WO2017107335A1 - 一种led车灯光源、前照灯光源及车灯光源制造方法 - Google Patents

一种led车灯光源、前照灯光源及车灯光源制造方法 Download PDF

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WO2017107335A1
WO2017107335A1 PCT/CN2016/077949 CN2016077949W WO2017107335A1 WO 2017107335 A1 WO2017107335 A1 WO 2017107335A1 CN 2016077949 W CN2016077949 W CN 2016077949W WO 2017107335 A1 WO2017107335 A1 WO 2017107335A1
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Prior art keywords
led
light source
top surface
light
led chip
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PCT/CN2016/077949
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English (en)
French (fr)
Inventor
黄增颖
曾昭烩
毛卡斯
黄巍
石超
李国平
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鸿利智汇集团股份有限公司
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Priority claimed from CN201510983188.0A external-priority patent/CN105514253B/zh
Priority claimed from CN201521089879.8U external-priority patent/CN205299313U/zh
Application filed by 鸿利智汇集团股份有限公司 filed Critical 鸿利智汇集团股份有限公司
Publication of WO2017107335A1 publication Critical patent/WO2017107335A1/zh

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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
    • 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
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/192—Details of lamp holders, terminals or connectors
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • 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

Definitions

  • the invention relates to a lamp, in particular to an LED lamp light source, a headlight source and a lamp source manufacturing method.
  • LEDs have been used in automotive headlights.
  • automotive headlight sources such as headlamp sources
  • the optical requirements are: in low beam, a cut-off line is required.
  • a relatively simple automobile lamp light source appears on the market, such as an LED lamp of the Chinese Patent Publication No.
  • 204313175 comprising a substrate, a light-limiting frame and a chip, and the substrate has In the functional area, the chip is fixed in the functional zone by a die bonding process, and the light-limiting frame is filled with fluorescent glue or glue; a positioning groove is arranged outside the functional area on the substrate, and the lower end of the light-limiting frame is locked In the positioning groove, an adhesive is disposed between the positioning groove and the light-limiting frame.
  • the lamp is matched with a chip arranged in a line shape, so that the low beam type of the light beam has a cut-off line to meet the requirements.
  • One of the technical problems to be solved by the present invention is to provide an LED lamp light source and a method of manufacturing the same, which can produce a clear cut-off line when low beam.
  • the second technical problem to be solved by the present invention is to provide an LED headlight light source, which integrates the functions of a low beam light source and a high beam light source, and has a simple structure, and the illumination brightness satisfies the requirement, and a clear cut-off line can be generated in the low beam. .
  • an LED lamp light source comprising a substrate, wherein the substrate is provided with a functional area, and the functional area is provided with a dry LED chip, wherein the functional area is rectangular, and a periphery of the functional area is provided with a dam to enclose the LED chip; a top surface of each of the LED chips is independently covered with fluorescent glass; Light blocking glue, the light blocking glue covers the side of the LED chip.
  • the bib of the invention is a rectangular frame body, and the appearance of the LED chip is restricted by the cofferdam, so that the light source of the vehicle lamp source can form a cut-off line of the light and dark; in addition, each LED chip is provided with fluorescent glass and fluorescent glass.
  • the light output of the LED chip is distributed, so that the light-emitting effect of each LED chip is enhanced, so that the light source light source can form a clear cut-off line when the light source is low-light;
  • the fluorescent glass is heat-resistant, and the process is simple, and the solid crystal machine can be used.
  • the fixing of the LED chip and the fluorescent glass is completed;
  • the light blocking glue may be white glue, which is used for shielding the light from the side of the LED chip to remove excess stray light.
  • the area of the fluorescent glass is similar to the shape of the top surface of the LED chip.
  • the top surface of the LED chip and the shape of the fluorescent glass are square.
  • the area of the fluorescent glass is 1-1.1 times the area of the top surface of the LED chip.
  • the LED chips are arranged in a line shape to enhance the definition of the cut-off line.
  • the fluorescent glass is bonded to the top surface of the LED chip by a heat resistant adhesive.
  • the bottom of the substrate is provided with two electrodes, and the substrate is provided with a via hole corresponding to the electrode, and the electrode passes through the conductive connection member disposed in the via hole and the circuit layer on the top surface of the substrate. Electrical connection. Since the structure of the light source of the lamp is small, it is difficult to solve the problem that the front side of the lamp light source is difficult to be connected.
  • the space at the bottom of the substrate is used to set the electrode of the lamp light source at the bottom of the substrate so that the wiring is not disturbed.
  • the bottom of the substrate is provided with a heat conducting layer below the LED chip.
  • a method of manufacturing a LED light source includes the following steps:
  • fabricating a substrate comprising disposing a circuit layer on a top surface of the substrate, and providing an electrode at a bottom of the substrate, wherein the electrode is electrically connected to the circuit layer;
  • a rectangular cofferdam is arranged along the edge of the functional area, and the cofferdam encloses the LED chip;
  • the light blocking glue is filled in the manner of moving the dispensing from one end of the cofferdam to the other end along the length of the cofferdam.
  • two dispensing heads are provided, one on each side of the LED chip.
  • the step (4) specifically includes: applying a heat-resistant glue on the light-emitting surface of the top surface of each LED chip, and fixing the fluorescent glass on the top surface of the LED chip by using a die bonding machine.
  • an LED headlight light source comprising a mount and a light source, the light source comprising a low beam source and a high beam source disposed on the mount; the mount The top surface and the bottom surface are respectively provided with two LED light-emitting units, and the two LED light-emitting units on the top surface and the two LED light-emitting units on the bottom surface correspond to the next one, and the corresponding two LED light-emitting units constitute a low-beam light source, and the corresponding
  • the two LED lighting units comprise a high beam light source;
  • the LED lighting unit comprises a substrate, the substrate is provided with a functional area, and the functional area is provided with a plurality of LED chips, the functional area is rectangular, and the periphery of the functional area
  • the LED chip is enclosed by a weir; the top surface of each of the LED chips is independently covered with a fluorescent layer.
  • the low beam source and the high beam source of the invention are both formed by two LED lighting units, and the two LED lighting units are respectively located on the top surface and the bottom surface of the mounting seat, and the limited space is utilized to set the position of the light source, while increasing the brightness. As little as possible, taking up space and having a simple structure. Since the area of each LED light source is close to the area of the LED chip, and the area of the LED light source is small, the light of the vertical chip light-emitting surface is enhanced, so that the cut-off line of the low-light is clearer.
  • the positions of the two LED lighting units located on the top surface are offset from each other; the positions of the two LED lighting units located on the bottom surface are offset from each other, reducing heat concentration and accelerating heat dissipation.
  • the fluorescent layer is a fluorescent glass.
  • the area of the fluorescent layer and the shape of the top surface of the LED chip similar.
  • the barrier is provided with a light blocking glue, and the light blocking glue covers the side of the LED chip.
  • the LED chips are arranged in a line.
  • the fluorescent glass is bonded to the top surface of the LED chip by a heat resistant adhesive.
  • the enclosure of the present invention is a rectangular frame, and the occurrence of the LED chip is restricted by the cofferdam, so that the light source of the lamp can form a cut-off line;
  • Each LED chip is equipped with fluorescent glass, and the fluorescent glass distributes the light of the LED chip, so that the light-emitting effect of each LED chip is enhanced, so that the light-off source can form an obvious cut-off line when the light source is low-beam;
  • the fluorescent glass is heat-resistant and the process is simple.
  • the fixing of the LED chip and the fluorescent glass can be completed by the solid crystal machine;
  • the light blocking glue can be white glue, which is used for shielding the light on the side of the LED chip to remove excess stray light. ;
  • the low beam source and the high beam source of the present invention are both formed by two LED illumination units, and the two LED illumination units are respectively located on the top surface and the bottom surface of the mount, and the limited space is used to set the position of the light source, and the brightness is increased. At the same time, as little space as possible, the structure is simple. Since the area of each LED light source is close to the area of the LED chip, and the area of the LED light source is small, the light of the vertical chip light-emitting surface is enhanced, so that the cut-off line of the low-light is clearer.
  • FIG. 1 is a schematic view showing the distribution of an LED chip of a vehicle lamp source of Embodiment 1.
  • Fig. 2 is a cross-sectional view showing the light source of the lamp of the first embodiment.
  • Embodiment 3 is a flow chart showing a manufacturing process of the lamp light source of Embodiment 1.
  • Embodiment 4 is a side view of the headlamp light source of Embodiment 2.
  • Fig. 5 is a view showing the distribution of the LED light-emitting unit of the embodiment 2 on the top surface of the mount.
  • Fig. 6 is a plan view showing the LED lighting unit of the second embodiment.
  • Fig. 7 is a cross-sectional view showing the LED lighting unit of the second embodiment.
  • an LED lamp light source includes a rectangular substrate 1, a circuit layer disposed on the surface of the substrate 1, and a plurality of LED chips 3 disposed on the circuit layer.
  • the substrate 1 is provided with a functional area 4, the functional area 4 is rectangular, the LED chips 3 are arranged in a line, and the LED chip 3 is located substantially at the middle of the functional area 4.
  • the periphery of the functional area 4 is provided with a dam 2 disposed along the edge of the functional area 4, and the dam 2 is a rectangular frame structure, the height of the dam 2 is higher than the top surface of the LED chip 3, and the LED chip 3 can be enclosed In a rectangular space.
  • the top surface of the LED chip 3 is covered with a fluorescent glass 5, and the shape of the fluorescent glass 5 is similar to the shape of the top surface of the LED chip 3, that is, the top surface of the LED chip in this embodiment is light-emitting. If the surface is square, the shape of the fluorescent glass is also square, the area of the fluorescent glass is slightly larger than or equal to the area of the top surface of the LED chip, and the area of the fluorescent glass is 1-1.1 of the area of the top surface of the LED chip. Times.
  • the baffle 2 is filled with a light-blocking glue 6 which covers the side of the LED chip 3; the light-blocking glue 6 may be white glue for shielding the light from the side of the LED chip 3 to remove excess Stray light.
  • Two electrodes 7 are disposed at two ends of the bottom of the substrate 1.
  • One electrode is a positive electrode and one is a negative electrode.
  • the substrate 1 is provided with a via hole 8 corresponding to the electrode, and the electrode 7 is disposed through the guide.
  • the conductive connecting member 9 in the through hole 8 is electrically connected to the circuit layer, and the conductive connecting member 9 may be a wire or copper is injected into the through hole 8 to form a conductive post.
  • the bottom of the substrate 1 is provided with a heat conducting layer 10, and the heat of the lamp source is quickly dissipated through the heat conducting layer.
  • fabricating a substrate comprising disposing a circuit layer on a top surface of the substrate, and providing an electrode at a bottom of the substrate, wherein the electrode is electrically connected to the circuit layer;
  • a rectangular cofferdam is arranged along the edge of the functional area, and the cofferdam encloses the LED chip;
  • an LED headlamp source includes a mount 12 and a light source.
  • the light source includes a low beam light source and a high beam light source disposed on the mounting seat 12.
  • the present invention integrates the low beam and high beam functions on a mounting seat, and switches the low beam light source by respectively switching between the low beam source and the high beam source. High beam source.
  • the top surface and the bottom surface of the mounting base 12 are respectively provided with two LED lighting units 11.
  • the positions of the two LED lighting units 11 on the top surface are offset from each other, and the positions of the two LED lighting units 11 located on the bottom surface are staggered from each other;
  • the two LED light-emitting units 11 of the surface are in a next correspondence with the two LED light-emitting units 11 on the bottom surface, and the two LED light-emitting units 11 form a low-beam light source 14 , and the corresponding two LED light-emitting units 11 constitute a high-beam light source 15 . .
  • the LED lighting unit 11 includes a rectangular substrate 1 , and the substrate 1 is provided with a functional area 4 , the functional area 4 is rectangular, and the functional area 4 is provided with a plurality of The LED chip 3 of the font arrangement is arranged substantially in the middle of the functional area 4.
  • the periphery of the functional area 4 is provided with a dam 2 disposed along the edge of the functional area 4, and the dam 2 is a rectangular frame structure, the height of the dam 2 is higher than the top surface of the LED chip 3, and the LED chip 3 can be enclosed In a rectangular space.
  • the top surface of each of the LED chips 3 is independently covered with a fluorescent layer, and the shape of the fluorescent layer is similar to the shape of the top surface of the LED chip 3.
  • the fluorescent layer of the embodiment is fluorescent glass 5, and the fluorescent layer is fluorescent.
  • the glass 5 is heat-resistant and the construction process is simple, and it can be passed through the solid crystal machine.
  • the fixing of the LED chip 3 and the fluorescent glass 5 is completed.
  • the baffle 2 is filled with a light-blocking glue 6 which covers the side of the LED chip 3; the light-blocking glue 6 may be white glue for shielding the light from the side of the LED chip 3 to remove excess Stray light.
  • the low beam light source and the high beam light source of the present invention are both formed by two LED light emitting units, and the two LED light emitting units are respectively located on the top surface and the bottom surface of the mounting seat 12, and the limited space is utilized to set the position of the light source, and the brightness is increased. At the same time, as little space as possible, the structure is simple.

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

Abstract

一种LED车灯光源、前照灯光源及车灯光源制造方法，前照灯包括基板（1），基板上设有功能区（4），功能区上设有若干LED芯片（3），功能区呈长方形，功能区的外围设有围堰（2）将LED芯片围闭；每个LED芯片的顶面出光面均覆盖有荧光玻璃（5）；围堰内设有挡光胶（6），挡光胶遮盖LED芯片的侧面；制造工艺包括：(1)制作基板，(2)通过固晶机将LED芯片固定在功能区上；(3)在每个LED芯片的顶面出光面上涂耐热胶，利用固晶机将荧光玻璃固定在LED芯片的顶面；(4)沿功能区的边缘设置长方形的围堰，围堰将LED芯片围闭；(5)在围堰内填充挡光胶，挡光胶流平后将LED芯片的侧面遮蔽。由此，车灯打出的近光能够形成明暗截止线。

Description

一种LED车灯光源、前照灯光源及车灯光源制造方法 技术领域
本发明涉及车灯，尤其是一种LED车灯光源、前照灯光源及车灯光源制造方法。
背景技术
随着LED的兴起，LED的应用领域越来越广，近几年LED已经应用于汽车车灯照明上。对于汽车车灯光源如前照灯光源来说，其对光学的要求为：在近光时，需要有明暗截止线。为满足车灯近光具有明暗截止线的要求，市场上出现一种比较简单的汽车车灯光源，如中国专利公开号为204313175一种LED车灯，包括基板、限光框和芯片，基板具有功能区，在功能区内通过固晶工艺固定有所述的芯片，在限光框内填充有荧光胶或胶水；在基板上位于功能区外设有定位槽，限光框的下端部卡置在定位槽内，定位槽与限光框之间设有粘胶。该车灯通过限光框和一字型排列的芯片配合，使其打出来的近光光型具有明暗截止线，从而满足要求。上述车灯虽然勉强能够满足车灯光源的关照要求，但是由于光学配件与LED芯片的位置不合理，不能使芯片发出的大部分光垂直射出，导致其近光时的明暗截止线不够明显。
发明内容
本发明所要解决的技术问题之一是提供一种LED车灯光源及其制造方法，近光时，能够产生清晰的明暗截止线。
本发明所要解决的技术问题之二是提供一种LED前照灯光源，集成近光光源和远光光源的功能，而且结构简单，且照射亮度满足要求，近光时能够产生清晰的明暗截止线。
为解决上述技术问题之一，本发明的技术方案是：一种LED车灯光源，包括基板，所述基板上设有功能区，所述功能区上设有若 干LED芯片，所述功能区呈长方形，功能区的外围设有围堰将LED芯片围闭；每个所述LED芯片的顶面出光面均独立覆盖有荧光玻璃；所述围堰内设有挡光胶，所述挡光胶遮盖LED芯片的侧面。本发明的围堰为长方形的框体，通过围堰将LED芯片的出现进行限制，使车灯光源将打出的近光能够形成明暗截止线；另外，每个LED芯片配有荧光玻璃，荧光玻璃对LED芯片的出光进行配光，因此每个LED芯片的出光效果得到增强，使车灯光源近光时能够形成明显的明暗截止线；荧光玻璃耐热，而且工艺简单，通过固晶机即可完成LED芯片和荧光玻璃的固定；挡光胶可以是白胶，用于将LED芯片侧面的出光进行遮挡，去除多余的杂光。
作为改进，所述荧光玻璃的面积与LED芯片的顶面出光面的形状相似。
作为改进，LED芯片的顶面出光面和荧光玻璃的形状均为方形。
作为改进，荧光玻璃的面积为LED芯片的顶面出光面的面积的1-1.1倍。
作为改进，所述LED芯片呈一字型排列，增强明暗截止线的想过。
作为改进，所述荧光玻璃通过耐热胶粘接在LED芯片的顶面出光面上。
作为改进，所述基板的底部设有两个电极，所述基板上对应所述电极处设有导通孔，所述电极通过设置在导通孔内的导电连接件与基板顶面的线路层电性连接。由于车灯光源结构小，解决车灯光源正面难以接线的问题，用基板底部的空间，将车灯光源的电极设置在基板的底部，使接线不会受到干扰。
作为改进，所述基板的底部对应LED芯片的下方设有导热层。
LED车灯光源的制造方法，包括以下步骤：
(1)制作基板：包括在基板的顶面设置线路层，在基板的底部设置电极，电极与线路层电性连接；
(2)将LED芯片固定在功能区上；LED芯片呈一字型排列；
(3)切割出面积与LED芯片顶面面积大小的荧光玻璃；
(4)在每个LED芯片的顶面出光面上涂耐热胶，将荧光玻璃固定在LED芯片的顶面；
(5)沿功能区的边缘设置长方形的围堰，围堰将LED芯片围闭；
(6)在围堰内填充挡光胶，挡光胶流平后将LED芯片的侧面遮蔽。
作为改进，所述挡光胶的填充方式：沿围堰长度方向，从围堰的一端向另一端移动点胶。
作为改进，设有两个点胶头，分别位于LED芯片的两侧。
作为改进，步骤(4)具体包括：在每个LED芯片的顶面出光面上涂耐热胶，利用固晶机将荧光玻璃固定在LED芯片的顶面。
为解决上述技术问题之二，本发明的技术方案是：一种LED前照灯光源，包括安装座和光源，所述光源包括设置安装座上的近光光源和远光光源；所述安装座的顶面和底面均设有两个LED发光单元，顶面的两个LED发光单元与底面的两个LED发光单元呈上下一一对应，对应的两个LED发光单元组成近光光源，另外对应的两个LED发光单元组成远光光源；所述LED发光单元包括基板，所述基板上设有功能区，所述功能区上设有若干LED芯片，所述功能区呈长方形，功能区的外围设有围堰将LED芯片围闭；每个所述LED芯片的顶面出光面均独立覆盖有荧光层。本发明的近光光源和远光光源均采用两个LED发光单元形成，两个LED发光单元分别位于安装座的顶面和底面，充分利用有限的空间来设置光源的位置，在增加亮度的同时，尽量的少占用空间，结构简单。由于在每个LED光源与LED芯片的面积相接近，且LED光源的面积较小，从而使得垂直芯片出光面的光增强，从而使得近光时明暗截止线更加清晰。
作为改进，位于顶面的两个LED发光单元的位置相互错开；位于底面的两个LED发光单元的位置相互错开，减少热量集中，加速热量的散发。
作为改进，所述荧光层为荧光玻璃。
作为改进，所述荧光层的面积与LED芯片的顶面出光面的形状 相似。
作为改进，所述围堰内设有挡光胶，所述挡光胶遮盖LED芯片的侧面。
作为改进，所述LED芯片呈一字型排列。
作为改进，所述荧光玻璃通过耐热胶粘接在LED芯片的顶面出光面上。
本发明与现有技术相比所带来的有益效果是：
1、本发明的围堰为长方形的框体，通过围堰将LED芯片的出现进行限制，使车灯光源将打出的近光能够形成明暗截止线；
2、每个LED芯片配有荧光玻璃，荧光玻璃对LED芯片的出光进行配光，因此每个LED芯片的出光效果得到增强，使车灯光源近光时能够形成明显的明暗截止线；
3、荧光玻璃耐热，而且工艺简单，通过固晶机即可完成LED芯片和荧光玻璃的固定；挡光胶可以是白胶，用于将LED芯片侧面的出光进行遮挡，去除多余的杂光；
4、用基板底部的空间，将车灯光源的电极设置在基板的底部，使接线不会受到干扰。
5、利用两个点胶头移动式点胶，挡光胶流平速度更快。
6、本发明的近光光源和远光光源均采用两个LED发光单元形成，两个LED发光单元分别位于安装座的顶面和底面，充分利用有限的空间来设置光源的位置，在增加亮度的同时，尽量的少占用空间，结构简单。由于在每个LED光源与LED芯片的面积相接近，且LED光源的面积较小，从而使得垂直芯片出光面的光增强，从而使得近光时明暗截止线更加清晰。
附图说明
图1为实施例1车灯光源LED芯片的分布示意图。
图2为实施例1车灯光源的剖视图。
图3为实施例1车灯光源的制作工艺流程图。
图4为实施例2前照灯光源侧面示意图。
图5为实施例2LED发光单元在安装座的顶面的分布。
图6为实施例2LED发光单元的俯视图。
图7为实施例2LED发光单元的剖视图。
具体实施方式
下面结合说明书附图对本发明作进一步说明。
实施例1
如图1、2所示，一种LED车灯光源，包括长方形的基板1、设于基板1表面的线路层和设于线路层上的若干LED芯片3。所述基板1上设有功能区4，所述功能区4呈长方形，LED芯片3呈一字型排列的，LED芯片3基本位于功能区4的中间位置。功能区4的外围设有沿功能区4边缘设置的围堰2，围堰2为长方形的框体结构，围堰2的高度比LED芯片3的顶面高，并且能够将LED芯片3围闭在一个长方形的空间内。每个所述LED芯片3的顶面出光面均覆盖有荧光玻璃5，所述荧光玻璃5的形状与LED芯片3的顶面出光面的形状相似，即本实施例中LED芯片的顶面出光面为方形，则荧光玻璃的形状也为方形，荧光玻璃的面积略大于或等于LED芯片的顶面出光面的面积，及荧光玻璃的面积为LED芯片的顶面出光面的面积的1-1.1倍。所述围堰2内填充有挡光胶6，所述挡光胶6遮盖LED芯片3的侧面；挡光胶6可以是白胶，用于将LED芯片3侧面的出光进行遮挡，去除多余的杂光。所述基板1的底部的两端设有两个电极7，一个电极为正极，一个为负极；所述基板1上对应所述电极处设有导通孔8，所述电极7通过设置在导通孔8内的导电连接件9与线路层电性连接，导电连接件9可以是导线或在导通孔8内注铜形成导电柱。所述基板1的底部设有导热层10，车灯光源的热量通过导热层快速散发。
如图3所示，本发明的制造工艺：
(1)制作基板：包括在基板的顶面设置线路层，在基板的底部设置电极，电极与线路层电性连接；
(2)通过固晶机将LED芯片固定在功能区上；LED芯片呈一字型排列；
(3)切割出面积与LED芯片顶面面积大小的荧光玻璃；
(4)在每个LED芯片的顶面出光面上涂耐热胶，利用固晶机将荧光玻璃固定在LED芯片的顶面；
(5)沿功能区的边缘设置长方形的围堰，围堰将LED芯片围闭；
(6)在围堰内填充挡光胶，挡光胶流平后将LED芯片的侧面遮蔽；所述挡光胶的填充方式：设置两个点胶头，分别位于LED芯片的两侧，沿围堰长度方向，从围堰的一端向另一端移动点胶，或也可以单点点胶的方式实现。
实施例2
如图4、5所示，一种LED前照灯光源，包括安装座12和光源。所述光源包括设置安装座12上的近光光源和远光光源，本发明在一个安装座上集成近光和远光功能，通过分别启用切换近光光源和远光光源来切换近光光源和远光光源。所述安装座12的顶面和底面均设有两个LED发光单元11，位于顶面的两个LED发光单元11的位置相互错开，位于底面的两个LED发光单元11的位置相互错开；顶面的两个LED发光单元11与底面的两个LED发光单元11呈上下一一对应，对应两个LED发光单元11组成近光光源14，另外对应的两个LED发光单元11组成远光光源15。
如图6、7所示，所述LED发光单元11包括长方形的基板1，所述基板1上设有功能区4，所述功能区4呈长方形，所述功能区4上设有若干呈一字型排列的LED芯片3，LED芯片3基本位于功能区4的中间位置。功能区4的外围设有沿功能区4边缘设置的围堰2，围堰2为长方形的框体结构，围堰2的高度比LED芯片3的顶面高，并且能够将LED芯片3围闭在一个长方形的空间内。每个所述LED芯片3的顶面出光面均独立覆盖有荧光层，所述荧光层的形状与LED芯片3的顶面出光面的形状相似，本实施例的荧光层为荧光玻璃5，荧光玻璃5耐热，而且施工工艺简单，通过固晶机即可 完成LED芯片3和荧光玻璃5的固定。所述围堰2内填充有挡光胶6，所述挡光胶6遮盖LED芯片3的侧面；挡光胶6可以是白胶，用于将LED芯片3侧面的出光进行遮挡，去除多余的杂光。
本发明的近光光源和远光光源均采用两个LED发光单元形成，两个LED发光单元分别位于安装座12的顶面和底面，充分利用有限的空间来设置光源的位置，在增加亮度的同时，尽量的少占用空间，结构简单。

Claims (19)

  1. 一种LED车灯光源，包括基板，所述基板上设有功能区，所述功能区上设有若干LED芯片，所述功能区呈长方形，功能区的外围设有围堰将LED芯片围闭；其特征在于：每个所述LED芯片的顶面出光面均独立覆盖有荧光玻璃；所述围堰内设有挡光胶，所述挡光胶遮盖LED芯片的侧面。
  2. 根据权利要求1所述的一种LED车灯光源，其特征在于：所述荧光玻璃的形状与LED芯片的顶面出光面的形状相似。
  3. 根据权利要求1所述的一种LED车灯光源，其特征在于：LED芯片的顶面出光面和荧光玻璃的形状均为方形。
  4. 根据权利要求1所述的一种LED车灯光源，其特征在于：荧光玻璃的面积为LED芯片的顶面出光面的面积的1-1.1倍。
  5. 根据权利要求1所述的一种LED车灯光源，其特征在于：所述LED芯片呈一字型排列。
  6. 根据权利要求1所述的一种LED车灯光源，其特征在于：所述荧光玻璃通过耐热胶粘接在LED芯片的顶面出光面上。
  7. 根据权利要求1所述的一种LED车灯光源，其特征在于：所述基板的底部设有两个电极，所述基板上对应所述电极处设有导通孔，所述电极通过设置在导通孔内的导电连接件与基板顶面的线路层电性连接。
  8. 根据权利要求1所述的一种LED车灯光源，其特征在于：所述基板的底部对应LED芯片的下方设有导热层。
  9. 一种LED前照灯光源，其特征在于：包括安装座和光源，所述光源包括设置安装座上的近光光源和远光光源；所述安装座的顶面和底面均设有两个LED发光单元，顶面的两个LED发光单元与底面的两个LED发光单元呈上下一一对应，对应的两个LED发光单元组成近光光源，另外对应的两个LED发光单元组成远光光源；所述LED发光单元包括基板，所述基板上设有功能区， 所述功能区上设有若干LED芯片，所述功能区呈长方形，功能区的外围设有围堰将LED芯片围闭；每个所述LED芯片的顶面出光面均独立覆盖有荧光层。
  10. 根据权利要求9所述的一种LED前照灯光源，其特征在于：位于顶面的两个LED发光单元的位置相互错开；位于底面的两个LED发光单元的位置相互错开。
  11. 根据权利要求9所述的一种LED前照灯光源，其特征在于：所述荧光层为荧光玻璃。
  12. 根据权利要求9所述的一种LED前照灯光源，其特征在于：所述荧光层的形状与LED芯片的顶面出光面的形状相似。
  13. 根据权利要求9所述的一种LED前照灯光源，其特征在于：所述围堰内设有挡光胶，所述挡光胶遮盖LED芯片的侧面。
  14. 根据权利要求9所述的一种LED前照灯光源，其特征在于：所述LED芯片呈一字型排列。
  15. 根据权利要求11所述的一种LED前照灯光源，其特征在于：所述荧光玻璃通过耐热胶粘接在LED芯片的顶面出光面上。
  16. 一种LED车灯光源的制造方法，其特征在于，包括以下步骤：
    (1)制作基板：包括在基板的顶面设置线路层，在基板的底部设置电极，电极与线路层电性连接；
    (2)将LED芯片固定在功能区上；LED芯片呈一字型排列；
    (3)切割出面积与LED芯片顶面面积大小的荧光玻璃；
    (4)在每个LED芯片的顶面出光面上涂耐热胶，将荧光玻璃固定在LED芯片的顶面；
    (5)沿功能区的边缘设置长方形的围堰，围堰将LED芯片围闭；
    (6)在围堰内填充挡光胶，挡光胶流平后将LED芯片的侧面遮蔽。
  17. 根据权利要求16所述的一种LED车灯光源的制造方法，其特征在于：所述挡光胶的填充方式：沿围堰长度方向，从围堰的一端向另一端移动点胶。
  18. 根据权利要求17所述的一种LED车灯光源的制造方法，其特征 在于：设有两个点胶头，分别位于LED芯片的两侧。
  19. 根据权利要求16所述的一种LED车灯光源的制造方法，其特征在于：步骤(4)中具体包括：在每个LED芯片的顶面出光面上涂耐热胶，利用固晶机将荧光玻璃固定在LED芯片的顶面。
PCT/CN2016/077949 2015-12-24 2016-03-31 一种led车灯光源、前照灯光源及车灯光源制造方法 WO2017107335A1 (zh)

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