WO2017020438A1 - Dual-side light emitting sheet-type led automobile headlight - Google Patents

Dual-side light emitting sheet-type led automobile headlight Download PDF

Info

Publication number
WO2017020438A1
WO2017020438A1 PCT/CN2015/093863 CN2015093863W WO2017020438A1 WO 2017020438 A1 WO2017020438 A1 WO 2017020438A1 CN 2015093863 W CN2015093863 W CN 2015093863W WO 2017020438 A1 WO2017020438 A1 WO 2017020438A1
Authority
WO
WIPO (PCT)
Prior art keywords
automobile headlight
type led
emitting sheet
double
light source
Prior art date
Application number
PCT/CN2015/093863
Other languages
French (fr)
Chinese (zh)
Inventor
曹彭溪
叶先锋
苟锁利
申方
高鞠
Original Assignee
苏州晶品新材料股份有限公司
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.)
Filing date
Publication date
Application filed by 苏州晶品新材料股份有限公司 filed Critical 苏州晶品新材料股份有限公司
Publication of WO2017020438A1 publication Critical patent/WO2017020438A1/en

Links

Images

Classifications

    • 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
    • F21S45/42—Forced cooling
    • F21S45/43—Forced cooling using gas
    • 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
    • F21V29/50—Cooling arrangements
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
    • 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]
    • 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
    • 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
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • 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
    • 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
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • 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

Definitions

  • the invention relates to an automobile headlight, in particular to a double-sided light-emitting sheet type LED automobile headlight.
  • halogen headlights has a simple structure, convenient installation, strong light penetration, but low brightness and short life.
  • HID Xenon headlights have high brightness, long life and low power consumption, but the installation is complicated and the startup is slow.
  • LED headlights will be the development trend of automotive lighting. Since the ambient temperature of the car headlights is high (about 50 ° C), the reliability of the LED chip's operating temperature is reduced by half when it is increased by 10 ° C. Therefore, the LED light source must have a good heat dissipation design on the car headlights.
  • the position of the LED light source of the double-sided illumination cannot be concentrated on the focus of the reflector of the automobile headlight, thereby reducing the light extraction efficiency.
  • the present invention provides a double-sided light-emitting sheet type LED automobile headlight, which is composed of a high-efficiency double-sided light source and a high-efficiency heat sink, which not only has a good heat dissipation effect but also improves light extraction efficiency.
  • the invention provides a double-sided light-emitting sheet type LED automobile headlight, comprising a light source and a heat sink.
  • the light source is a micro-sized LED lamp bead, which is made of a highly thermally conductive ceramic substrate, one side of the substrate is soldered to the metal support, and the other side is printed with a metal circuit for bonding with the LED chip to surface-apply the light source.
  • the heat sink is fastened to the bracket by a buckle.
  • the LED chip is a flip chip or a CSP chip.
  • the substrate has a thickness of 0.2 to 2.0 mm.
  • the heat sink adopts an upper narrow and a lower width design, and the narrow portion is fastened and fastened by a buckle to the metal bracket, and the wide portion is a toothed structure.
  • the high thermal conductivity ceramic is at least one of an aluminum nitride ceramic, an alumina ceramic or other high thermal conductivity ceramic, and the high thermal conductivity ceramic is connected to the metal bracket by reflow soldering, brazing or the like.
  • the heat sink is made of a metal such as copper, aluminum or an alloy.
  • the bottom of the heat sink is provided with a fan.
  • the metal bracket is made of copper, aluminum or an alloy.
  • the buckle is a movable replacement buckle for combining the reflector with the base.
  • the double-sided light-emitting sheet type LED automobile headlight uses aluminum nitride ceramic as a substrate, has a thermal conductivity of 270 W/mK, and has excellent heat dissipation effect; and uses a CSP chip to perform surface encapsulation of the light source.
  • the light source area is the smallest, the thickness is the smallest, the light exiting position is more concentrated, and the light source is in the focus of the headlight reflector, which improves the light-emitting efficiency of the light source;
  • the heat sink structure is narrow and wide, the narrow part is convenient for installation, and the wide part improves the heat dissipation of the tooth piece. Area; the bottom is equipped with a fan to further increase the air circulation speed; the buckle is designed independently, and the installation and replacement are simple.
  • FIG. 1 is a schematic structural view of a double-sided light-emitting sheet type LED automobile headlight provided by the present invention.
  • Light source 1 substrate 2, holder 3, LED chip 4, buckle 5, heat sink 6, narrow portion 61, wide portion 62, fan 7, and reflector 8.
  • the present invention provides a double-sided light-emitting sheet type LED automobile headlight, comprising a light source 1 and a heat sink 6.
  • the light source 1 is a micro-sized LED lamp bead, and the high thermal conductive ceramic is a substrate 2, the substrate 2 has a thickness of 0.2-2.0 mm, one side of which is soldered to the bracket 3, and the other side is printed with a metal circuit for the LED chip. 4 is attached to surface mount the light source 1.
  • the high thermal conductivity ceramic may be an aluminum nitride ceramic, an alumina ceramic or other high thermal conductivity ceramic.
  • the high thermal conductivity ceramic is connected to the metal support by reflow soldering, brazing or the like.
  • the high thermal conductivity ceramic is preferably nitrided. Aluminum ceramics.
  • the LED chip 4 can be a flip chip or a CSP chip.
  • the power of the single chip is 1-5W, the size is 1-2mm2, the color temperature is 4000K-7000K, and the color rendering index is >70, which can meet the requirements of the headlight source of the automobile.
  • a CSP chip is preferred, and the use of the CSP chip can avoid the use of the gold wire during COB packaging, improve product reliability and long life, and improve product light efficiency.
  • the SMT process is used for CSP chip packaging, and the requirements for line printing and placement equipment are improved.
  • the material of the metal bracket 3 may be copper, aluminum or an alloy, and in the present embodiment, it is preferably copper.
  • the heat sink 6 is made of a metal such as copper, aluminum or an alloy. In this embodiment, aluminum is preferably used.
  • the narrow and wide design, the narrow portion 61 is fastened to the metal bracket 3 by the buckle 5 or integrated with the metal bracket 3, and the wide portion 62 is a toothed structure.
  • the buckle 5 is a movable replacement buckle for combining the reflector 8 with the base 2.
  • a noise-free fan 7 is disposed at the bottom of the heat sink 6, and is fixed to the heat sink 6 by screws.
  • the double-sided light-emitting sheet type LED automobile headlight uses aluminum nitride ceramic as the substrate 2, the thermal conductivity is 270 W/mK, and the heat dissipation effect is excellent; the surface of the light source is packaged by using the CSP chip 4, so that the light source The area is the smallest, the light-emitting position is more concentrated, and it is at the focus of the headlight reflector of the car, which improves the light-emitting efficiency of the light source, and the thickness is the smallest, and the heat generated can be transmitted to the outside world through a short passage; the heat sink structure is narrow and wide The narrow part is easy to install, the wide part improves the heat dissipation area of the tooth piece; the bottom part is equipped with a fan to further improve the air circulation speed; the buckle is designed independently, and the installation and replacement are simple.

Abstract

A dual-side light emitting sheet-type LED automobile headlight comprising a light source (1) and a radiator (6), the substrate (2) of the radiator being high thermal-conductive ceramic, one side of the substrate (2) being welded on a metal holder (3), and the other side thereof being printed with a metal circuit for fitting with an LED chip (4) so as to surface-mount the light source (1); and both sides of the metal holder (3) are welded with the high thermal-conductive ceramic substrate (2) , and the upper surface of the high thermal-conductive ceramic substrate (2) is surface-mounted with LED lamp beads, allowing for dual-side light emission. In the dual-side light emitting sheet-type LED automobile headlight, high thermal-conductive ceramic is used as the substrate (2), which provides excellent radiating effect; the light source (1) is surface-packaged using the LED chip (4), such that the area of the light source (1) is minimal, the thickness thereof is minimal, and the light emitting positions are more concentrated at the focus of the reflecting cover (8) of the automobile headlight, which improves the light emitting efficiency of the light source (1); the radiator (6) has a structure of a narrow top and wide bottom, the narrow portion facilitating the mounting, the wide portion increasing the radiating area of the fins; the bottom portion is provided with a fan (7), which further improves the air flow rate; and a buckle (5) is designed independently for easy mounting and replacing.

Description

一种双面出光薄片式LED汽车大灯Double-sided light-emitting sheet type LED car headlight 技术领域Technical field
本发明涉及一种汽车大灯，具体涉及一种双面出光薄片式LED汽车大灯。The invention relates to an automobile headlight, in particular to a double-sided light-emitting sheet type LED automobile headlight.
背景技术Background technique
目前汽车上主流的大灯有两大类：卤素大灯和HID氙气大灯。卤素大灯结构简单、安装方便，光的穿透力强，但是亮度低、寿命短。HID氙气大灯亮度高，寿命长，耗电低，但是安装比较复杂，启动慢。作为节能环保健康光源，LED大灯将是汽车照明的发展趋势。由于汽车大灯所处的环境温度高(约50℃)，LED芯片的工作温度每增加10℃其信赖性就会减少一半，所以LED光源应用在汽车大灯上必须有很好的散热设计。另外目前在光源设计上，由于散热基板的厚度限制，使双面发光的LED光源位置不能集中在汽车大灯反光杯的焦点上，降低了出光效率。At present, there are two main types of headlights in the car: halogen headlights and HID xenon headlights. The halogen headlight has a simple structure, convenient installation, strong light penetration, but low brightness and short life. HID Xenon headlights have high brightness, long life and low power consumption, but the installation is complicated and the startup is slow. As a light source of energy saving and environmental protection, LED headlights will be the development trend of automotive lighting. Since the ambient temperature of the car headlights is high (about 50 ° C), the reliability of the LED chip's operating temperature is reduced by half when it is increased by 10 ° C. Therefore, the LED light source must have a good heat dissipation design on the car headlights. In addition, in the current design of the light source, due to the thickness limitation of the heat dissipation substrate, the position of the LED light source of the double-sided illumination cannot be concentrated on the focus of the reflector of the automobile headlight, thereby reducing the light extraction efficiency.
发明内容Summary of the invention
为了克服现有技术的不足，本发明提供一种双面出光薄片式LED汽车大灯，由高效率双面出光光源及高效散热器组成，不仅具有良好的散热效果还可提高出光效率。In order to overcome the deficiencies of the prior art, the present invention provides a double-sided light-emitting sheet type LED automobile headlight, which is composed of a high-efficiency double-sided light source and a high-efficiency heat sink, which not only has a good heat dissipation effect but also improves light extraction efficiency.
本发明提供一种双面出光薄片式LED汽车大灯，包括光源和散热器。The invention provides a double-sided light-emitting sheet type LED automobile headlight, comprising a light source and a heat sink.
所述光源为微尺寸LED灯珠，其由高导热陶瓷为基板，所述基板的一面焊接于金属支架上，另一面印刷有金属电路用于和LED芯片贴合以对所述光源进行表面贴装；所述散热器通过卡扣与支架紧固配合。The light source is a micro-sized LED lamp bead, which is made of a highly thermally conductive ceramic substrate, one side of the substrate is soldered to the metal support, and the other side is printed with a metal circuit for bonding with the LED chip to surface-apply the light source. The heat sink is fastened to the bracket by a buckle.
所述LED芯片为倒装芯片或CSP芯片。The LED chip is a flip chip or a CSP chip.
所述基板的厚度为0.2-2.0mm。The substrate has a thickness of 0.2 to 2.0 mm.
所述散热器采用上窄下宽设计，所述窄部通过卡扣与金属支架紧固配合，宽部为齿片结构。The heat sink adopts an upper narrow and a lower width design, and the narrow portion is fastened and fastened by a buckle to the metal bracket, and the wide portion is a toothed structure.
优选地，所述高导热陶瓷至少为氮化铝陶瓷、氧化铝陶瓷或其他高导热陶瓷中一种，所述高导热陶瓷通过回流焊、钎焊等方式连接于金属支架上。Preferably, the high thermal conductivity ceramic is at least one of an aluminum nitride ceramic, an alumina ceramic or other high thermal conductivity ceramic, and the high thermal conductivity ceramic is connected to the metal bracket by reflow soldering, brazing or the like.
优选地，所述散热器的材质为金属，如铜、铝或合金。Preferably, the heat sink is made of a metal such as copper, aluminum or an alloy.
优选地，所述散热器的底部设有风扇。 Preferably, the bottom of the heat sink is provided with a fan.
优选地，所述金属支架的材质为紫铜、铝或合金。Preferably, the metal bracket is made of copper, aluminum or an alloy.
优选地，所述卡扣为可活动更换卡扣，用于将反光罩与基座结合。Preferably, the buckle is a movable replacement buckle for combining the reflector with the base.
基于上述技术方案的公开，本发明提供的所述双面出光薄片式LED汽车大灯使用氮化铝陶瓷为基板，导热率为270W/mK，散热效果优异；使用CSP芯片进行光源的表面封装，使得光源面积最小，厚度最小，出光位置更集中，处于汽车大灯反光罩的焦点处，提高了光源的出光效率；散热器结构上窄下宽，窄部便于安装，宽部提高了齿片散热面积；底部配置风扇，进一步提高空气流通速度；卡扣独立设计，安装和替换简便。Based on the disclosure of the above technical solution, the double-sided light-emitting sheet type LED automobile headlight provided by the present invention uses aluminum nitride ceramic as a substrate, has a thermal conductivity of 270 W/mK, and has excellent heat dissipation effect; and uses a CSP chip to perform surface encapsulation of the light source. The light source area is the smallest, the thickness is the smallest, the light exiting position is more concentrated, and the light source is in the focus of the headlight reflector, which improves the light-emitting efficiency of the light source; the heat sink structure is narrow and wide, the narrow part is convenient for installation, and the wide part improves the heat dissipation of the tooth piece. Area; the bottom is equipped with a fan to further increase the air circulation speed; the buckle is designed independently, and the installation and replacement are simple.
附图说明DRAWINGS
图1为本发明提供的一种双面出光薄片式LED汽车大灯的结构示意图。FIG. 1 is a schematic structural view of a double-sided light-emitting sheet type LED automobile headlight provided by the present invention.
附图标号说明：Description of the reference numerals:
光源1、基板2、支架3、LED芯片4、卡扣5、散热器6、窄部61、宽部62、风扇7、反光罩8。Light source 1, substrate 2, holder 3, LED chip 4, buckle 5, heat sink 6, narrow portion 61, wide portion 62, fan 7, and reflector 8.
具体实施方式detailed description
下面结合附图对本发明的实施例进行详述。The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
请参阅图1，本发明提供一种双面出光薄片式LED汽车大灯，包括光源1和散热器6。Referring to FIG. 1, the present invention provides a double-sided light-emitting sheet type LED automobile headlight, comprising a light source 1 and a heat sink 6.
所述光源1为微尺寸LED灯珠，由高导热陶瓷为基板2，所述基板2的厚度为0.2-2.0mm，其一面焊接于支架3上，另一面印刷有金属电路用于和LED芯片4贴合以对所述光源1进行表面贴装。The light source 1 is a micro-sized LED lamp bead, and the high thermal conductive ceramic is a substrate 2, the substrate 2 has a thickness of 0.2-2.0 mm, one side of which is soldered to the bracket 3, and the other side is printed with a metal circuit for the LED chip. 4 is attached to surface mount the light source 1.
所述高导热陶瓷可为氮化铝陶瓷、氧化铝陶瓷或其他高导热陶瓷，所述高导热陶瓷通过回流焊、钎焊等方式连接于金属支架上，本实施例中高导热陶瓷优选为氮化铝陶瓷。The high thermal conductivity ceramic may be an aluminum nitride ceramic, an alumina ceramic or other high thermal conductivity ceramic. The high thermal conductivity ceramic is connected to the metal support by reflow soldering, brazing or the like. In the embodiment, the high thermal conductivity ceramic is preferably nitrided. Aluminum ceramics.
所述LED芯片4可为倒装芯片或CSP芯片，单片功率为1-5W，大小为1-2mm2，色温在4000K-7000K，显色指数＞70，可满足汽车大灯光源要求。本实施例中优选为CSP芯片，使用CSP芯片可避免COB封装时金线的使用，提高了产品可靠性及长寿命，更提高了产品光效。CSP芯片封装时采用SMT工艺，对线路印刷、贴片设备要求提高。The LED chip 4 can be a flip chip or a CSP chip. The power of the single chip is 1-5W, the size is 1-2mm2, the color temperature is 4000K-7000K, and the color rendering index is >70, which can meet the requirements of the headlight source of the automobile. In this embodiment, a CSP chip is preferred, and the use of the CSP chip can avoid the use of the gold wire during COB packaging, improve product reliability and long life, and improve product light efficiency. The SMT process is used for CSP chip packaging, and the requirements for line printing and placement equipment are improved.
所述金属支架3的材质可为紫铜、铝或合金，本实施例中优选为紫铜。The material of the metal bracket 3 may be copper, aluminum or an alloy, and in the present embodiment, it is preferably copper.
所述散热器6的材质为金属，如铜、铝或合金，本实施例中优选为铝，其采用通过上 窄下宽设计，其窄部61通过卡扣5与金属支架3紧固配合或与所述金属支架3为一体结构，所述宽部62为齿片结构。The heat sink 6 is made of a metal such as copper, aluminum or an alloy. In this embodiment, aluminum is preferably used. The narrow and wide design, the narrow portion 61 is fastened to the metal bracket 3 by the buckle 5 or integrated with the metal bracket 3, and the wide portion 62 is a toothed structure.
所述卡扣5为可活动更换卡扣，用于将反光罩8与基座2结合。The buckle 5 is a movable replacement buckle for combining the reflector 8 with the base 2.
所述散热器6的底部设有无噪声风扇7，采用螺丝与散热器6固定。A noise-free fan 7 is disposed at the bottom of the heat sink 6, and is fixed to the heat sink 6 by screws.
综上，本发明提供的所述双面出光薄片式LED汽车大灯使用氮化铝陶瓷为基板2，导热率为270W/mK，散热效果优异；使用CSP芯片4进行光源的表面封装，使得光源面积最小，出光位置更集中，处于汽车大灯反光罩的焦点处，提高了光源的出光效率，且厚度最小，其产生的热可以很短的通道传到外界，；散热器结构上窄下宽，窄部便于安装，宽部提高了齿片散热面积；底部配置风扇，进一步提高空气流通速度；卡扣独立设计，安装和替换简便。In summary, the double-sided light-emitting sheet type LED automobile headlight provided by the present invention uses aluminum nitride ceramic as the substrate 2, the thermal conductivity is 270 W/mK, and the heat dissipation effect is excellent; the surface of the light source is packaged by using the CSP chip 4, so that the light source The area is the smallest, the light-emitting position is more concentrated, and it is at the focus of the headlight reflector of the car, which improves the light-emitting efficiency of the light source, and the thickness is the smallest, and the heat generated can be transmitted to the outside world through a short passage; the heat sink structure is narrow and wide The narrow part is easy to install, the wide part improves the heat dissipation area of the tooth piece; the bottom part is equipped with a fan to further improve the air circulation speed; the buckle is designed independently, and the installation and replacement are simple.
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，根据本发明的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明的保护范围之内。 The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any technical person skilled in the art within the technical scope disclosed by the present invention, the technical solution according to the present invention Equivalent substitutions or modifications of the inventive concept are intended to be included within the scope of the invention.

Claims (9)

  1. 一种双面出光薄片式LED汽车大灯，其特征在于，包括光源和散热器，其中：A double-sided light-emitting sheet type LED automobile headlight, characterized by comprising a light source and a heat sink, wherein:
    所述光源为微尺寸LED灯珠，其由高导热陶瓷为基板，所述基板的一面焊接于金属支架上，另一面印刷有金属电路用于和LED芯片贴合以对所述光源进行表面贴装；The light source is a micro-sized LED lamp bead, which is made of a highly thermally conductive ceramic substrate, one side of the substrate is soldered to the metal support, and the other side is printed with a metal circuit for bonding with the LED chip to surface-apply the light source. Load
    所述散热器通过卡扣与金属支架紧固配合。The heat sink is fastened to the metal bracket by a snap.
  2. 根据权利要求1所述的一种双面出光薄片式LED汽车大灯，其特征在于，所述LED芯片为倒装芯片。The double-sided light-emitting sheet type LED automobile headlight according to claim 1, wherein the LED chip is a flip chip.
  3. 根据权利要求1所述的一种双面出光薄片式LED汽车大灯，其特征在于，所述LED芯片为CSP芯片。The double-sided light-emitting sheet type LED automobile headlight according to claim 1, wherein the LED chip is a CSP chip.
  4. 根据权利要求1所述的一种双面出光薄片式LED汽车大灯，其特征在于，所述高导热陶瓷至少为氮化铝陶瓷、氧化铝陶瓷或其他高导热陶瓷中一种。The double-sided light-emitting sheet type LED automobile headlight according to claim 1, wherein the high thermal conductive ceramic is at least one of an aluminum nitride ceramic, an alumina ceramic or another high thermal conductive ceramic.
  5. 根据权利要求1所述的一种双面出光薄片式LED汽车大灯，其特征在于，所述基板的厚度为0.2-2.0mm。A double-sided light-emitting sheet type LED automobile headlight according to claim 1, wherein the substrate has a thickness of 0.2 to 2.0 mm.
  6. 根据权利要求1所述的一种双面出光薄片式LED汽车大灯，其特征在于，所述散热器的材质为金属。The double-sided light-emitting sheet type LED automobile headlight according to claim 1, wherein the heat sink is made of metal.
  7. 根据权利要求1所述的一种双面出光薄片式LED汽车大灯，其特征在于，所述散热器采用上窄下宽设计，所述窄部通过卡扣与金属支架紧固配合，所述宽部为齿片结构。The double-sided light-emitting sheet type LED automobile headlight according to claim 1, wherein the heat sink adopts an upper narrow and a lower width design, and the narrow portion is fastened and fastened with a metal bracket by a buckle, The wide part is a toothed structure.
  8. 根据权利要求1所述的一种双面出光薄片式LED汽车大灯，其特征在于，所述散热器的底部设有风扇。A double-sided light-emitting sheet type LED automobile headlight according to claim 1, wherein a fan is provided at a bottom of the heat sink.
  9. 根据权利要求1所述的一种双面出光薄片式LED汽车大灯，其特征在于，所述卡扣为可活动更换卡扣，用于将反光罩与基座结合。 The double-sided light-emitting sheet type LED automobile headlight according to claim 1, wherein the buckle is a movable replacement buckle for coupling the reflector to the base.
PCT/CN2015/093863 2015-08-04 2015-11-05 Dual-side light emitting sheet-type led automobile headlight WO2017020438A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510471633.5 2015-08-04
CN201510471633.5A CN104990020A (en) 2015-08-04 2015-08-04 Double-face light-extraction slice type LED automobile headlamp

Publications (1)

Publication Number Publication Date
WO2017020438A1 true WO2017020438A1 (en) 2017-02-09

Family

ID=54301876

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/093863 WO2017020438A1 (en) 2015-08-04 2015-11-05 Dual-side light emitting sheet-type led automobile headlight

Country Status (2)

Country Link
CN (1) CN104990020A (en)
WO (1) WO2017020438A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106949421A (en) * 2017-05-03 2017-07-14 蒋敏 A kind of LED automobile lamp with detachable reflector
CN110307520A (en) * 2018-03-20 2019-10-08 中山市卓野照明电子科技有限公司 A kind of automobile LED headlight that illumination good brightness heat dissipation performance is strong
US10458613B2 (en) 2017-11-20 2019-10-29 MLS Automotive, Inc Vehicle light source

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104990020A (en) * 2015-08-04 2015-10-21 苏州晶品新材料股份有限公司 Double-face light-extraction slice type LED automobile headlamp
CN107327779A (en) * 2017-06-27 2017-11-07 佛山肆强科技有限公司 A kind of car light lateral edge heat-conducting LED lamp and LED car lamp
CN107327778A (en) * 2017-06-27 2017-11-07 佛山肆强科技有限公司 A kind of car light side heat conduction groove installing type LED lamp and LED car lamp
CN107289396A (en) * 2017-06-27 2017-10-24 佛山肆强科技有限公司 Using the lateral heat-conducting LED lamp and LED car lamp of film circuit board and convex flat heat transfer component
CN107339658A (en) * 2017-06-27 2017-11-10 佛山肆强科技有限公司 Substrate package LED sides heat-conducting LED lamp and LED car lamp
CN109424905A (en) * 2017-07-17 2019-03-05 佛山市蔚蓝光电科技有限公司 X-type LED car lamp light-source structure
CN109980074A (en) * 2017-12-27 2019-07-05 晶能光电（江西）有限公司 The preparation method of LED headlamp

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1860327A (en) * 2003-10-01 2006-11-08 恩纳特隆公司 Methods and apparatus for an led light
CN203549640U (en) * 2013-10-14 2014-04-16 林济敏 LED (Light Emitting Diode) automotive headlamp
CN203880555U (en) * 2014-04-18 2014-10-15 竺桂荣 High beam and low beam integrated automobile headlamp based on LED
US20140355286A1 (en) * 2013-05-31 2014-12-04 Panasonic Corporation Light source unit and vehicle front lamp using the light source unit
CN204176515U (en) * 2014-11-21 2015-02-25 英德市朝旭照明电器有限公司 With the energy-conservation headlight of new automobile LED of fan
CN104990020A (en) * 2015-08-04 2015-10-21 苏州晶品新材料股份有限公司 Double-face light-extraction slice type LED automobile headlamp
CN205048323U (en) * 2015-08-04 2016-02-24 苏州晶品新材料股份有限公司 Two -sided light -emitting thin slice formula LED car headlight

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2540685Y (en) * 2002-06-03 2003-03-19 葛世潮 High-efficient high power light-emitting diode
JP4140042B2 (en) * 2003-09-17 2008-08-27 スタンレー電気株式会社 LED light source device using phosphor and vehicle headlamp using LED light source device
US7550319B2 (en) * 2005-09-01 2009-06-23 E. I. Du Pont De Nemours And Company Low temperature co-fired ceramic (LTCC) tape compositions, light emitting diode (LED) modules, lighting devices and method of forming thereof
CN203052461U (en) * 2012-12-01 2013-07-10 刘莲凤 Automotive headlamp employing LED (light-emitting diode) light source
CN203517575U (en) * 2013-10-17 2014-04-02 马勇 Automotive LED (Light Emitting Diode) headlamp suite
CN203595059U (en) * 2013-12-10 2014-05-14 广州核光电子有限公司 LED automobile headlamp
CN204285237U (en) * 2014-12-10 2015-04-22 广东雪莱特光电科技股份有限公司 LED headlamp

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1860327A (en) * 2003-10-01 2006-11-08 恩纳特隆公司 Methods and apparatus for an led light
US20140355286A1 (en) * 2013-05-31 2014-12-04 Panasonic Corporation Light source unit and vehicle front lamp using the light source unit
CN203549640U (en) * 2013-10-14 2014-04-16 林济敏 LED (Light Emitting Diode) automotive headlamp
CN203880555U (en) * 2014-04-18 2014-10-15 竺桂荣 High beam and low beam integrated automobile headlamp based on LED
CN204176515U (en) * 2014-11-21 2015-02-25 英德市朝旭照明电器有限公司 With the energy-conservation headlight of new automobile LED of fan
CN104990020A (en) * 2015-08-04 2015-10-21 苏州晶品新材料股份有限公司 Double-face light-extraction slice type LED automobile headlamp
CN205048323U (en) * 2015-08-04 2016-02-24 苏州晶品新材料股份有限公司 Two -sided light -emitting thin slice formula LED car headlight

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106949421A (en) * 2017-05-03 2017-07-14 蒋敏 A kind of LED automobile lamp with detachable reflector
CN106949421B (en) * 2017-05-03 2023-09-19 佛山市塔孚汽车照明有限公司 LED car lamp with separable reflective cup
US10458613B2 (en) 2017-11-20 2019-10-29 MLS Automotive, Inc Vehicle light source
CN110307520A (en) * 2018-03-20 2019-10-08 中山市卓野照明电子科技有限公司 A kind of automobile LED headlight that illumination good brightness heat dissipation performance is strong

Also Published As

Publication number Publication date
CN104990020A (en) 2015-10-21

Similar Documents

Publication Publication Date Title
WO2017020438A1 (en) Dual-side light emitting sheet-type led automobile headlight
JP4750821B2 (en) Luminescent display panel
TWM423207U (en) Heat-dissipation structure for light bulb
CN202281104U (en) Low thermal resistance LED lamp support
JP5846691B2 (en) Illumination lamps and vehicle headlamps using light-emitting diodes
CN105006515B (en) A kind of LED chip radiator structure
KR200449331Y1 (en) Chip LED lighting device
KR101304733B1 (en) Printed circuit board having heat sink structure and LED lighting apparatus having the same
JP2005109228A (en) Led device and led illumination apparatus
JP2009212367A (en) Semiconductor light-emitting device
KR101281340B1 (en) Printed circuit board having heat sink structure and led lighting apparatus having the same
JP3218945U (en) Full glass cover type wide-angle light emitting LED bulb
TW201430278A (en) A light emitting device, which has a light emitting diode
CN205048323U (en) Two -sided light -emitting thin slice formula LED car headlight
JP5177103B2 (en) LED heat sink
JP4235906B2 (en) LED lamp for bicycle
TWI231613B (en) Package structure of enhanced power light emitting diode
JP2007080538A (en) Luminaire
CN204785719U (en) High power LED lamps and lanterns
TWM405524U (en) LED three-dimensional bulb lamp
TWI412700B (en) Thermal resistance parallel LED light source and contains the thermal resistance of parallel LED light source lamps
JP2016129172A (en) Semiconductor light emitting element bulb and lighting system including the same
TWM331851U (en) Illumination lamp and illumination module
TWM333505U (en) The ceiling type LED lamp with conical light reflection
TWM455128U (en) LED bulb

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15900208

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15900208

Country of ref document: EP

Kind code of ref document: A1