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KR102241426B1 - Led flood light with multi lighting area - Google Patents

Led flood light with multi lighting area Download PDF

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Publication number
KR102241426B1
KR102241426B1 KR1020200080554A KR20200080554A KR102241426B1 KR 102241426 B1 KR102241426 B1 KR 102241426B1 KR 1020200080554 A KR1020200080554 A KR 1020200080554A KR 20200080554 A KR20200080554 A KR 20200080554A KR 102241426 B1 KR102241426 B1 KR 102241426B1
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South Korea
Prior art keywords
light
led
light distribution
emitting area
disposed
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KR1020200080554A
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Korean (ko)
Inventor
윤철구
Original Assignee
주식회사 바이더엠
루멘전광 주식회사
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Priority to KR1020200080554A priority Critical patent/KR102241426B1/en
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Publication of KR102241426B1 publication Critical patent/KR102241426B1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-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
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/61Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • F21S8/03Lighting devices intended for fixed installation of surface-mounted type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00Protecting lighting devices from damage
    • F21V15/01Housings, e.g. material or assembling of housing parts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • F21V23/005Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate is supporting also the light source
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00Reflectors for light sources
    • F21V7/04Optical design
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V2200/00Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

According to an aspect of the present invention, an LED floodlight with a multi-emission area comprises: a body unit (110) fixedly mounted on a ceiling or wall; a PCB (120) horizontally disposed at a lower portion of the body unit (110), having a plurality of LEDs (121, 123) distributed and disposed at a lower surface, having a central emission area (122) disposed with the LED (121) for increasing light efficiency at the center on the lower surface, and having an outer emission area (124) disposed with the LED (123) for controlling light distribution at the outside; and a light distribution adjusting plate (130) having a plate shape corresponding to the outer emission area (124), horizontally disposed at a lower portion of the PCB (120) in a shape of covering the outer emission area (124), formed with a light distribution groove (131) at a position corresponding to the LED (123) for controlling light distribution, and having a vertically opened LED through-hole (132) for exposing the LED (123) downward for controlling light distribution at the center of each light distribution groove (131). The light distribution groove (131) has an upwardly depressed groove shape, such that the light distribution angle (Θ2) reflected on an inner surface is relatively smaller than the light distribution angle (Θ1) of illumination light emitted from the LED for controlling light distribution. Accordingly, the light efficiency of the illumination light can be secured.

Description

멀티 발광영역이 구비된 LED투광등{LED FLOOD LIGHT WITH MULTI LIGHTING AREA}LED Flood Light with Multi-Emitting Area{LED FLOOD LIGHT WITH MULTI LIGHTING AREA}

본 발명은 멀티 발광영역이 구비된 LED투광등에 관한 것으로, 보다 상세하게는 설정된 배광각으로 조명광이 조사되면서도 조명광의 광효율이 증대될 수 있도록 멀티 발광영역이 구비된 LED투광등에 관한 것이다.The present invention relates to an LED floodlight having a multi-light emitting area, and more particularly, to an LED floodlight having a multi-light emitting area so that the light efficiency of the illumination light can be increased while the illumination light is irradiated at a set light distribution angle.

도 1을 참고하면 일반적으로 LED 조명장치는 PCB(300)의 저면에 실장된 LED(400)에서 발광된 빛을 하향 조사하여 조명광을 제공한다. 또한, LED(400)에서 발산된 조명광은 대략 120도의 배광각(θ1)으로 확산되어 조사되는데, 이로 인해 조명장치의 용도나 설치장소에 따라 LED(400)의 배광각을 좁히거나 넓히고자 하는 경우 도 2 및 도 3에 도시된 바와 같이 각 LED(400)마다 렌즈(200)를 장착하여 배광각을 조절할 수 있었다.Referring to FIG. 1, in general, an LED lighting device irradiates light emitted from the LED 400 mounted on the bottom of the PCB 300 downward to provide illumination light. In addition, the illumination light emitted from the LED 400 is diffused and irradiated at a distribution angle of approximately 120 degrees (θ1). As shown in FIGS. 2 and 3, a lens 200 was mounted for each LED 400 to adjust the light distribution angle.

그러나, 이러한 렌즈(200)를 각 LED(400)마다 일일이 배치해야 하기 때문에 제조시간 및 제조비용이 크게 증가하게 되는 문제점이 있었다. 또한, 상기 렌즈(200)는 통상적으로 광원의 광이 투과될 수 있도록 아크릴(Acrylic)이나 폴리카보네이트(PC) 등의 유기물 재질로 제조하는데, 상기 유기물 재질은 표면저항이 높아 정전기가 쉽게 발생하게 되며 정전기로 인해 표면에 먼지 등의 이물질이 흡착되는 문제점이 있었다.However, there is a problem in that the manufacturing time and manufacturing cost are greatly increased because the lens 200 must be disposed for each LED 400 individually. In addition, the lens 200 is usually made of an organic material such as acrylic or polycarbonate (PC) so that the light of the light source can be transmitted. The organic material has a high surface resistance, so that static electricity is easily generated. There is a problem in that foreign substances such as dust are adsorbed on the surface due to static electricity.

더욱이, 조명장치의 광효율을 증대시키기 위해서는 LED(400)의 장착수량을 늘려야 하나 각 렌즈(200)의 장착공간을 확보하기 위해 각 LED(400)간에 일정거리로 이격되어야 하기 때문에 한정된 발광영역(LED가 배치가능한 영역) 내에서 LED(400)의 장착수량을 증가시키기에는 한계가 존재하기 때문에 전체적인 광효율이 저하될 수 밖에 없는 문제점이 있었다.Moreover, in order to increase the light efficiency of the lighting device, the number of installations of the LEDs 400 must be increased, but since the LEDs 400 must be separated by a certain distance to secure the mounting space for each lens 200, a limited light emitting area (LED There is a problem in that the overall light efficiency is degraded because there is a limit to increasing the number of LEDs 400 to be mounted within the area in which the LEDs 400 can be installed.

등록실용신안공보 제20-0486216호(2018.04.10), 보호케이스가 마련된 LED 조명 모듈.Registered Utility Model Publication No. 20-0486216 (2018.04.10), LED lighting module with protective case.

본 발명은 상술한 문제점을 해결하기 위하여 창출된 것으로, 본 발명의 목적은 PCB의 발광영역이 조명광의 배광각을 조절하기 위한 발광영역과 조명광의 광효율을 증대시키기 위한 발광영역으로 구분되어 설정된 배광각으로 조명광이 조사되면서도 요구되는 조명광의 광효율을 확보가능한 멀티 발광영역이 구비된 LED투광등을 제공하는 것에 있다.The present invention was created to solve the above-described problems, and an object of the present invention is that the light distribution angle set by dividing the emission area of the PCB into a light emission area for adjusting the light distribution angle of the illumination light and a light emission area for increasing the light efficiency of the illumination light. It is to provide an LED floodlight provided with a multi-light emitting area capable of securing the required light efficiency while the illumination light is irradiated.

본 발명의 특징에 따르면, 천장이나 벽면에 고정장착되는 바디부(110); 상기 바디부(110)의 하부에 수평배치되고 하부면에는 복수 개의 LED(121,123)가 분산배치되되 하부면 상에서 중앙에는 광효율증대용 LED(121)가 배치된 중심발광영역(122)이 마련되고 외곽에는 배광조절용 LED(123)가 배치된 외곽발광영역(124)이 마련된 PCB(120); 및 상기 외곽발광영역(124)과 대응되는 판형상으로 이루어져 외곽발광영역(124)을 커버하는 형태로 PCB(120)의 하부에 수평배치되고 각 배광조절용 LED(123)와 대응되는 위치에는 배광홈(131)이 형성되며 각 배광홈(131)의 중앙에는 배광조절용 LED(123)를 하향 노출시키기 위한 LED관통공(132)이 상하로 개구된 배광조절판(130);을 포함하며, 상기 배광홈(131)은 내면에 반사된 배광각(θ2)이 상기 배광조절용 LED에서 발산된 조명광의 배광각(θ1)보다 상대적으로 작아지도록 상향 오목하게 함몰된 홈형상을 갖는 것을 특징으로 하는 멀티 발광영역이 구비된 LED투광등이 제공된다.According to a feature of the present invention, the body portion 110 fixedly mounted on the ceiling or wall; A plurality of LEDs 121 and 123 are disposed horizontally under the body portion 110 and a plurality of LEDs 121 and 123 are distributed on the lower surface, but a central light emitting area 122 in which an LED 121 for increasing light efficiency is disposed is provided in the center on the lower surface, and the outer side The PCB 120 is provided with an outer light emitting area 124 in which the light distribution control LED 123 is disposed; And a plate shape corresponding to the outer light-emitting area 124, and is horizontally disposed under the PCB 120 in a form that covers the outer light-emitting area 124, and a light distribution groove at a position corresponding to each light distribution control LED 123. (131) is formed, and in the center of each light distribution groove 131, a light distribution control plate 130 in which an LED through hole 132 for downwardly exposing the light distribution control LED 123 is opened up and down; includes, and the light distribution groove Reference numeral 131 denotes a multi-light emitting region having a groove shape concave upward so that the light distribution angle θ2 reflected on the inner surface is relatively smaller than the light distribution angle θ1 of the illumination light emitted from the light distribution control LED. Equipped LED floodlight is provided.

본 발명의 다른 특징에 따르면, 상기 중심발광영역(122)에는 외곽발광영역(124)에 배치된 배광조절용 LED(123)보다 상대적으로 많은 수량의 광효율증대용 LED(121)가 배치되는 것을 특징으로 하는 멀티 발광영역이 구비된 LED투광등이 제공된다.According to another feature of the present invention, the central light emitting area 122 is characterized in that a relatively larger number of LEDs 121 for increasing light efficiency are disposed than the light distribution control LEDs 123 disposed in the outer light emitting area 124. There is provided an LED floodlight having a multi-light emitting area.

본 발명의 또 다른 특징에 따르면, 전체 LED 배치수량 중 광효율증대용 LED(121) 배치수량의 배치비율이 60% 내지 80%인 것을 특징으로 하는 멀티 발광영역이 구비된 LED투광등이 제공된다.According to another feature of the present invention, there is provided an LED floodlight provided with a multi-light emitting region, characterized in that the arrangement ratio of the arrangement quantity of the LED 121 for increasing light efficiency among the total LED arrangement quantity is 60% to 80%.

본 발명의 또 다른 특징에 따르면, 상기 PCB(120) 및 배광조절판(130)의 하부를 커버하는 형태로 수평배치되어 테두리가 바디부(110)에 장착되고 투광재질로 이루어져 각 LED(121,123)로부터 발산된 LED광을 투과하는 투광판(140);을 더 포함하며, 상기 투광판(140) 상에서 상기 중심발광영역(122)과 대응되는 위치에는 광효율증대용 LED(121)로부터 하향 발산된 LED광을 산란시키기 위한 요철패턴으로 이루어진 산란부(141)가 형성된 것을 특징으로 하는 멀티 발광영역이 구비된 LED투광등이 제공된다.According to another feature of the present invention, the PCB 120 and the light distribution control plate 130 are disposed horizontally in a form that covers the lower part, and the frame is mounted on the body 110 and made of a light-transmitting material. A floodlight plate 140 that transmits the emitted LED light; further includes, and at a position corresponding to the center light emitting area 122 on the floodlight panel 140, the LED light emitted downward from the LED 121 for increasing light efficiency There is provided an LED floodlight having a multi-light emitting region, characterized in that the scattering portion 141 made of an uneven pattern for scattering the light is formed.

이상에서와 같이 본 발명에 의하면,According to the present invention as described above,

첫째, 바디부(110)는 천장이나 벽면에 고정장착되고, 상기 바디부(110)의 하부에 수평배치되는 PCB(120)는 하부면에 복수 개의 LED(121,123)가 분산배치되되 하부면 상에서 중앙에는 광효율증대용 LED(121)가 배치된 중심발광영역(122)이 마련되며 외곽에는 배광조절용 LED(123)가 배치된 외곽발광영역(124)이 마련되고, 배광조절판(130)은 상기 외곽발광영역(124)과 대응되는 판형상으로 이루어져 외곽발광영역(124)을 커버하는 형태로 PCB(120)의 하부에 수평배치되고 각 배광조절용 LED(123)와 대응되는 위치에는 배광홈(131)이 형성되며 각 배광홈(131)의 중앙에는 배광조절용 LED(123)를 하향 노출시키기 위한 LED관통공(132)이 상하로 개구되며, 상기 배광홈(131)은 내면에 반사된 배광각(θ2)이 상기 배광조절용 LED에서 발산된 조명광의 배광각(θ1)보다 상대적으로 작아지도록 상향 오목하게 함몰된 홈형상을 갖는 것과 같이, PCB(120)의 전체 발광영역이 조명광의 광효율을 증대시키기 위한 중심발광영역(122)과 조명광의 배광각을 조절하기 위한 외곽발광영역(124)으로 구분되어 각각의 LED광을 발광구동함으로써 설정된 배광각으로 조명광이 조사되면서도 요구되는 조명광의 광효율을 확보 가능한 장점이 있다.First, the body part 110 is fixedly mounted on the ceiling or the wall, and the PCB 120 horizontally disposed under the body part 110 has a plurality of LEDs 121 and 123 distributedly disposed on the lower surface, but at the center on the lower surface. A central light-emitting area 122 in which the LED 121 for increasing light efficiency is disposed is provided, and an outer light-emitting area 124 in which the LED 123 for light distribution control is disposed is provided on the outer side, and the light distribution control plate 130 is the outer light-emitting area. It is formed in a plate shape corresponding to the area 124 and is horizontally disposed under the PCB 120 in a form that covers the outer light emitting area 124, and a light distribution groove 131 is located at a position corresponding to each light distribution control LED 123. It is formed, and in the center of each light distribution groove 131, an LED through hole 132 for downwardly exposing the light distribution control LED 123 is opened up and down, and the light distribution groove 131 is a light distribution angle (θ2) reflected on the inner surface. As the entire light emitting area of the PCB 120 has a groove shape that is concave upward so as to be relatively smaller than the light distribution angle θ1 of the illumination light emitted from the light distribution control LED, the entire emission area of the PCB 120 is centered to increase the light efficiency of the illumination light. It is divided into an area 122 and an outer light emitting area 124 for adjusting the distribution angle of the illumination light, and by driving each LED light to emit light, there is an advantage that the required light efficiency of the illumination light can be secured while the illumination light is irradiated at a set distribution angle.

둘째, 상기 중심발광영역(122)에는 외곽발광영역(124)에 배치된 배광조절용 LED(123)보다 상대적으로 많은 수량의 광효율증대용 LED(121)가 배치됨으로써, 조명광의 광효율을 증대시킬 수 있으면서도 LED투광등의 전체적인 크기가 대형화되는 것을 방지할 수 있다.Second, the central light emitting area 122 has a relatively larger quantity of LEDs 121 for increasing light efficiency than the light distribution control LEDs 123 disposed in the outer light emitting area 124, so that the light efficiency of the illumination light can be increased. It can prevent the overall size of the LED floodlight from becoming larger.

셋째, 전체 LED 배치수량 중 광효율증대용 LED(121) 배치수량의 배치비율이 60% 내지 80% 범위 내에서 정해짐으로써, 조명광의 배광각을 100도 미만으로 조절하면서도 조명광의 광효율을 150 lm/W 이상이 되도록 할 수 있다.Third, the arrangement ratio of the number of LEDs 121 for increasing light efficiency among the total number of LEDs is set within the range of 60% to 80%, so that the light efficiency of the illumination light is adjusted to less than 100 degrees while adjusting the light distribution angle of the illumination light to 150 lm/ You can make it more than W.

넷째, 상기 PCB(120) 및 배광조절판(130)의 하부를 커버하는 형태로 수평배치된 투광판(140)은 테두리가 바디부(110)에 장착되고 투광재질로 이루어져 각 LED(121,12)로부터 발산된 LED광을 투과하며, 상기 투광판(140) 상에서 상기 중심발광영역(122)과 대응되는 위치에는 광효율증대용 LED(121)로부터 하향 발산된 LED광을 산란시키기 위한 요철패턴으로 이루어진 산란부(141)가 형성됨으로써 조명광의 중앙부로 광량이 집중되는 것을 방지할 수 있다. 또한, 상기 PCB(120)의 중앙에 상하 개구된 전선공 및 이 전선공으로 인출된 전선이 외부에 시인되는 것을 최소화할 수 있다.Fourth, the light-transmitting plate 140, which is horizontally arranged to cover the lower portion of the PCB 120 and the light distribution control plate 130, has an edge mounted on the body part 110 and is made of a light-transmitting material, each of the LEDs 121 and 12 Scattering consisting of a concave-convex pattern for scattering the LED light emitted downward from the LED 121 for increasing light efficiency at a position corresponding to the central light emitting area 122 on the floodlight panel 140 and transmitting the LED light emitted from Since the portion 141 is formed, it is possible to prevent the amount of light from being concentrated to the central portion of the illumination light. In addition, it is possible to minimize the external visibility of the wire hole opened up and down in the center of the PCB 120 and the wire drawn through the wire hole.

도 1은 일반적으로 LED로부터 발산되는 조명광의 배광각을 나타낸 측단면도,
도 2 및 도 3은 종래기술에 따른 LED 조명장치의 렌즈 구성을 나타낸 분리사시도 및 측단면도,
도 4 내지 도 6은 본 발명의 바람직한 실시예에 따른 멀티 발광영역이 구비된 LED투광등의 구성을 나타낸 사시도, 분리사시도 및 측단면도,
도 7은 본 발명의 바람직한 실시예에 따른 배광홈의 배광각을 나타낸 측단면도,
도 8은 본 발명의 바람직한 실시예에 따른 PCB의 구성을 나타낸 평면도,
도 9 및 도 10은 본 발명의 바람직한 실시예에 따른 배광조절판의 구성을 나타낸 사시도,
도 11은 본 발명의 바람직한 실시예에 따른 PCB의 각 발광영역을 나타낸 평면도,
1 is a side cross-sectional view showing a light distribution angle of illumination light generally emitted from an LED;
2 and 3 are an exploded perspective view and a side cross-sectional view showing a lens configuration of an LED lighting device according to the prior art,
4 to 6 are a perspective view, an exploded perspective view, and a side cross-sectional view showing the configuration of an LED floodlight having a multi-light emitting area according to a preferred embodiment of the present invention.
7 is a side cross-sectional view showing a light distribution angle of a light distribution groove according to a preferred embodiment of the present invention;
8 is a plan view showing the configuration of a PCB according to a preferred embodiment of the present invention,
9 and 10 are perspective views showing the configuration of a light distribution control plate according to a preferred embodiment of the present invention,
11 is a plan view showing each light emitting area of a PCB according to a preferred embodiment of the present invention;

상술한 본 발명의 목적, 특징들 및 장점은 다음의 상세한 설명을 통하여 보다 분명해질 것이다. 이하, 본 발명의 바람직한 실시예를 첨부한 도면에 의거하여 설명하면 다음과 같다.Objects, features, and advantages of the present invention described above will become more apparent through the following detailed description. Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

본 발명의 바람직한 실시예에 따른 멀티 발광영역이 구비된 LED투광등(100)은 PCB의 발광영역이 조명광의 배광각을 조절하기 위한 발광영역과 조명광의 광효율을 증대시키기 위한 발광영역으로 구분되어 설정된 배광각으로 조명광이 조사되면서도 요구되는 조명광의 광효율을 확보가능한 투광등으로서, 도 4 내지 도 6에 도시된 바와 같이 바디부(110), PCB(120) 및 배광조절판(130)을 포함한다.In the LED floodlight 100 provided with a multi-emitting area according to a preferred embodiment of the present invention, the emission area of the PCB is divided into a light-emitting area for adjusting the distribution angle of the illumination light and a light-emitting area for increasing the light efficiency of the illumination light. A floodlight capable of securing the required light efficiency while the illumination light is irradiated at a distribution angle, and includes a body portion 110, a PCB 120 and a light distribution control plate 130 as shown in FIGS. 4 to 6.

먼저, 상기 바디부(110)는 LED투광등(100)의 베이스를 형성하는 부재로서, 상부는 천장이나 벽면에 고정장착되고 하부에는 PCB(120)가 장착되기 위한 장착면 또는 장착공간이 마련된다. 여기서, 상기 바디부(110)의 내부에는 LED(121,123)를 발광구동시키는데 필요한 구동전원을 공급하는 전원공급회로(SMPS)가 장착되고 외부에는 LED(121,123)의 구동열을 방출하기 위한 히트싱크가 장착될 수 있다.First, the body part 110 is a member forming the base of the LED floodlight 100, the upper part is fixedly mounted on the ceiling or wall, and the lower part is provided with a mounting surface or a mounting space for mounting the PCB 120 . Here, a power supply circuit (SMPS) for supplying driving power required for driving the LEDs 121 and 123 is mounted inside the body unit 110, and a heat sink for discharging the driving heat of the LEDs 121 and 123 is installed outside the body unit 110. Can be mounted.

이러한 바디부(110)는 금속재질이나 강화플라스틱 재질로 이루어져 견고한 내구성 및 내식성이 구비되는 것이 바람직하다. 또한, 상기 바디부(110)는 상부에 브라켓이나 연결바가 배치되어 이를 통해 천장이나 벽면 등에 고정될 수 있고 이 밖에 상부가 천장면 내부에 매립된 상태로 고정 장착될 수도 있다.It is preferable that the body portion 110 is made of a metal material or a reinforced plastic material to provide robust durability and corrosion resistance. In addition, the body portion 110 may be fixed to the ceiling or wall through the bracket or connection bar disposed on the upper portion thereof, and may be fixedly mounted while the upper portion is embedded in the ceiling surface.

상기 PCB(120)는 공급되는 구동전원을 LED(121,123)에 인가하기 위한 기판으로서, 상기 바디부(110)의 하부에 수평배치되고 하부면에는 복수 개의 LED(121,123)가 분산배치되되, 도 5 및 도 8에 도시된 바와 같이 하부면 상에서 중앙에는 조명광의 광효율을 증대시키기 위한 광효율증대용 LED(121)가 배치된 중심발광영역(122)이 마련되고, 외곽에는 조명광의 배광각을 조절하기 위한 배광조절용 LED(123)가 배치된 외곽발광영역(124)이 마련된다.The PCB 120 is a substrate for applying the supplied driving power to the LEDs 121 and 123, and is horizontally disposed under the body portion 110, and a plurality of LEDs 121 and 123 are distributedly disposed on the lower surface thereof, FIG. 5 And as shown in FIG. 8, a central light emitting area 122 in which an LED 121 for increasing light efficiency is disposed in the center on the lower surface to increase the light efficiency of the illumination light is provided, and the outer side is provided for adjusting the light distribution angle of the illumination light. An outer light emitting area 124 in which the LED 123 for light distribution control is disposed is provided.

여기서, 도 11에 도시된 바와 같이 상기 외곽발광영역(124)은, PCB(120)의 전체 발광영역 중 최외곽 둘레를 따라 배치되는 제1외곽발광영역(124a) 및, 상기 제1외곽발광영역(124a)의 내측에 직경이 상대적으로 작은 도우넛 형상으로 배치되는 제2외곽발광영역(124b)을 포함하고, 상기 중심발광영역(122)은 제2외곽발광영역(124b)의 내측에 동심원 형태로 배치될 수 있다.Here, as shown in FIG. 11, the outer light-emitting area 124 includes a first outer light-emitting area 124a disposed along the outermost circumference of the entire light-emitting area of the PCB 120, and the first outer light-emitting area. A second outer light-emitting area 124b disposed in a donut shape having a relatively small diameter inside the 124a, and the center light-emitting area 122 is concentrically formed inside the second outer light-emitting area 124b. Can be placed.

더불어, 중심발광영역(122)과 외곽발광영역(124)에는 서로 다른 규격의 LED(121,123)가 배치될 수 있고 제조의 용이성을 고려하여 동일한 규격의 LED(121,123)가 배치될 수도 있다.In addition, LEDs 121 and 123 of different standards may be disposed in the center emission area 122 and the outer emission area 124, and LEDs 121 and 123 of the same standard may be disposed in consideration of ease of manufacture.

상기 배광조절판(130)은 종래의 렌즈(200)를 대신하여 조명광이 설정된 배광각(θ2)으로 조사되도록 하는 부재로서, 도 5, 도 6, 도 9 및 도 10에 도시된 바와 같이 상기 외곽발광영역(124)과 대응되는 판형상으로 이루어져 외곽발광영역(124)을 커버하는 형태로 PCB(120)의 하부에 수평배치되고 각 배광조절용 LED(123)와 대응되는 위치에는 배광홈(131)이 형성되며 각 배광홈(131)의 중앙에는 배광조절용 LED(123)를 하향 노출시키기 위한 LED관통공(132)이 상하로 개구된다.
그리고, 도 5에 도시된 바와 같이 상기 중심발광영역(122)과 대응되는 위치에는 상하로 개구된 개구공(133)이 형성되어 중심발광영역(122)에 배치된 광효율증대용 LED(121)로부터 발산된 LED광이 배광조절판(130)을 거치지 않고 조사된다.
The light distribution control plate 130 is a member that allows illumination light to be irradiated at a set light distribution angle θ2 in place of the conventional lens 200, and as shown in FIGS. 5, 6, 9 and 10, the outer light emission It is formed in a plate shape corresponding to the area 124 and is horizontally disposed under the PCB 120 in a form that covers the outer light emitting area 124, and a light distribution groove 131 is located at a position corresponding to each light distribution control LED 123. It is formed, and in the center of each light distribution groove 131, an LED through hole 132 for downwardly exposing the light distribution control LED 123 is opened up and down.
In addition, as shown in FIG. 5, an opening hole 133 opened up and down is formed at a position corresponding to the center light emitting area 122, and from the LED 121 for increasing light efficiency disposed in the center light emitting area 122. The emitted LED light is irradiated without passing through the light distribution control plate 130.

여기서, 상기 배광홈(131)은 내면에 반사된 배광각(θ2)이 상기 배광조절용 LED에서 발산된 조명광의 배광각(θ1)보다 상대적으로 작아지도록 상향 오목하게 함몰된 홈형상으로 이루어지는 것이 바람직하다.Here, the light distribution groove 131 is preferably made of an upwardly concave groove shape so that the light distribution angle θ2 reflected on the inner surface is relatively smaller than the light distribution angle θ1 of the illumination light emitted from the light distribution control LED. .

또한, 상기 배광홈(131)은 모두 동일한 규격으로 이루어질 수 있고, 배광홈(131)의 내면에 반사된 배광각(θ2)이 서로 다른 규격(형상)으로 이루어져 어느 하나의 규격을 갖는 배광조절판(130)이 PCB(120)에 장착되면서 조명광의 배광범위를 조절할 수도 있다. 이 경우 LED투광등(100)의 용도나 사용장소에 따라 필요한 배광각으로의 변경이 용이하며 사용자의 편의를 증대시킬 수 있다.In addition, the light distribution grooves 131 may all have the same standard, and the light distribution angle θ2 reflected on the inner surface of the light distribution groove 131 has different standards (shapes), and a light distribution control plate having any one standard ( As 130) is mounted on the PCB 120, the light distribution range of the illumination light may be adjusted. In this case, it is easy to change to a necessary light distribution angle according to the purpose or place of use of the LED floodlight 100, and user convenience can be increased.

더불어, 상기 배광홈(131)의 배광각(θ2) 이외에 배광홈(131)이 상향 오목하게 함몰된 깊이(D, 도 7의 확대도 참고)는 서로 다른 복수의 규격으로 이루어져 어느 하나의 규격을 갖는 배광조절판(130)이 PCB(120)에 장착될 수도 있다. In addition, in addition to the light distribution angle θ2 of the light distribution groove 131, the depth at which the light distribution groove 131 is concave upward (D, see the enlarged view of FIG. 7) is composed of a plurality of different standards. The light distribution control plate 130 may be mounted on the PCB 120.

한편, 상기 중심발광영역(122)에는 외곽발광영역(124)에 배치된 배광조절용 LED(123)보다 상대적으로 많은 수량의 광효율증대용 LED(121)가 배치됨으로써, 조명광의 광효율을 증대시킬 수 있으면서도 LED투광등의 전체적인 크기가 대형화되는 것을 방지할 수 있다.On the other hand, by arranging a relatively larger quantity of LEDs 121 for increasing light efficiency than the LEDs 123 for light distribution control disposed in the outer light emitting area 124 in the central light emitting area 122, the light efficiency of the illumination light can be increased while It can prevent the overall size of the LED floodlight from becoming larger.

또한, 상기 광효율증대용 LED(121)와 배광조절용 LED(123)를 포함하는 전체 LED 배치수량 중 광효율증대용 LED(121) 배치수량의 배치비율이 60% 내지 80% 범위 내에서 정해짐으로써, 조명광의 배광각을 100도 미만으로 조절하면서도 조명광의 광효율을 150 lm/W 이상이 되도록 할 수 있다.In addition, the arrangement ratio of the number of LEDs 121 for increasing light efficiency among the total number of LEDs including the LEDs 121 for increasing the light efficiency and the LEDs 123 for controlling light distribution is set within the range of 60% to 80%, While adjusting the distribution angle of the illumination light to less than 100 degrees, the light efficiency of the illumination light can be set to 150 lm/W or more.

예를 들어, 전체 LED 배치수량이 100개 인 경우 80개(배치비율 80%)의 광효율증대용 LED(121)가 중심발광영역(122)에 배치되고 20개(배치비율 20%)의 배광조절용 LED(123)가 외곽발광영역(124)에 배치될 수 있는 것이다.For example, if the total number of LEDs is 100, 80 LEDs 121 for increasing light efficiency (batch ratio 80%) are arranged in the central light emitting area 122, and 20 (batch rate 20%) for light distribution control. The LED 123 may be disposed in the outer light emitting area 124.

여기서, 광효율증대용 LED(121)의 배치비율이 60% 미만인 경우 요구되는 광효율(예를 들어, 150 lm/W)에 도달하기가 제한되며 배치비율이 80% 초과인 경우 중심발광영역(122)의 크기가 커져 대형화되는 문제점이 발생할 수 있다.Here, when the arrangement ratio of the LED 121 for increasing light efficiency is less than 60%, it is limited to reach the required luminous efficiency (for example, 150 lm/W), and when the arrangement ratio is more than 80%, the central light emitting area 122 As the size of the device becomes larger, there may be a problem in that it becomes large.

상술한 바디부(110), PCB(120) 및 배광조절판(130)의 조합된 구성과 같이, PCB(120)의 전체 발광영역이 조명광의 광효율을 증대시키기 위한 중심발광영역(122)과 조명광의 배광각을 조절하기 위한 외곽발광영역(124)으로 구분되어 각각의 LED광을 발광구동함으로써 설정된 배광각으로 조명광이 조사되면서도 요구되는 조명광의 광효율을 확보 가능한 장점이 있다. 또한, 종래의 렌즈(200)가 불필요하므로 다수 개의 렌즈(200)를 각 LED(123) 마다 배치해야 하는 제조시간 및 제조비용을 대폭 절감할 수 있다.Like the combination of the body portion 110, the PCB 120, and the light distribution control plate 130 described above, the entire emission area of the PCB 120 is formed of the central emission area 122 and the illumination light to increase the light efficiency of the illumination light. It is divided into an outer light emitting area 124 for adjusting the light distribution angle, and by driving each LED light to emit light, there is an advantage that it is possible to secure the required light efficiency of the required illumination light while the illumination light is irradiated at a set light distribution angle. In addition, since the conventional lens 200 is unnecessary, manufacturing time and manufacturing cost required to arrange a plurality of lenses 200 for each LED 123 can be greatly reduced.

한편, 도 5 및 도 6에 도시된 바와 같이 본 발명의 바람직한 실시예에 따른 LED투광등(100)는 PCB(120) 및 배광조절판(130)을 외부로부터 보호하기 위한 투광판(140)을 더 포함할 수 있다.On the other hand, as shown in Figures 5 and 6, the LED floodlight 100 according to a preferred embodiment of the present invention further includes a floodlight plate 140 for protecting the PCB 120 and the light distribution control plate 130 from the outside. Can include.

이러한 투광판(140)은 PCB(120) 및 배광조절판(130)의 하부를 커버하는 형태로 수평배치되어 테두리가 바디부(110)에 장착되고 투광재질로 이루어져 각 LED(121,123)로부터 발산된 LED광을 투과한다.The light-transmitting plate 140 is horizontally arranged to cover the lower portion of the PCB 120 and the light distribution control plate 130 so that the edge is mounted on the body part 110 and made of a light-transmitting material. Transmits light.

여기서, 상기 투광판(140) 상에서 중심발광영역(122)과 대응되는 위치에는 광효율증대용 LED(121)로부터 하향 발산된 LED광이 산란하며 투과되도록 요철패턴으로 이루어진 산란부(141)가 형성될 수 있다. 이러한 산란부(141)를 통해 조명광의 중앙부로 광량이 집중되는 것을 방지할 수 있다. 또한, 상기 PCB(120)의 중앙에 상하 개구된 전선공 및 이 전선공으로 인출된 전선이 외부에 시인되는 것을 최소화할 수 있다.Here, a scattering part 141 made of a concave-convex pattern is formed on the transparent plate 140 so that the LED light emitted downward from the LED 121 for increasing light efficiency is scattered and transmitted at a position corresponding to the central light emitting area 122. I can. It is possible to prevent the amount of light from being concentrated to the central portion of the illumination light through the scattering unit 141. In addition, it is possible to minimize the external visibility of the wire hole opened up and down in the center of the PCB 120 and the wire drawn through the wire hole.

이상에서 설명한 본 발명은 전술한 실시예 및 첨부된 도면에 의해 한정되는 것이 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러가지 치환, 변형 및 변경이 가능함은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 명백할 것이다.The present invention described above is not limited by the above-described embodiments and the accompanying drawings, and various substitutions, modifications and changes are possible within the scope of the technical spirit of the present invention. It will be obvious to those who have knowledge.

100...LED투광등 110...바디부
120...PCB 121...광효율증대용 LED
122...중심발광영역 123...배광조절용 LED
124...외곽발광영역 130...배광조절판
131...배광홈 132...LED관통공
140...투광판 141...산란부
100...LED floodlight 110...body part
120...PCB 121...LED for increasing light efficiency
122...Central light emitting area 123...LED for light distribution control
124...Outer light emitting area 130...Light distribution control panel
131...Light distribution groove 132...LED through hole
140...light-panel 141...scattering part

Claims (3)

천장이나 벽면에 고정장착되는 바디부(110); 상기 바디부(110)의 하부에 수평배치되고 하부면에는 복수 개의 LED(121,123)가 분산배치되되 하부면 상에서 중앙에는 광효율증대용 LED(121)가 배치된 중심발광영역(122)이 마련되고 외곽에는 배광조절용 LED(123)가 배치된 외곽발광영역(124)이 마련된 PCB(120); 상기 외곽발광영역(124)과 대응되는 판형상으로 이루어져 외곽발광영역(124)을 커버하는 형태로 PCB(120)의 하부에 수평배치되며 상기 중심발광영역(122)과 대응되는 위치에는 상하로 관통된 개구공(133)이 형성되고 각 배광조절용 LED(123)와 대응되는 위치에는 배광홈(131)이 형성되며 각 배광홈(131)의 중앙에는 배광조절용 LED(123)를 하향 노출시키기 위한 LED관통공(132)이 상하로 개구된 배광조절판(130); 및 상기 PCB(120) 및 배광조절판(130)의 하부를 커버하는 형태로 수평배치되어 테두리가 바디부(110)에 장착되며 투광재질로 이루어져 각 LED(121,123)로부터 발산된 LED광을 투과하는 투광판(140);을 포함하고,
상기 배광홈(131)은 내면에 반사된 배광각(θ2)이 상기 배광조절용 LED에서 발산된 조명광의 배광각(θ1)보다 상대적으로 작아지도록 상향 오목하게 함몰된 홈형상을 가지며,
상기 중심발광영역(122)에는 외곽발광영역(124)에 배치된 배광조절용 LED(123)보다 상대적으로 많은 수량의 광효율증대용 LED(121)가 배치되되, 광효율증대용 LED(121)와 배광조절용 LED(123)를 포함하는 전체 LED 배치수량 중 광효율증대용 LED(121) 배치수량의 배치비율이 60% 내지 80% 범위 내에서 정해지고,
상기 외곽발광영역(124)은, PCB(120)의 전체 발광영역 중 최외곽 둘레를 따라 배치되는 제1외곽발광영역(124a) 및, 상기 제1외곽발광영역(124a)의 내측에 직경이 상대적으로 작은 도우넛 형상으로 배치되는 제2외곽발광영역(124b)을 포함하고, 상기 중심발광영역(122)은 제2외곽발광영역(124b)의 내측에 동심원 형태로 배치되며,
상기 투광판(140) 상에서 중심발광영역(122)과 대응되는 위치에는 광효율증대용 LED(121)로부터 하향 발산된 LED광을 산란시키기 위한 요철패턴으로 이루어진 산란부(141)가 형성된 것을 특징으로 하는 멀티 발광영역이 구비된 LED투광등.
Body portion 110 fixedly mounted on the ceiling or wall; A plurality of LEDs 121 and 123 are disposed horizontally under the body portion 110 and a plurality of LEDs 121 and 123 are distributed on the lower surface, but a central light emitting area 122 in which an LED 121 for increasing light efficiency is disposed is provided in the center on the lower surface, The PCB 120 is provided with an outer light emitting area 124 in which the light distribution control LED 123 is disposed; It is formed in a plate shape corresponding to the outer light-emitting area 124 and is horizontally disposed under the PCB 120 to cover the outer light-emitting area 124 and penetrates vertically at a position corresponding to the center light-emitting area 122 An opening hole 133 is formed, a light distribution groove 131 is formed at a position corresponding to each light distribution control LED 123, and an LED for downwardly exposing the light distribution control LED 123 at the center of each light distribution groove 131 Light distribution control plate 130 in which the through hole 132 is opened up and down; And it is horizontally arranged to cover the lower part of the PCB 120 and the light distribution control plate 130, and the frame is mounted on the body part 110 and is made of a light-transmitting material to transmit the LED light emitted from each of the LEDs 121 and 123. Including; plate 140;
The light distribution groove 131 has an upwardly concave groove shape such that the light distribution angle θ2 reflected on the inner surface thereof is relatively smaller than the light distribution angle θ1 of the illumination light emitted from the light distribution control LED,
In the center light-emitting area 122, a relatively larger quantity of LEDs 121 for increasing light efficiency than the LEDs 123 for light distribution control disposed in the outer light-emitting area 124 are disposed, and the LED 121 for increasing light efficiency and the light distribution control are The batch ratio of the batch quantity of the LED 121 for increasing light efficiency among the total LED batch quantity including the LED 123 is set within the range of 60% to 80%,
The outer light-emitting area 124 has a first outer light-emitting area 124a disposed along the outermost circumference of the entire light-emitting area of the PCB 120 and a diameter of the first outer light-emitting area 124a. And a second outer light-emitting area 124b arranged in a small donut shape, and the center light-emitting area 122 is disposed in a concentric circle shape inside the second outer light-emitting area 124b,
A scattering portion 141 formed of a concave-convex pattern for scattering the LED light emitted downward from the LED 121 for increasing light efficiency is formed on the transparent plate 140 at a position corresponding to the central light emitting area 122 LED floodlight equipped with multi-emitting areas.
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KR1020200080554A 2020-06-30 2020-06-30 Led flood light with multi lighting area KR102241426B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160111132A (en) * 2015-03-16 2016-09-26 엘지전자 주식회사 Lighting apparatus
KR101741160B1 (en) * 2015-03-19 2017-05-31 주식회사 케이엠더블유 LED lighting device
KR200486216Y1 (en) 2016-12-02 2018-04-16 이미옥 LED light module having a protect case
KR102111440B1 (en) * 2019-10-30 2020-05-18 주식회사 바이더엠 Lighting apparatus with light distribution control function

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160111132A (en) * 2015-03-16 2016-09-26 엘지전자 주식회사 Lighting apparatus
KR101741160B1 (en) * 2015-03-19 2017-05-31 주식회사 케이엠더블유 LED lighting device
KR200486216Y1 (en) 2016-12-02 2018-04-16 이미옥 LED light module having a protect case
KR102111440B1 (en) * 2019-10-30 2020-05-18 주식회사 바이더엠 Lighting apparatus with light distribution control function

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