KR100372457B1 - a heat radiating structure of head lamp for vehicles - Google Patents

a heat radiating structure of head lamp for vehicles Download PDF

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Publication number
KR100372457B1
KR100372457B1 KR10-2000-0084424A KR20000084424A KR100372457B1 KR 100372457 B1 KR100372457 B1 KR 100372457B1 KR 20000084424 A KR20000084424 A KR 20000084424A KR 100372457 B1 KR100372457 B1 KR 100372457B1
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South Korea
Prior art keywords
heat dissipation
housing
heat
head lamp
dissipation tube
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KR10-2000-0084424A
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Korean (ko)
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KR20020055070A (en
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김진희
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현대자동차주식회사
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40Cooling of lighting devices
    • F21S45/42Forced cooling
    • F21S45/43Forced cooling using gas
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00Exterior vehicle lighting devices for illuminating purposes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10Use or application of lighting devices on or in particular types of vehicles for land vehicles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

본 발명은 자동차용 헤드램프의 방열구조에 관한 것으로, 전구(3)의 주변에 금속재질로 이루어진 ⊂형상의 방열관(5)이 설치되고, 이 방열관(5)의 상단은 하우징(1)의 후방 상부외측으로 연장되며 하단은 하우징(1)의 후방 하부외측으로 연장되는 구조로 이루어져 있다.The present invention relates to a heat dissipation structure of a headlamp for an automobile, wherein a heat sink (5) having a metal shape is installed around a light bulb (3), and the upper end of the heat dissipation tube (5) is a housing (1). The rear of the upper portion is extended to the outside and the lower portion is made of a structure extending to the rear lower outer portion of the housing (1).

따라서, 외기가 직접 방열관(5)의 고온부에 접하게 되어 방열효율이 좋으며, 또한 방열관(5) 내부에서 대류작용이 일어나 저온의 외기가 지속적으로 방열관(5)의 고온부에 접하게 되므로 더욱 많은 양의 내부열을 외부로 방출할 수 있게 됨으로써 헤드램프의 내열성이 향상되는 효과가 있다.Therefore, the outside air is directly in contact with the high temperature portion of the heat dissipation tube 5, the heat dissipation efficiency is good, and the convection action occurs inside the heat dissipation tube 5, so that the low temperature outside air is continuously in contact with the high temperature portion of the heat dissipation tube 5 Since the internal heat can be discharged to the outside, the heat resistance of the head lamp is improved.

또한, 헤드램프 내부의 수분이 상기 방열관(5) 표면에 응결됨으로써 렌즈(2)의 표면이 수분응결로 인해 흐려지는 현상을 방지할 수 있게 되는 또 다른 장점도 있다.In addition, the moisture inside the head lamp is condensed on the surface of the heat dissipation tube (5) has another advantage that the surface of the lens 2 can be prevented from clouding due to moisture condensation.

Description

자동차용 헤드램프의 방열구조{a heat radiating structure of head lamp for vehicles}Heat radiating structure of head lamp for vehicles}

본 발명은 자동차용 헤드램프의 방열구조에 관한 것으로, 특히 방열면적이 증가되고 대류작용을 이용하게 됨으로써 보다 효과적으로 헤드램프 내부의 열을 방출할 수 있도록 된 자동차용 헤드램프의 방열구조에 관한 것이다.The present invention relates to a heat dissipation structure of a headlamp for a vehicle, and more particularly, to a heat dissipation structure of a headlamp for a vehicle, which is capable of dissipating heat inside the headlamp more effectively by increasing the heat dissipation area and using convection.

일반적으로 헤드램프는 자동차에 사용되는 여러 램프 중에서도 가장 크기가크고, 아울러 밝은 빛을 내도록 된 고용량의 것으로서, 사용상태에서 헤드램프의 내부는 항상 전구에서 발생되는 열에 의해 가열되어 고온 상태가 된다.In general, the headlamp is the largest among the various lamps used in automobiles, and also has a high capacity to emit bright light. In use, the interior of the headlamp is always heated to a high temperature by heat generated from a light bulb.

이러한 열을 방출하지 않고 내버려 둘 경우 헤드램프를 구성하는 부품들에 열변형을 가져오게 되므로 결과적으로 헤드램프의 내구성에 좋지 않은 영향을 주게 된다.If left unheated, heat distortion will occur in the components that make up the headlamp, which in turn adversely affects the durability of the headlamp.

따라서, 헤드램프에는 내부의 열을 외부로 방출하여 헤드램프의 내구성에 악영향을 주지 않을 정도의 온도로 유지시키기 위하여 방열구조가 적용되어 있다.Therefore, the heat dissipation structure is applied to the head lamp to maintain the temperature at a level that does not adversely affect the durability of the head lamp by dissipating the heat inside.

도 1은 종래의 방열구조가 적용된 헤드램프의 단면도로서, 일반적으로 헤드램프는 하우징(1)과, 이 하우징(1)의 전면에 장착된 렌즈(2)와, 상기 하우징(1)의 후측 중앙에 설치된 전구(3)로 이루어지며, 방열핀(4)이 전구(3)의 주변에 설치되되 이 방열핀(4)의 일단은 상기 하우징(1)을 통하여 외부로 연장되어 있다.1 is a cross-sectional view of a head lamp to which a conventional heat dissipation structure is applied. In general, the head lamp includes a housing 1, a lens 2 mounted on the front of the housing 1, and a rear center of the housing 1. It consists of a light bulb (3) installed in, the heat dissipation fin (4) is installed around the light bulb (3) one end of the heat dissipation fin (4) is extended to the outside through the housing (1).

따라서, 전구(3)에서 발생된 고온의 열이 방열핀(4)을 통해 전도되어 외부로 방출되도록 되어 있다.Therefore, the high temperature heat generated by the light bulb 3 is conducted through the heat radiating fin 4 to be released to the outside.

그러나, 상기 방열핀(4)은 하우징(1)의 외측으로 전도된 열만 하우징(1) 외측의 방열핀(4) 면적에서 대기로 방출되는 것이므로 그 방열효율이 좋지 못하여 헤드램프 내부의 열을 효과적으로 발산하지 못한다는 문제점이 있었다.However, since only the heat conducted to the outside of the housing 1 is radiated to the atmosphere from the area of the heat radiating fin 4 outside the housing 1, the heat dissipation fin 4 does not radiate heat effectively inside the head lamp due to poor heat dissipation efficiency. There was a problem.

또한, 상기 방열구조와는 상관없이 헤드램프에는 내부의 습기가 렌즈의 표면에 응결되어 렌즈가 흐려지는 문제점도 있었다.In addition, irrespective of the heat dissipation structure, there is a problem in the head lamp that the internal moisture condenses on the surface of the lens and the lens is blurred.

이에 본 발명은 상기와 같은 문제점을 해결하기 위하여 발명된 것으로, 보다많은 양의 열을 외부로 방출하여 헤드램프 내부의 온도를 효과적으로 낯출 수 있으며, 렌즈 이외의 수분 응결장소를 제공함으로써 렌즈의 표면에 수분이 응결되어 렌즈가 흘려지는 것을 방지할 수 있도록 된 자동차용 헤드램프의 방열구조를 제공함에 그 목적이 있다.Accordingly, the present invention has been invented to solve the above problems, by discharging a greater amount of heat to the outside can effectively reduce the temperature inside the headlamp, by providing a moisture condensation place other than the lens on the surface of the lens It is an object of the present invention to provide a heat dissipation structure of a headlamp for a vehicle that can prevent moisture from condensing and flowing the lens.

도 1은 종래 기술에 따른 자동차용 헤드램프의 방열구조가 적용된 헤드램프의 단면도,1 is a cross-sectional view of a head lamp to which a heat dissipation structure of a head lamp for a vehicle according to the prior art is applied;

도 2는 본 발명에 따른 자동차용 헤드램프의 방열구조가 적용된 헤드램프의 단면도이다.2 is a cross-sectional view of a head lamp to which a heat dissipation structure of a head lamp for a vehicle according to the present invention is applied.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1 : 하우징, 2 : 렌즈,1: housing, 2: lens,

3 : 전구, 4 : 방열핀,3: bulb, 4: heat sink,

5 : 방열관, 6 : 쉴드.5: heat sink, 6: shield.

상기와 같은 목적을 달성하기 위한 본 발명은, 헤드램프 내부의 전구 앞쪽에 설치된 쉴드 뒷면에 금속재질의 방열관을 설치하되, 이 방열관의 한쪽 단부는 하우징의 상부외측으로 연장되고 다른 한쪽 단부는 하우징의 하부외측으로 연장되어진 구조로 이루어져 있다.In order to achieve the above object, the present invention provides a heat dissipation tube made of metal on the shield back installed at the front of the bulb inside the headlamp, and one end of the heat dissipation tube extends to the upper outer side of the housing and the other end is It is composed of a structure extending to the lower outer side of the housing.

따라서, 찬 외기가 방열관을 통해 헤드램프의 내부공간으로 유입되어 흐르게 되며, 이때 확장된 방열면적을 통해 열이 방출되고 대류현상에 의해 가열된 공기는 상부쪽으로 빠져나가게 된다.Therefore, the cold outside air flows into the inner space of the headlamp through the heat dissipation tube, where heat is released through the extended heat dissipation area, and the air heated by the convection phenomenon escapes to the upper side.

즉, 전도와 대류에 의한 열발산이 동시에 이루어짐으로써 보다 효율적으로 헤드램프 내부의 열을 외부로 배출할 수 있도록 된 것이다.In other words, the heat dissipation by conduction and convection is performed at the same time, so that the heat inside the headlamp can be more efficiently discharged to the outside.

이하, 본 발명을 첨부된 예시도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

도 2는 본 발명에 따른 방열구조가 적용된 헤드램프의 단면도로서, 본 발명은 몸체를 이루는 하우징(1)과, 이 하우징(1)의 개구된 전면에 장착되어 빛이 효과적으로 전방을 조사할 수 있도록 투과시켜주는 렌즈(2)와, 상기 하우징(1)의 후측 중앙에 설치되고 빛을 발생시키는 전구(3) 및 상기 전구(3)의 앞쪽에 설치된 쉴드(6)로 이루어진 자동차용 헤드램프에 있어서, 상기 쉴드(6)의 뒷면에 금속재질의 방열관(5)이 설치되되, 이 방열관(5)은 ⊂형으로 형성되어 상단부는 하우징(1)의 후방 상부 외측으로 연장되고 하단부는 하우징(1)의 후방 하부 외측으로 연장되는 구조로 이루어져 있다.2 is a cross-sectional view of a head lamp to which a heat dissipation structure is applied according to the present invention, and the present invention is mounted on a housing 1 constituting a body and an opened front surface of the housing 1 so that light can effectively irradiate the front. In the headlamp for an automobile comprising a lens (2) for transmitting, a light bulb (3) installed in the rear center of the housing (1) and generating a light, and a shield (6) installed in front of the light bulb (3) In addition, a metal heat dissipation tube 5 is installed on the rear side of the shield 6, and the heat dissipation tube 5 is formed in a ⊂ shape so that the upper end extends to the rear upper outer side of the housing 1, and the lower end is the housing ( It consists of a structure that extends to the rear lower outside of 1).

따라서, 전구(3)로부터의 복사열과 하우징(1) 내부의 가스로부터 전도된 열에 의해 방열관(5)이 가열되며, 이 열은 일단 방열관(5)을 통해 전도되어 하우징(1)의 외측으로 발산된다.Thus, the heat radiation tube 5 is heated by radiant heat from the bulb 3 and heat conducted from the gas inside the housing 1, which heat is once conducted through the heat radiation tube 5 to the outside of the housing 1. Is emitted.

또한, 상기 방열관(5)은 내부에 통로가 형성된 관이므로 하우징(1) 외측의 찬 외기가 유입되어 흐르게 되는데, 이 외기가 위치상 하우징(1)의 내부로 흘러들어가서 보다 넓은 면적의 방열관(5)의 고온부에 접촉하게 되므로 더욱 많은 열을 발산할 수 있게 되며, 이에 더하여 하우징(1) 내측의 방열관(5) 내부에서는 대류현상이 일어나 가열된 외기가 방열관(5)의 상단을 통해 빠져나가고 대신 빈 자리는 방열관(5)의 하단을 통해 새로 유입된 외기가 채우게 되므로 가열공기의 배출이 신속하게 이루어짐으로써 보다 신속하게 내부열이 방출된다.In addition, since the heat dissipation tube 5 is a tube having a passage therein, cold outside air outside the housing 1 flows in and flows in, and the outside air flows into the interior of the housing 1 in position, and thus a heat dissipation tube having a larger area. Since it comes into contact with the high temperature part of (5), it is possible to dissipate more heat, and in addition, convection occurs inside the heat dissipation tube 5 inside the housing 1, so that the heated outside air forms an upper end of the heat dissipation tube 5. Escape through instead of the empty seat is filled with fresh air introduced through the lower end of the heat dissipation tube (5) is discharged of the heating air is made faster and the internal heat is released more quickly.

즉, 본 발명은 외기를 끌어들여 방열부재(본 발명의 방열관)의 고온부에 보다 넓은 면적으로 접촉하게 하며 또한 방열면에 저온의 외기를 지속적으로 접촉할 수 있게 해 줌으로써 방열량을 극대화할 수 있도록 된 것이다.That is, the present invention draws the outside air to make contact with the hot portion of the heat dissipation member (heat radiating tube of the present invention) with a wider area, and also to maximize the amount of heat dissipation by allowing continuous low temperature contact with the heat dissipating surface. It is.

한편, 상기 방열관(5)의 온도는 렌즈(2)의 내면이나 하우징(1)의 내면에 비하여 상대적으로 온도가 낮아 헤드램프 내부의 가스에 포함된 수분의 새로운 응결장소가 되는데, 이와 같이 수분이 방열관(5)에 응결되면 대신 렌즈(2)에는 수분이 응결되지 않게 되므로 렌즈(2)에 수분이 응결되어 렌즈(2)가 흐려짐으로써 조사성능이 약화되는 종래의 단점도 보완할 수 있게 된다.On the other hand, the temperature of the heat dissipation tube (5) is relatively low compared to the inner surface of the lens 2 or the inner surface of the housing 1 is a new condensation place of water contained in the gas inside the headlamp, so When condensation is formed on the heat dissipation tube 5, moisture is not condensed on the lens 2, so that condensation of water on the lens 2 and clouding of the lens 2 may obviate the conventional disadvantage of weakening irradiation performance. do.

이상 설명한 바와 같이 본 발명에 따르면, 전도와 대류를 동시에 이용하여 보다 많은 양의 내부열을 외부로 발산할 수 있게 됨으로써 헤드램프의 내열성이 향상되는 한편, 수분의 응결로 렌즈가 흐려지는 현상이 해소되는 효과가 있다.As described above, according to the present invention, by using both conduction and convection at the same time, it is possible to dissipate a larger amount of internal heat to the outside, thereby improving heat resistance of the headlamp, and eliminating the phenomenon of blurring the lens due to condensation of moisture. There is.

Claims (2)

몸체가 되는 하우징(1)과, 하우징(1)의 전방에 장착되어 빛을 투과시키는 렌즈(2)와, 상기 하우징(1)의 후측 중앙에 설치되어 빛을 발생시키는 전구(3) 및 이 전구(3)의 전방에 설치된 쉴드(6)를 갖춘 자동차용 헤드램프에 있어서,A housing (1) serving as a body, a lens (2) mounted in front of the housing (1) for transmitting light, a bulb (3) installed in the center of the rear side of the housing (1) for generating light, and the bulb A headlamp for a vehicle having a shield (6) installed in front of (3), 상기 쉴드(6)의 뒷면에 하우징(1)의 외측으로 연통되는 금속재의 ⊂형 방열관(5)이 설치된 것을 특징으로 하는 자동차용 헤드램프.Automotive headlamps, characterized in that the metal-shaped heat dissipation tube (5) is installed on the rear of the shield (6) to communicate with the outside of the housing (1). 제 1항에 있어서, 상기 방열관(5)의 상단은 하우징(1)의 후방 상부외측으로 연장되고 하단은 하우징(1)의 후방 하부외측으로 연장된 것을 특징으로 하는 자동차용 헤드램프의 방열구조.The heat dissipation structure of a headlamp for a vehicle according to claim 1, wherein an upper end of the heat dissipation tube 5 extends to the rear upper outer side of the housing 1 and a lower end extends to the rear lower outer side of the housing 1. .
KR10-2000-0084424A 2000-12-28 2000-12-28 a heat radiating structure of head lamp for vehicles KR100372457B1 (en)

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