit base for supporting the LED elements; A reflector having a reflecting surface extending along a path of light generated from the LED element fixed to the unit base; And a diffuser configured to spread light irradiated by being disposed in a transverse direction in front of the optical path.
상기 반사부는 유리, 세라믹, 금속 및 플라스틱 중 어느 하나로 이루어질 수 있다.The reflector may be made of any one of glass, ceramic, metal, and plastic.
또한, 상기 반사부는 유니트 베이스에 연결되어, 상기 LED 소자들이 발생한 열을 방출하도록 하는 것도 가능하다.In addition, the reflector may be connected to a unit base to allow the LED elements to emit heat generated.
본 발명의 LED 조명등장치에 의하면, LED 조명등장치의 부분 결함 발생시에 해당 부분결함에 해당하는 조명 유니트만을 용이하게 교체할 수 있다.According to the LED lighting device of the present invention, when a partial defect of the LED lighting device occurs, only the lighting unit corresponding to the partial defect can be easily replaced.
또한, 적은 수의 LED 소자를 사용하면서도 조명 유니트와 조명 유니트 사이에서 발생하는 조명의 사구간 발생에 따른 조도 저하문제를 해소할 수 있다.In addition, the use of a small number of LED elements can solve the problem of degradation of illumination caused by the four-section of the light generated between the lighting unit and the lighting unit.
본 발명의 ED 조명등장치는 각 조명 유니트에 포함된 SMPS를 통하여 조명 유니트를 개별적으로 제어하거나, 하나의 SMPS를 통하여 복수의 조명 유니트 그룹 형태로 묶어서 제어할 수도 있다.ED lighting device of the present invention may individually control the lighting unit through the SMPS included in each lighting unit, or may be controlled in a group of a plurality of lighting unit group through one SMPS.
또한, 반사판을 이용하여 각 조명 유니트의 LED 소자들로부터 발생된 열을 효과적으로 방출할 수 있다.In addition, the reflection plate can be used to effectively dissipate heat generated from the LED elements of each lighting unit.
도 1은 건축물 천장에 설치된 본 발명에 따른 LED 조명등장치의 단면도이다.1 is a cross-sectional view of the LED lighting device according to the present invention installed on the ceiling of the building.
도 2는 도 1에서 분리한 LED 조명등장치의 단면도를 나타낸 것으로, 하나의 조명 유니트의 착탈 상태를 나타낸 단면도이다. FIG. 2 is a cross-sectional view of the LED lighting device separated from FIG. 1, illustrating a detachable state of one lighting unit. FIG.
도 3은 본 발명의 다른 실시예에 따른 파지부를 갖는 조명 유니트를 나타낸 사시도이다.3 is a perspective view showing a lighting unit having a holding unit according to another embodiment of the present invention.
도 4는 조명 유니트의 구조를 상세히 나타낸 단면도이다.4 is a cross-sectional view showing in detail the structure of the lighting unit.
이하 본 발명에 따른 LED 조명등장치의 실시예를 첨부된 도면들을 참조하여 상세히 설명한다.DETAILED DESCRIPTION Hereinafter, an embodiment of an LED lighting device according to the present invention will be described in detail with reference to the accompanying drawings.
도 1은 건물 천장(2)의 홈부(3)에 설치된 LED 조명등장치(1)를 나타낸 것이고, 도 2는 분리된 LED 조명등장치(1)로서 가로등이나 공장 건물에 매달아 사용할 수 있다.FIG. 1 shows the LED lighting device 1 installed in the groove 3 of the building ceiling 2, and FIG. 2 can be used as a separate LED lighting device 1 by hanging it on a street lamp or a factory building.
지지프레임(10)에는 다수의 조명 유니트(20)들이 탈착가능하게 부착되어 있다. 지지프레임(10)은 열전도성이 우수한 플라스틱으로 제작될 수 있으며, 열전달 성능이 높은 절연층을 부착한 알루미늄 또는 구리 판재로 제작될 수도 있다.A plurality of lighting units 20 are detachably attached to the support frame 10. The support frame 10 may be made of plastic having excellent thermal conductivity, and may be made of aluminum or copper plate with an insulating layer having high heat transfer performance.
상기 조명 유니트(20)는 도 4에 개시된 바와 같이 유니트 베이스(22), 다수의 LED 소자(21), 반사부(23), 및 제1확산부(27)를 포함한다. The illumination unit 20 includes a unit base 22, a plurality of LED elements 21, a reflector 23, and a first diffuser 27, as shown in FIG. 4.
상기 유니트 베이스(22)는 지지된 LED 소자(21)에 전원전압을 공급하고 상기 지지프레임(10)에의 착탈가능 결합을 위한 결합부재(29a, 29b)를 포함한다. The unit base 22 includes coupling members 29a and 29b for supplying a power voltage to the supported LED element 21 and for detachable coupling to the support frame 10.
상기 반사부(23)는 상기 유니트 베이스(23)의 일면 외곽에 부착되어 LED 소자(21)의 광경로를 따라 확장하는 반사면(25)을 갖는 깔대기 형상으로 제작된다. 반사부(23)는 사출성형에 의해 유니트 베이스(23)와 일체로 제작하는 것도 가능하다. The reflector 23 is attached to the outer side of one surface of the unit base 23 and manufactured in a funnel shape having a reflecting surface 25 extending along the optical path of the LED element 21. The reflector 23 can also be manufactured integrally with the unit base 23 by injection molding.
도 1 및 도 2에는 개시된 바와 같이, LED 조명등장치(1)는 LED 소자(21)에서 방출하는 직진성 광을 산란시키기 위해 조사되는 광을 가로지르는 제1확산부(27)가 배치되는데, 상기 제1확산부(27)는 부분광투과성을 갖고 있어서 광의 일부가 반사되어 산란된다.As shown in FIGS. 1 and 2, the LED lighting device 1 includes a first diffuser 27 that intersects the light irradiated to scatter the linear light emitted from the LED element 21. The one-diffusion unit 27 has a partial light transmittance, so that a part of the light is reflected and scattered.
상기 제1확산부(27)를 각 조명유니트(20)에 개별적으로 배치하는 대신에, LED 조명등장치(1)의 모든 조명 유니트(20)로부터 조사되는 광 전체를 가로지르는 하나의 제2확산부(30)가 사용될 수 있다. 물론 필요에 따라 제1확산부(27)와 제2확산부(30) 모두를 사용할 수도 있다.Instead of arranging the first diffusion unit 27 in each lighting unit 20 individually, one second diffusion unit that traverses the entire light irradiated from all the lighting units 20 of the LED lighting device 1. 30 can be used. Of course, if necessary, both the first diffusion unit 27 and the second diffusion unit 30 may be used.
상기 제1확산부(27)와 제2확산부(30) 중 어느 하나만 배치하는 경우, 확산부(27,30)가 배치되지 않는 쪽은 광투과율이 좋은 시트상 투명판이 배치될 수 있다. When only one of the first diffusion part 27 and the second diffusion part 30 is disposed, a sheet-like transparent plate having a high light transmittance may be disposed on the side where the diffusion parts 27 and 30 are not disposed.
상기 제2확산부(30)는 지지프레임(10)에 설치되는 대신에 도 1과 같이 LED 조명등장치(1)를 천장(2)의 홈부(3)에 설치하는 경우 천장(2)에 부착되어 홈부(3)를 막는 것도 가능하다. The second diffusion unit 30 is attached to the ceiling 2 when the LED lighting device 1 is installed in the groove 3 of the ceiling 2 instead of being installed in the support frame 10 as shown in FIG. 1. It is also possible to block the groove 3.
도 2에 나타낸 바와 같이, 상기 조명 유니트(20)들과 지지프레임(10)의 착탈은 상기 조명 유니트(20)의 결합부재(29a, 29b)와 지지프레임(10)의 리셉터클 소켓(도시되지 않음)의 상호 끼워맞춤에 의해 이루어진다. LED 조명등장치(1)의 부분 결함이 발생하였을 때, 사용자는 편리하게 해당 결함의 조명 유니트(20)만을 용이교체할 수 있다. As shown in FIG. 2, the detachment of the lighting unit 20 and the support frame 10 may include a receptacle socket (not shown) of the coupling members 29a and 29b of the lighting unit 20 and the support frame 10. ) Is achieved by fitting together. When a partial defect of the LED lamp device 1 occurs, the user can easily replace only the lighting unit 20 of the defect.
도 1 및 도 2에 나타나 있는 바와 같이, 결합된 인접 조명 유니트들(20)은 반사부의 조명개구(26)가 서로 근접하도록 배치되어 있다.As shown in FIGS. 1 and 2, the adjacent adjacent lighting units 20 are arranged such that the lighting openings 26 of the reflecting unit are close to each other.
LED 소자(21)들이 방출하는 광은 직진성이 강하기 때문에 서로 인접하는 조명유니트(20) 사이에서 휘도 저하가 발생할 수 있다. 본 발명은 인접하는 조명 유니트들(20) 사이에 배치되는 반사부(23)에 의해 경계 지점의 휘도저하를 보상하여 준다. Since the light emitted from the LED elements 21 has a strong straightness, luminance degradation may occur between adjacent lighting units 20. The present invention compensates for the decrease in luminance at the boundary point by the reflecting portion 23 disposed between the adjacent lighting units 20.
본 발명은 LED 소자들(21)로부터 조사된 광의 경로를 가로지르는 확산부(27, 30)를 사용하게 되는데, 이때 확산부(27,30)에 의해 부분적으로 광들이 산란되고, 이러한 산란광을 재반사하여 조명 유니트(20) 사이의 일정 공간을 비추도록 한 것이다. The present invention uses diffusers 27 and 30 that cross the path of light irradiated from the LED elements 21, where the light is partially scattered by the diffusers 27 and 30, and the scattered light is reconstructed. By reflecting to illuminate a predetermined space between the lighting unit (20).
LED 조명등장치(1)는 하나의 전원공급장치(SMPS: switched-mode power supply)(40a)를 지지프레임(10)에 장착하여 모든 조명 유니트(20)를 구동하거나, 복수의 전원공급장치(SMPS: switched-mode power supply)(40b)를 각 조명 유니트(20)에 장착하여 구동할 수 있다. 각 조명 유니트 마다 고유의 전원공급장치(SMPS: switched-mode power supply)(40b)를 부착하는 경우는 제조 비용이 많이 드는 단점이 있으나 각 조명 유니트(20) 단위로 전원을 제어할 수 있다.The LED lighting device 1 mounts one switched-mode power supply (SMPS) 40a to the support frame 10 to drive all the lighting units 20, or a plurality of power supply devices SMPS. A switched-mode power supply (40b) can be mounted and driven in each lighting unit (20). In the case of attaching a unique switched-mode power supply (SMPS) 40b to each lighting unit, manufacturing costs are disadvantageous, but power can be controlled in each lighting unit 20 unit.
도 3에 개시된 바와 같이 조명 유니트들(20)의 조명개구(26)가 사각형일 경우, 결합된 조명 유니트들(20)들 상호간에 빈 틈이 거의 존재하지 않는 경우가 발생하여 중앙의 조명 유니트를 교체할 때 불편을 초래할 수 있다.As shown in FIG. 3, when the lighting openings 26 of the lighting units 20 have a rectangular shape, there is almost no empty gap between the combined lighting units 20, so that the central lighting unit may be replaced. It may cause inconvenience when replacing.
본 발명은 개구부 형태의 파지부(28)를 확산부재(27)에 마련하였다. 이러한 파지부(28)는 조명 유니트(20) 내부에서 발생된 열을 외부로 방출하여 주는 통로로서 작용할 수도 있다. In the present invention, the holding portion 28 in the form of an opening is provided in the diffusion member 27. The gripping portion 28 may act as a passage for dissipating heat generated inside the lighting unit 20 to the outside.
상기 파지부(28)의 형태는 개구부 형태로 한정되지 않으며, 조명개구(26)가 사각형이나 3각형일 경우 코너에 R을 주어 제작하면 마주보는 코너 사이에 일정공간의 파지부(갭)가 형성될 수 있다. 또한, 돌출하는 형태의 파지부를 상기 확산부재(27) 또는 반사부(23)에 형성하는 것도 가능하다.The shape of the gripping portion 28 is not limited to the shape of the opening, and when the lighting opening 26 is a square or a triangular shape, if R is given to a corner, a gripping portion (gap) of a predetermined space is formed between the opposite corners. Can be. In addition, it is also possible to form a gripping portion protruding in the diffusion member 27 or the reflecting portion (23).
도 4는 조명 유니트(20)를 상세히 나타낸 도로서, 조명 유니트(20)는 상기 LED 소자들(21)을 지지하는 유니트 베이스(22); 상기 유니트 베이스(22)에 고정된 LED 소자(21)의 광경로를 따라 확산하는 형상의 반사면(25)을 갖는 반사부(23); 상기 광경로의 전방에 광경로에 가로방향으로 배치되어 조사되는 광을 확산하는 시트상의 확산부재(27) 및 상기 LED 소자들(21)에 전원을 공급하기 위한 SMPS(switched-mode power supply)(40b)를 포함하여 구성한다.4 shows the lighting unit 20 in detail, wherein the lighting unit 20 comprises a unit base 22 supporting the LED elements 21; A reflector (23) having a reflecting surface (25) shaped to diffuse along the optical path of the LED element (21) fixed to the unit base (22); Switched-mode power supply (SMPS) for supplying power to the sheet-like diffusion member 27 and the LED elements 21 which are disposed in the transverse direction to the optical path in front of the optical path and diffuse the irradiated light ( And 40b).
상기 LED 소자를 지지하는 유니트 베이스(22)는 알루미늄 또는 구리 판재 위에 열전달 성능이 높은 절연층을 부착하거나, 열전도성이 우수한 세라믹 또는 플라스틱 기판으로 제작한다. 유니트 베이스(22)의 형상은 평면 형상만으로 제한되지 않으며, 광조명영역을 향해 볼록하거나 오목한 비평면 형상으로도 구성할 수 있다.The unit base 22 supporting the LED element is made of a ceramic or plastic substrate having a high thermal conductivity or an insulating layer having high heat transfer performance on an aluminum or copper plate. The shape of the unit base 22 is not limited to only a planar shape, but may be configured to a non-planar shape that is convex or concave toward the light illumination area.
상기 유니트 베이스(22)의 외곽에 부착된 반사부(23)는 확산부재(27)에 의해 산란하는 광들을 반사하는 역할을 하며, 개방된 형태의 입구(24), 광경로를 따라 확산하는 깔대기 형상의 반사면(25) 및 광이 나오는 조명개구(26)로 구성된다. 개방된 입구(24)는 그 개방부 내에 LED 소자들(21)을 포함하도록 유니트 베이스(22)에 부착된다. The reflector 23 attached to the outside of the unit base 22 serves to reflect the light scattered by the diffusion member 27, and the funnel diffuses along the open inlet 24 and the light path. It consists of a reflecting surface 25 and the illumination opening 26 from which light comes out. An open inlet 24 is attached to the unit base 22 to include the LED elements 21 in its opening.
반사부(23)는 유리, 세라믹, 알루미늄(Al) 필름, 금속, 플라스틱 등과 같은 재료로 만들어진다. 유리를 이용하여 제작할 경우 원가가 싸고 생산이 용이하면서 미감이 수려한 장점이 있다. 유리, 세라믹, 플라스틱 등과 같이 반사 기능이 약한 재질을 사용할 경우에는 상기 반사면(25)을 반사물질로 코팅하여 사용한다.The reflector 23 is made of a material such as glass, ceramic, aluminum (Al) film, metal, plastic, or the like. In case of using glass, the cost is low, the production is easy, and the aesthetics are beautiful. When using a material having a weak reflection function such as glass, ceramic, plastic, etc., the reflective surface 25 is coated with a reflective material.
또한, 반사부(23)는 알루미늄(Al), 구리(Cu)와 같은 금속이나 열전도성이 우수한 플라스틱 재질로 제작하여 유니트 베이스(22)에 연결하면, 조명 유니트(20)의 LED 소자(21)로부터 발생된 열을 방출하도록 할 수 있다. In addition, the reflector 23 is made of a metal such as aluminum (Al), copper (Cu) or a plastic material having excellent thermal conductivity, and when connected to the unit base 22, the LED element 21 of the lighting unit 20 is provided. It is possible to dissipate the heat generated therefrom.
상기 확산부(27)는 폴리카보네이트(PC)와 같은 재질의 난연성이 우수한 재료로 제작된다. The diffusion part 27 is made of a material having excellent flame retardancy of a material such as polycarbonate (PC).
조명 유니트(20)는 4에 도시된 바와 같이 사용자의 +, -극 혼동을 피하기 위해 탭(tap)터미널 형태(+,-단면형상의 기둥)의 결합부재(29a, 29b)를 포함한다. 이러한 +, -극 형태의 결합수단(29a, 29b)은 조명 유니트(20)가 고유의 SMPS(switched-mode power supply)(40b)를 갖지 않을 경우, 즉 LED 조명등장치(1)에 하나의 SMPS(switched-mode power supply)(40a)가 장착되어 다수의 조명 유니트(20)들을 제어할 경우에 적합하다. 만일, 각 조명 유니트(20)가 개별 SMPS(switched-mode power supply)(40b)를 포함하는 경우, 개별 SMPS(switched-mode power supply)(40b)는 도 4와는 다르게 결합부재(29a, 29b)가 결합되는 리셉터클 소켓(도시되지 않음)에 포함될 것이다.The lighting unit 20 includes coupling members 29a and 29b in the form of tap terminals (+,-cross-section pillars) to avoid user's + and-pole confusion as shown in FIG. This +,-pole type coupling means 29a, 29b is used when the lighting unit 20 does not have its own switched-mode power supply (SMPS) 40b, that is, one SMPS in the LED lighting device 1 (switched-mode power supply) 40a is fitted to control a plurality of lighting units 20. If each lighting unit 20 includes a separate switched-mode power supply (SMPS) 40b, the individual switched-mode power supply (SMPS) 40b is different from FIG. 4 in the coupling members 29a and 29b. Will be included in the receptacle socket (not shown) to which it is coupled.
도 4에 나타낸 바와 같은 탭(tap)터미널 형태의 결합부재(29a, 29b)는 백열등과 같은 BL타입의 접속구조의 형태로 제작하는 것도 가능하다.Coupling members 29a and 29b in the form of a tap terminal as shown in FIG. 4 can also be manufactured in the form of a BL type connection structure such as an incandescent lamp.
상기 조명 유니트(20)에 포함되는 LED 소자(21)의 수는 필요에 따라 결정된다. 즉, LED 결함률이 매우 적고 휘도의 변화율을 크게 가져갈 경우는 보다 많은 수의 LED 소자(21)들로 조명 유니트(20)를 구성하게 될 것이고, LED 결함률이 매우 많고 휘도의 변화율을 작게 가져갈 경우는 보다 적은 수의 LED 소자(21)들로 구성하게 될 것이다. 특히, 조명 유니트(20)가 개별 조명기구로 사용될 경우에는 LED 소자들의 수를 조절하여 다양한 출력을 갖는 여러 종류의 조명 유니트(20)를 설계할 수 있다.The number of LED elements 21 included in the lighting unit 20 is determined as necessary. That is, when the LED defect rate is very small and the change rate of brightness is large, the lighting unit 20 will be composed of a larger number of LED elements 21. When the LED defect rate is very high and the brightness change rate is small, It will consist of fewer LED elements 21. In particular, when the lighting unit 20 is used as an individual luminaire, it is possible to design several kinds of lighting units 20 having various outputs by adjusting the number of LED elements.
상술한 설명은 본 발명의 기술사상을 예시적으로 설명한 것에 불과한 것으로서, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 본 발명의 본질적인 특성에서 벗어나지 않는 범위 내에서 다양한 수정, 변경 및 치환이 가능할 것이다.The foregoing description is merely illustrative of the technical spirit of the present invention, and various modifications, changes and substitutions may be made by those skilled in the art without departing from the essential characteristics of the present invention. It will be possible.

Claims (9)

  1. 다수의 LED 소자들을 갖는 LED 조명등장치에 있어서,In the LED lighting device having a plurality of LED elements,
    지지프레임;Support frame;
    상기 지지프레임에 착탈가능하게 결합되고 복수의 LED 소자들을 지지하는 유니트 베이스 및 상기 유니트 베이스로부터 상기 LED 소자의 광경로를 따라 확장하는 형상의 반사면을 갖는 반사부를 포함하는 복수의 조명 유니트; 및A plurality of lighting units including a unit base detachably coupled to the support frame and having a reflecting surface extending from the unit base along a light path of the LED element from the unit base; And
    상기 LED 소자의 광경로의 전방에 광경로에 가로방향으로 배치되어 조사되는 광을 확산시키기 위한 확산부를 포함하는 LED 조명등장치.LED lighting device including a diffusion unit for diffusing the light is disposed in the transverse direction to the optical path in front of the optical path of the LED element.
  2. 청구항 1에 있어서,The method according to claim 1,
    복수의 SMPS를 포함하며, 각 SMPS는 상기 복수의 조명 유니트 중 적어도 하나의 조명 유니트를 제어하는 것을 특징으로 하는 LED 조명등장치.LED lighting device comprising a plurality of SMPS, each SMPS controls at least one lighting unit of the plurality of lighting units.
  3. 청구항 1에 있어서The method according to claim 1
    상기 확산부는, 상기 각 조명유니트에 개별적으로 배치되어 각 조명유니트로부터 조사되는 광을 확산하는 제1확산부와 상기 지지프레임에 지지되어 복수의 상기 조명 유니트들로부터 조사되는 광 전체를 확산하는 제2확산부 중 적어도 어느 하나를 포함하는 것을 특징으로 하는 LED 조명등장치.The diffusion unit may be disposed separately in each of the lighting units, and the first diffusion unit may diffuse light emitted from each lighting unit, and the second diffuser may be configured to diffuse the entire light irradiated from the plurality of lighting units supported by the support frame. LED lighting device comprising at least one of the diffusion.
  4. 청구항 1에 있어서,The method according to claim 1,
    상기 조명 유니트가 파지부를 더 포함하는 것을 특징으로 하는 LED 조명등장치.LED lighting device, characterized in that the lighting unit further comprises a grip.
  5. 청구항 1에 있어서.The method according to claim 1.
    상기 반사부가 유리, 세라믹, 금속 및 플라스틱 중 하나로 이루어진 것을 특징으로 하는 LED 조명등장치. LED reflector, characterized in that the reflector is made of one of glass, ceramic, metal and plastic.
  6. 청구항 5에 있어서.The method according to claim 5.
    상기 반사부는 유니트 베이스에 연결되어, 상기 LED 소자들이 발생한 열을 방출하는 것을 특징으로 하는 LED 조명등장치. The reflector is connected to the unit base, the LED lamp device characterized in that to emit heat generated by the LED elements.
  7. 다수의 LED 소자들을 갖는 LED 조명유니트에 있어서,In an LED lighting unit having a plurality of LED elements,
    상기 LED 소자들을 지지하는 유니트 베이스;A unit base for supporting the LED elements;
    상기 유니트 베이스에 고정된 LED 소자로부터 발생하는 광의 경로를 따라 확장하는 형상의 반사면을 갖는 반사부; 및 A reflector having a reflecting surface extending along a path of light generated from the LED element fixed to the unit base; And
    상기 광경로의 전방에 가로방향으로 배치되어 조사되는 광을 확산시키기 위한 확산부를 포함하는 LED 조명유니트.LED lighting unit comprising a diffuser for diffusing the light is disposed in the transverse direction in front of the light path.
  8. 청구항 7에 있어서.The method of claim 7.
    상기 반사부가 유리, 세라믹, 금속 및 플라스틱 중 하나로 이루어진 것을 특징으로 하는 LED 조명유니트. LED reflecting unit, characterized in that the reflector is made of one of glass, ceramic, metal and plastic.
  9. 청구항 7에 있어서.The method of claim 7.
    상기 반사부는 유니트 베이스에 연결되어, 상기 LED 소자들이 발생한 열을 방출하는 것을 특징으로 하는 LED 조명유니트. The reflector is connected to the unit base, LED lighting unit, characterized in that for dissipating heat generated by the LED elements.
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US9285099B2 (en) 2012-04-23 2016-03-15 Cree, Inc. Parabolic troffer-style light fixture
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US10309627B2 (en) 2012-11-08 2019-06-04 Cree, Inc. Light fixture retrofit kit with integrated light bar
US9494304B2 (en) 2012-11-08 2016-11-15 Cree, Inc. Recessed light fixture retrofit kit
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WO2014135486A1 (en) * 2013-03-07 2014-09-12 Zumtobel Lighting Gmbh Lighting device with an led lighting module
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US10527225B2 (en) 2014-03-25 2020-01-07 Ideal Industries, Llc Frame and lens upgrade kits for lighting fixtures
DE102014104436B4 (en) * 2014-03-28 2021-03-11 Siteco Gmbh Optical cover for a luminaire or a luminaire module
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