KR20070029429A - Head lamp for vehicle - Google Patents

Head lamp for vehicle Download PDF

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Publication number
KR20070029429A
KR20070029429A KR1020050084205A KR20050084205A KR20070029429A KR 20070029429 A KR20070029429 A KR 20070029429A KR 1020050084205 A KR1020050084205 A KR 1020050084205A KR 20050084205 A KR20050084205 A KR 20050084205A KR 20070029429 A KR20070029429 A KR 20070029429A
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KR
South Korea
Prior art keywords
led module
housing
heat
vehicle
substrate
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KR1020050084205A
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Korean (ko)
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KR100706353B1 (en
Inventor
최성욱
이종헌
이양기
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현대자동차주식회사
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Priority to KR1020050084205A priority Critical patent/KR100706353B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • F21S45/48—Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode

Abstract

A head lamp for a vehicle is provided to radiate rapidly heat generated from an LED module to the outside of the LED module by modifying a structure thereof. An LED module(10) includes a substrate and a plurality of LEDs arranged on the substrate. A housing(20) includes an open front side in order to receive the LED module. A radiating pin(35) is installed in the inside of the housing and comes in contact with the LED module in order to disperse the heat of the LED module. One end of a heat pipe(40) comes in contact with the LED module. The other end of the heat pipe is exposed to the outside of the housing in order to radiate the heat of the LED module. A heat transmission member(50) is installed at the housing and includes a metal layer and an air layer.

Description

자동차의 헤드램프{HEAD LAMP FOR VEHICLE}Headlamps for Vehicles {HEAD LAMP FOR VEHICLE}

도 1은 본 발명에 따른 자동차의 헤드램프를 도시한 전방 사시도이고, 1 is a front perspective view showing a headlamp of a vehicle according to the present invention;

도 2는 도 1의 내부를 도시한 후방 사시도이고, FIG. 2 is a rear perspective view of the interior of FIG. 1;

도 3은 도 1의 A 구성의 평면도이고,3 is a plan view of the A configuration of FIG. 1,

도 4는 도 1의 단면도이고, 4 is a cross-sectional view of FIG. 1,

도 5는 본 발명에 따른 자동차의 헤드램프에서 열전달부재를 나타낸 단면도이다. 5 is a cross-sectional view showing a heat transfer member in a head lamp of a vehicle according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings

1 : 헤드램프 10 : LED 모듈1: Headlamp 10: LED Module

11 : 기판 12, 13, 14, 15 : LED11: substrate 12, 13, 14, 15: LED

20 : 하우징 30 : 렌즈20 housing 30 lens

35 : 방열핀 40, 41, 42 : 히트 파이프35: heat radiating fins 40, 41, 42: heat pipe

50 : 열전달부재 51, 52 : 금속층50: heat transfer member 51, 52: metal layer

53 : 공기층 60 : 렌즈 모듈53: air layer 60: lens module

80 : 히트 싱크 90, 91 : 결합편80: heat sink 90, 91: bonding piece

본 발명은, 자동차의 헤드램프에 관한 것으로서, 보다 상세하게는, LED 모듈에서 발생된 열을 신속히 방출할 수 있는 자동차의 헤드램프에 관한 것이다.The present invention relates to a headlamp of a motor vehicle, and more particularly, to a headlamp of a motor vehicle capable of quickly dissipating heat generated by an LED module.

일반적으로 자동차의 등화장치는 대상물을 보기 위한 목적으로 하는 조명기능과, 다른 자동차나 기타 도로 이용자에게 자기 자동차의 주행상태를 알리는 것을 목적으로 하는 지시, 신호, 경고기능 장식기능 등으로 사용되는 바, 특히 헤드램프는 자동차의 배터리에 접속된 배선을 통해 전기를 인가받아 야간 주행시 운전자의 시야를 확보할 수 있도록 전방 부위에 차폭을 따라 양측에 설치되어 있다. In general, the car's lighting device is used as a lighting function for the purpose of viewing an object, and an indication, signal, warning function decoration function for the purpose of informing other cars or other road users of the driving condition of the vehicle. In particular, the headlamps are installed at both sides along the width of the vehicle in front of the vehicle to secure the driver's vision when driving at night by receiving electricity through wires connected to the battery of the vehicle.

통상 헤드램프나 리어 콤비네이션 램프 등은 광원으로서 벌브(Bulb)를 사용하고 있으나, 벌브는 사용 수명이 짧고 내충격성이 떨어지므로 근래에 들어 사용수명이 길면서도 내충격성이 뛰어난 고휘도의 LED를 광원으로 사용하는 추세에 있다. Normally, head lamps and rear combination lamps use bulbs as light sources, but bulbs have a short service life and low impact resistance, so they have recently used high-brightness LEDs with long life and excellent impact resistance. Is in the trend.

이러한 고휘도의 LED가 적용되는 헤드 램프는 LED 점등시 매우 높은 열이 발생하므로, LED 주위의 부품들이 열변형되어 헤드 램프의 내구성을 떨어뜨리는 문제점이 있다. Since the head lamp to which the high-brightness LED is applied generates very high heat when the LED is turned on, components around the LED are thermally deformed, thereby degrading the durability of the head lamp.

따라서, LED에서 발생된 고열을 외부로 방출시킬 수 있는 방열장치에 대한 필요성이 대두되고 있다. Therefore, there is a need for a heat dissipation device capable of emitting high heat generated from the LED to the outside.

따라서, 본 발명의 목적은, LED 모듈에서 발생된 열이 외부로 신속히 방출될 수 있는 자동차의 헤드램프를 제공하는 것이다. Accordingly, it is an object of the present invention to provide a headlamp of a vehicle in which heat generated in an LED module can be quickly released to the outside.

상기 목적은, 본 발명에 따라, 기판과, 상기 기판 상에 배열된 복수의 LED를 갖는 LED 모듈과; 전방이 개구되고 상기 LED 모듈을 수용하는 하우징과; 상기 하우징 내부에 마련되어 상기 LED 모듈과 접촉하여 상기 LED 모듈에서 발생된 열을 분산시키는 방열 핀과; 일단이 상기 LED 모듈과 접촉하고 타단이 상기 하우징 외측으로 노출되어 상기 LED 모듈에서 발생된 열을 외부로 방출시키는 히트 파이프와; 상기 LED 모듈과 인접하게 상기 하우징에 장착되며, 금속층 및 공기층으로 이루진 열전달부재에 의해 달성된다.The object is, according to the present invention, an LED module having a substrate and a plurality of LEDs arranged on the substrate; A housing having a front opening and accommodating the LED module; A heat dissipation fin provided in the housing and in contact with the LED module to dissipate heat generated by the LED module; A heat pipe having one end in contact with the LED module and the other end exposed outside the housing to discharge heat generated from the LED module to the outside; Mounted in the housing adjacent to the LED module, it is achieved by a heat transfer member consisting of a metal layer and an air layer.

여기서, 상기 열전달부재의 금속층은 구리를 포함하여 다층으로 적층되며, 금속층 사이에 공기층이 형성된 것이 바람직하다.Here, the metal layer of the heat transfer member is laminated in multiple layers, including copper, it is preferable that the air layer is formed between the metal layer.

이하에서는 첨부도면을 참조하여 본 발명에 대해 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 자동차의 헤드램프를 도시한 전방 사시도이고, 도 2는 도 1의 내부를 도시한 후방 사시도이고, 도 3은 도 1의 A 구성의 평면도이고, 도 4는 도 1의 단면도이다. 이들 도면에 도시된 바와 같이, 본 발명에 따른 자동차의 헤드램프(1)는 기판(11)과 기판(11) 상에 배열된 복수의 LED(12, 13, 14, 15)를 갖는 LED 모듈(10)과, 전방이 개구되고 LED 모듈(10)을 수용하는 하우징(20)과, 하우징(20) 내부에 마련되어 LED 모듈(10)과 접촉하는 방열 핀(35)과, 일단이 LED 모듈(10)과 접촉하고 타단이 하우징(20) 외측으로 노출된 히트 파이프(40, 41, 42)와, LED 모듈(10)과 인접하게 장착되어 하우징(20)에 장착되며 금속층(51, 52) 및 공기층(53)으로 이루어진 열전달부재(50)를 포함한다. 1 is a front perspective view showing a headlamp of a vehicle according to the present invention, Figure 2 is a rear perspective view showing the inside of Figure 1, Figure 3 is a plan view of the A configuration of Figure 1, Figure 4 is a It is a cross section. As shown in these figures, the headlamp 1 of a motor vehicle according to the present invention comprises an LED module having a substrate 11 and a plurality of LEDs 12, 13, 14, 15 arranged on the substrate 11. 10), a housing 20 having a front opening and accommodating the LED module 10, a heat dissipation fin 35 provided inside the housing 20 to contact the LED module 10, and one end of the LED module 10. Heat pipes 40, 41 and 42 in contact with the other end and exposed to the outside of the housing 20, and adjacent to the LED module 10, are mounted to the housing 20, and are provided with the metal layers 51, 52 and the air layer. And a heat transfer member 50 composed of 53.

하우징(20)은 대략 "⊃"형상으로 마련되며, 그 내부 공간에 LED 모듈(10)이 수용된다. The housing 20 is provided in a substantially "⊃" shape, and the LED module 10 is accommodated in the inner space.

하우징(20)의 전방에는 복수의 LED(12, 13, 14, 15)에서 발산된 빛이 전방으로 조사되도록 투과시키는 렌즈(30)가 장착되어 있다. The front of the housing 20 is mounted with a lens 30 for transmitting so that the light emitted from the plurality of LEDs (12, 13, 14, 15) is irradiated forward.

LED 모듈(10)에는 LED 모듈(10)의 유동을 저지하도록 하우징(20)에 LED 모듈(10)을 지지하는 지지브래킷(70)이 설치되어 있다. The LED module 10 is provided with a support bracket 70 for supporting the LED module 10 in the housing 20 to block the flow of the LED module 10.

LED(12, 13, 14, 15)는 기판(11) 상에 일정한 간격으로 배열되어 있다. 한편, LED 모듈(10)의 전방에는 각 LED(12, 13, 14, 15)와 대응하여 복수의 렌즈(62, 63, 64, 65)가 배열된 렌즈 모듈(60)이 장착되어 있다. The LEDs 12, 13, 14, 15 are arranged on the substrate 11 at regular intervals. Meanwhile, in front of the LED module 10, a lens module 60 in which a plurality of lenses 62, 63, 64, and 65 are arranged corresponding to each of the LEDs 12, 13, 14, and 15 is mounted.

렌즈 모듈(60)은 각 LED(12, 13, 14, 15)의 배열과 대응하게 마련된 복수의 렌즈(62, 63, 64, 65)와, 각 렌즈(62, 63, 64, 65)를 지지하는 지지판(61)으로 구성된다. The lens module 60 supports a plurality of lenses 62, 63, 64, and 65 provided in correspondence with the arrangement of the LEDs 12, 13, 14, and 15, and each lens 62, 63, 64, and 65. It consists of the support plate 61 which does.

각 렌즈(62, 63, 64, 65)는 반구 형상으로 마련되어 각 LED(12, 13, 14, 15)로부터 발산된 빛을 확산시키는 기능을 한다. Each lens 62, 63, 64, 65 has a hemispherical shape and functions to diffuse light emitted from each of the LEDs 12, 13, 14, 15.

기판(11)의 배면에는 히트 파이프(40, 41, 42)의 일단이 끼워지는 끼움홈(미도시)이 형성되어 있고, 하우징(20)의 상부면에는 히트 파이프(40, 41, 42)의 타단이 관통되는 관통공(미도시)이 형성되어 있다. 한편, 하우징(20)의 상부면에는 금속층(51, 52) 및 공기층(53)으로 이루어진 열전달부재(50)가 장착되어 있다. The back surface of the substrate 11 is provided with fitting grooves (not shown) to which one end of the heat pipes 40, 41, and 42 are fitted, and the top surface of the housing 20 has the heat pipes 40, 41, and 42. A through hole (not shown) through which the other end penetrates is formed. Meanwhile, the heat transfer member 50 including the metal layers 51 and 52 and the air layer 53 is mounted on the upper surface of the housing 20.

히트 파이프(40, 41, 42)는 복수개로 마련되며, 각 단부에는 복수의 히트 파이프(40, 41, 42)를 삽입 지지하여 기판(11)에 결합시키는 결합편(90, 91)이 설치되어 있다. The heat pipes 40, 41, and 42 are provided in plural, and coupling pieces 90 and 91 for inserting and supporting the plurality of heat pipes 40, 41, and 42 at each end are coupled to the substrate 11. have.

히트 파이프(40, 41, 42)의 타단에는 히트 싱크(80)가 결합되어 있어 LED 모듈(10)로부터 전도된 열의 분산 면적을 넓힘으로써 열을 신속히 외부로 방출시키는 히트 싱크(80)가 장착되어 있다. Heat sinks 80 are coupled to the other ends of the heat pipes 40, 41, and 42 so that the heat sinks 80 are quickly dissipated to the outside by widening the dispersion area of the heat conducted from the LED module 10. have.

도 5에 도시된 바와 같이, 열전달부재(50)는 일명 플렉서블 레이어라고 일컬으며, 판 형상으로 마련되어 하우징(20)의 상부면에 장착된다. 열전달부재(50)는 코어를 중심으로 상하부면은 구리코일(51)이 입혀지고, 구리코일(51)의 내측에 구리(52)를 포함한 여러 종류의 열전도 물질을 가지고 있다. 이에, LED 모듈(10)에서 발생된 열은 방열 핀(35)에 의해 일부 내부에서 분산되고 히트 파이프(40, 41, 42) 및 열전달부재(50)를 통해 외부로 신속히 방출될 수 있다. 한편, 열전달부재(50)의 공기층(53)에 의해 외부의 열이 하우징(20) 내로 유입되는 것이 방지될 수 있다. As shown in FIG. 5, the heat transfer member 50 is called a flexible layer and is provided in a plate shape and mounted on the upper surface of the housing 20. The heat transfer member 50 has a copper coil 51 coated on the upper and lower surfaces of the core, and has various kinds of heat conductive materials including copper 52 inside the copper coil 51. Accordingly, heat generated in the LED module 10 may be dispersed in a part inside by the heat dissipation fin 35 and may be quickly released to the outside through the heat pipes 40, 41, and 42 and the heat transfer member 50. On the other hand, by the air layer 53 of the heat transfer member 50 it can be prevented that the external heat flows into the housing 20.

여기서, 열전달부재(50)의 공기층(53)은 각 금속층(51, 52)을 적층한 후 공기를 주입하여 형성되며, 공지된 범위 내의 제작방법으로 다양하게 형성할 수 있을 것이다. Here, the air layer 53 of the heat transfer member 50 is formed by injecting air after stacking the respective metal layers 51 and 52, and may be variously formed by a manufacturing method within a known range.

이상 설명한 바와 같이, 본 발명에 따르면, LED 모듈에서 발생된 열이 외부로 신속히 방출될 수 있는 자동차의 헤드램프를 제공한다. As described above, according to the present invention, there is provided a head lamp of a vehicle in which heat generated in the LED module can be quickly released to the outside.

Claims (2)

기판과, 상기 기판 상에 배열된 복수의 LED를 갖는 LED 모듈과; An LED module having a substrate and a plurality of LEDs arranged on the substrate; 전방이 개구되고 상기 LED 모듈을 수용하는 하우징과; A housing having a front opening and accommodating the LED module; 상기 하우징 내부에 마련되어 상기 LED 모듈과 접촉하여 상기 LED 모듈에서 발생된 열을 분산시키는 방열 핀과; A heat dissipation fin provided in the housing and in contact with the LED module to dissipate heat generated by the LED module; 일단이 상기 LED 모듈과 접촉하고 타단이 상기 하우징 외측으로 노출되어 상기 LED 모듈에서 발생된 열을 외부로 방출시키는 히트 파이프와; A heat pipe having one end in contact with the LED module and the other end exposed outside the housing to discharge heat generated from the LED module to the outside; 상기 LED 모듈과 인접하게 상기 하우징에 장착되며, 금속층 및 공기층으로 이루진 열전달부재를 포함하는 것을 특징으로 하는 자동차의 헤드램프.And a heat transfer member mounted to the housing adjacent to the LED module and including a metal layer and an air layer. 제1항에 있어서,The method of claim 1, 상기 열전달부재의 금속층은 구리를 포함하여 다층으로 적층되며, 금속층 사이에 공기층이 형성된 것을 특징으로 하는 자동차의 헤드램프. The metal layer of the heat transfer member is laminated in multiple layers including copper, the headlamp of the vehicle, characterized in that the air layer is formed between the metal layer.
KR1020050084205A 2005-09-09 2005-09-09 Head lamp for vehicle KR100706353B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100778106B1 (en) * 2006-06-30 2007-11-22 한국광기술원 Device system for protection against heat in automotive led head-lamp
US8047694B2 (en) 2008-05-07 2011-11-01 Hyundai Motor Company Adaptive front light system having high heat-dissipation efficiency

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100778106B1 (en) * 2006-06-30 2007-11-22 한국광기술원 Device system for protection against heat in automotive led head-lamp
US8047694B2 (en) 2008-05-07 2011-11-01 Hyundai Motor Company Adaptive front light system having high heat-dissipation efficiency

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