KR20160134028A - 고분자를 이용한 led 조명기구의 방열장치 - Google Patents
고분자를 이용한 led 조명기구의 방열장치 Download PDFInfo
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- KR20160134028A KR20160134028A KR1020150067398A KR20150067398A KR20160134028A KR 20160134028 A KR20160134028 A KR 20160134028A KR 1020150067398 A KR1020150067398 A KR 1020150067398A KR 20150067398 A KR20150067398 A KR 20150067398A KR 20160134028 A KR20160134028 A KR 20160134028A
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- heat
- heat sink
- led
- sink
- led chip
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Images
Classifications
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- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
-
- 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
- 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
- F21K9/90—Methods of manufacture
-
- 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
-
- F21V29/004—
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/87—Organic material, e.g. filled polymer composites; Thermo-conductive additives or coatings therefor
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/89—Metals
-
- H01L33/641—
-
- H01L33/642—
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Led Device Packages (AREA)
Abstract
Description
도 2는 본 발명의 실시 예에 따른 고분자를 이용한 LED 조명기구의 방열장치에 대한 FR-4 PCB의 구조를 나타낸 도면
도 3은 본 발명의 실시 예에 따른 고분자를 이용한 LED 조명기구의 방열장치에 대한 LED 패키지의 히트싱크 제조 공정을 나타낸 도면
도 4는 본 발명의 실시 예에 따른 고분자를 이용한 LED 조명기구의 방열장치에 대한 LED 패키지의 구성 전체를 나타낸 도면
도 5는 본 발명의 실시 예에 따른 고분자를 이용한 LED 조명기구의 방열장치에 대한 (a)다수개의 LED 칩이 실장된 FR-4 PCB 전도판의 열 흐름 경로와 (b)열화상 카메라로 촬영한 열온도 분포를 나타낸 도면
도 6은 본 발명의 바람직한 실시 예에 따른 고분자를 이용한 LED 조명기구의 방열장치에 대한 그래핀 기판에 성장된 그래핀 나노-월(Graphene Nano-Wall)의 (a)성장 전, (b)성장 후의 모습을 나타낸 도면
도 7은 상기 도 6에 대한 그래핀 나노-월의 표면 형상을 라만 스펙트럼으로 분석한 결과를 나타낸 그래프
도 8은 본 발명의 실시 예에 따른 고분자를 이용한 LED 조명기구의 방열장치에 대한 주위 온도 26~27[℃]에서 그래핀 기판을 사용한 열전도도를 실험한 결과를 나타낸 그래프
도 9는 본 발명의 실시 예에 따른 고분자를 이용한 LED 조명기구의 방열장치에 대한 측정기의 감도(K-팩터)를 나타낸 그래프
도 10은 본 발명의 실시 예에 따른 고분자를 이용한 LED 조명기구의 방열장치에 대한 LED 패키지의 접합부 온도 측정결과를 나타낸 그래프
도 11은 본 발명의 실시 예에 따른 고분자를 이용한 LED 조명기구의 방열장치에 대한 주변 온ㆍ습도에 따른 LED 패키지 열저항을 나타낸 그래프
101 : 에폭시 층 102 : 상부 동 박막
103 : 하부 동박막 104 : 동 박막(지름 0.07mm)
110 : LED 칩 120 : 스루 홀
130 : 비아 홀 140 : 2차 광학렌즈
200 : 제1 히트싱크
300 : 그래핀 기판
400 : 제2 히트싱크
Claims (3)
- LED 조명기구의 방열 장치에 있어서,
상기 방열장치는 하나 이상의 LED 칩(110)이 직렬회로로 구성되어 SMT(Surface Mount Technology)로 실장시키며, 상기 LED 칩의 방열구에서 발열되는 고열을 대형 방열기구로 전도시키기 위한 제1 히트싱크를 실장 시키기 위한 스루 홀(Through-hole,120)을 갖는 이중층 인쇄회로기판(FR-4 PCB,100)과;
상기 이중층 인쇄회로기판의 스루 홀에 나노 다이아몬드 파우더(Nano Diamond Powder)와 메탈(Metal)을 전도성 고분자(Conductive Polymers)로 혼합시킨 입자가 작은 열전도체(Thermal Conductor)를 갖는 제1 히트싱크(First Heat Sink,200)와;
상기 제1 히트싱크의 상부는 상기 LED 칩 방열구와 접촉되고, 상기 제1 히트싱크의 하부는 제2 히트싱크와 접촉되어 상기 제1 히트싱크부터 전도된 고열을 상기 제2 히트싱크로 전도ㆍ확산시키는 그래핀 기판(Graphene Substrate,300)과;
상기 그래핀 기판으로부터 전도ㆍ확산된 열을 자연대류 방식에 의해 냉각시키는 알루미늄 재질의 메탈 폼(Metal Foam)을 라디에이터(Radiator) 구조로 성형 제작한 대형 방열기구인 제2 히트싱크(Second Heat Sink,400)를 포함하는 것을 특징으로 하는 고분자를 이용한 LED 조명기구의 방열장치.
- 제1항에 있어서,
상기 제1 히트싱크(200)는, 나노 다이아몬드 파우더(Nano Diamond Powder) 4%중량과 메탈(Metal) 1%중량을 전도성 고분자(Conductive Polymers)로 혼합시킨 후, 100[℃]에서 5시간 동안 열처리시킨 열전도체인 것을 특징으로 하는 고분자를 이용한 LED 조명기구의 방열장치.
- 제1항에 있어서,
상기 고분자를 이용한 LED 조명기구의 방열장치에 대한 열저항 측정부위는, 상기 제1 히트싱크(200)와 알루미늄 재질의 대형 방열기구가 접촉되는 그래핀 기판(300)을 갖는 제2 히트싱크(400)의 접합부이며, 열저항 값은 주변온도 25[℃]에서 9.10[K/W]인 것을 특징으로 하는 고분자를 이용한 LED 조명기구의 방열장치.
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KR20130079617A (ko) * | 2011-11-09 | 2013-07-10 | 동광 킹선 옵토일렉트로닉 컴퍼니 리미티드 | 고전력 led 방열판 구조의 제조 과정 |
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KR20100022562A (ko) * | 2008-08-20 | 2010-03-03 | 주식회사 반디라이트 | Led 램프의 방열구조 |
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KR20130079617A (ko) * | 2011-11-09 | 2013-07-10 | 동광 킹선 옵토일렉트로닉 컴퍼니 리미티드 | 고전력 led 방열판 구조의 제조 과정 |
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