WO2014059708A1 - Led motor vehicle headlamp - Google Patents

Led motor vehicle headlamp Download PDF

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Publication number
WO2014059708A1
WO2014059708A1 PCT/CN2012/084181 CN2012084181W WO2014059708A1 WO 2014059708 A1 WO2014059708 A1 WO 2014059708A1 CN 2012084181 W CN2012084181 W CN 2012084181W WO 2014059708 A1 WO2014059708 A1 WO 2014059708A1
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WO
WIPO (PCT)
Prior art keywords
led
lamp
motor vehicle
light
circuit board
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PCT/CN2012/084181
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French (fr)
Chinese (zh)
Inventor
蔡锦辉
Original Assignee
Cai Jinhui
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Publication date
Priority to CN2012205312129U priority Critical patent/CN202868531U/en
Priority to CN201220531212.9 priority
Application filed by Cai Jinhui filed Critical Cai Jinhui
Publication of WO2014059708A1 publication Critical patent/WO2014059708A1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangements or adaptations of optical signalling or lighting devices
    • B60Q1/0029Spatial arrangement
    • B60Q1/0041Spatial arrangement of several lamps in relation to each other
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141Light emitting diodes [LED]
    • F21S41/147Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • 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
    • F21S45/47Passive cooling, e.g. using fins, thermal conductive elements or openings
    • F21S45/48Passive 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

Abstract

Disclosed is an LED motor vehicle headlamp, for overcoming the defects in the prior art such as mutual blockage between the lights of a low-beam headlight and a high-beam headlight in the headlamp, dazzle caused by the brightest central luminous point of the LED lamp shinning straight forward, nonuniform brightness of the light beams shinning forward, and dead angle of light receiving of a reflector. The LED motor vehicle headlamp comprises a lamp cup body (1), a reflector (2), a light transmitting lens (3), LED lamps (4), an LED drive circuit board (5) and a heat sink (6) correspondingly installed and fitted; the hollow of the lamp cup body (1) is divided into an upper part (8) and a lower part by a horizontal baffle (7); the inner wall surface of the upper part (8) is provided with a low-beam headlight reflector (9); the lower part is divided into a left portion (11) and a right portion (12) by a baffle (10); the inner wall surfaces of the left portion (11) and the right portion (12) are respectively provided with a high-beam headlight reflector (13, 14); an LED lamp (4) is arranged on the baffles in the upper part (8), left part (11) and right part (12) respectively; the central luminous points of the LED lamps (4) face the direction perpendicular to the baffle (7), and shine straight on the low-beam headlight reflector (9) or the high-beam headlight reflector (13, 14) respectively.

Description

一种LED型的机动车前照灯 LED type motor vehicle headlight
技术领域 Technical field
本实用新型属于机动车的照明灯具,特别是一种LED型的机动车前照灯。 The utility model belongs to a lighting fixture of a motor vehicle, in particular to an LED type motor vehicle headlight.
背景技术 Background technique
目前普遍使用的同类机动车 前照灯,结构一般由灯罩、灯壳、反光碗、灯丝灯泡、灯座、防尘盖、灯光调整螺钉等组成。灯泡内有两条灯丝,一条为远光灯丝,一条为近光灯丝。远光灯丝位于反光碗的焦点上,其反射光线是平行水平光线,在配光屏幕上呈椭圆状光斑;近光灯丝则位于反光碗焦点的上方,其反射光线为向下的平行光线,在配光屏幕上产生明暗截止线。前照灯的灯光高低可以通过灯光调整螺钉来进行调节。这种采用灯丝灯泡的前照灯存在照明耗电耗能较大、熄火情况下照明持续时间短、灯泡寿命短等缺陷。因此目前已经出现了采用LED光源的前车灯,用以克服照明耗电耗能较大、熄火情况下照明持续时间短、灯泡寿命短等问题。 Similar vehicles currently in common use The headlights are generally composed of a lampshade, a lamp housing, a reflective bowl, a filament bulb, a lamp holder, a dust cover, and a light adjustment screw. There are two filaments in the bulb, one for the high beam and one for the low beam. The high beam is located at the focus of the reflective bowl, and the reflected light is parallel horizontal light, and has an elliptical spot on the light distribution screen; the low beam filament is located above the focus of the reflective bowl, and the reflected light is downward parallel light. A cut-off line is formed on the light distribution screen. The headlights can be adjusted by the light adjustment screws. Such a headlamp using a filament bulb has drawbacks such as large energy consumption of lighting, short duration of illumination in the event of flameout, and short lamp life. Therefore, the front lamp adopting the LED light source has been appeared to overcome the problems of large energy consumption of the lighting, short duration of illumination in the case of flameout, and short lamp life.
中国专利第201110375197.3号提供了一种LED前车灯,可以用作 机动车 前照灯。其结构包括近光灯组,远光灯组,PCB板,散热器;所述近光灯组和远光灯组安装于PCB板上,所述PCB板后部装有散热器;其特征在于:所述近光灯组包括一颗LED灯和一个近光杯;所述远光灯组包括一颗LED灯和一个远光杯;所述近光杯和远光杯内面为镜面,并且该镜面沿轴向分割为数个非规则的自由曲面;所述近光杯和远光杯的杯体均沿轴向上分为至少3段,每一段对不同的区域进行照明。这一技术方案的缺陷:一是由于远光杯和近光杯为同轴线布置且按轴线作前后排列,所以造成反光镜和灯体的总长度较长,作 机动车 前照灯不好布置,与处在外段光杯相配合的LED灯也不便于固定安装、且对内段光杯发射的光线和与其配合的LED灯发射的光线造成一定的遮挡;二是由于LED灯最亮的中心发光点朝前方直照,会对来车驾驶员和其它道路使用者造成眩目或不舒适感,容易产生交通事故,车辆道路行驶安全效果差,而且光照不均匀性过大,照明效果不佳甚至有害。 Chinese Patent No. 201110375197.3 provides an LED front light that can be used as a motor vehicle Headlights. The structure comprises a low beam group, a high beam group, a PCB board and a heat sink; the low beam group and the high beam group are mounted on the PCB board, and the rear part of the PCB board is provided with a heat sink; The low beam group includes an LED lamp and a low beam; the high beam group includes an LED lamp and a high beam; the inner surface of the low beam and the high beam are mirrored, and the The mirror surface is divided into a plurality of irregular free-form surfaces along the axial direction; the cups of the low-light cup and the high-beam cup are respectively divided into at least three segments in the axial direction, and each segment illuminates different regions. The shortcomings of this technical solution are as follows: because the high beam and the low beam are arranged coaxially and arranged in front and rear according to the axis, the total length of the mirror and the lamp body is long. Motor vehicle The headlights are not well arranged, and the LED lights that are matched with the outer light cups are not convenient for fixed installation, and the light emitted by the inner light cups and the light emitted by the LED lights cooperated with them are blocked; secondly, The brightest central light-emitting point of the LED light is directed straight ahead, which will cause dazzling or uncomfortable feeling to the driver and other road users. It is easy to cause traffic accidents, the road driving safety effect is poor, and the illumination unevenness is excessive. Large, poor lighting or even harmful.
中国专利第201120376957.8号提供了一种具有温度保护功能的LED车灯。其结构包括反光碗、固定于反光碗上的LED驱动电路单元和LED芯片,其特征在于:所述的LED芯片的芯片基座上设有温度传感器,所述的温度传感器的信号输出端与LED驱动电路单元的反馈信号输入端连接。从图示上,LED灯的最亮中心发光点的朝向与光杯轴线构成90°夹角,即LED灯最亮中心发光点是朝向反光碗,由反光碗折射向前方,可以解决LED灯最亮的中心发光点造成眩眼的问题。但这一技术方案由于存在这样的缺陷而不合适用作为 机动车 前照灯:一是不能实现一个车灯同时具有近光和远光变换;二是反光碗的反光面下侧形成受光死角,使得向前照射的光束亮度不均匀,照明效果不佳。 Chinese Patent No. 201120376957.8 provides an LED lamp with temperature protection function. The structure comprises a reflective bowl, an LED driving circuit unit fixed on the reflective bowl and an LED chip, wherein the LED chip has a temperature sensor on the chip base, and the signal output end of the temperature sensor and the LED The feedback signal input terminal of the drive circuit unit is connected. From the illustration, the direction of the brightest central light-emitting point of the LED light forms an angle of 90° with the axis of the light cup, that is, the brightest central light-emitting point of the LED light is toward the reflective bowl, which is refracted toward the front by the reflective bowl, and can solve the most The bright central glow point causes glare problems. However, this technical solution is not suitable for use due to such defects. Motor vehicle headlights: First, it is impossible to realize a headlight with both low beam and high beam conversion; second, the lower side of the reflective surface of the reflective bowl forms a light-receiving corner, so that the brightness of the forward-illuminated beam is uneven, and the illumination effect is not good.
发明内容 Summary of the invention
为了克服现有可以作为机动车 前照灯的车灯存在一个车灯内近光灯和远光灯之间的光线相互遮挡、LED灯最亮的中心发光点朝前方直照造成眩眼和向前照射的光束亮度不均匀、反光镜存在受光死角等缺陷,本实用新型的目的是提供一种改进的 LED 型的机动车前照灯 ,可以克服现有技术的缺陷。 In order to overcome the existing The headlights of the headlights have a light between the low beam and the high beam in the headlights, and the brightest central light emitting point of the LED lights directly toward the front, causing glare and uneven illumination of the forward beam. The mirror has defects such as light dead angle, and the object of the present invention is to provide an improved LED type motor vehicle headlamps can overcome the drawbacks of the prior art.
本实用新型解决其技术问题所采用的技术方案是 :一种LED型的机动车前照灯 ,包括灯杯体、反光镜、透光镜、LDE灯、LED驱动电路板和散热器,其中反光镜设于灯杯体内壁面上,透光镜设于灯杯体前端口上,散热器设于灯杯体上,LED驱动电路板安装于散热器上,LDE灯连接固定于LED驱动电路板上且处于灯杯体内,LED驱动电路板的电源端通过导线可接往灯外电源,其特征是:所述灯杯体内腔由呈水平状态的隔板分割为上侧部分和下侧部分,上侧部分的内壁面设置着一近光灯反光镜,下侧部分由隔板分隔为左侧部分和右侧部分,左侧部分和右侧部分的内壁面分别设置着一远光灯反光镜,所述上侧部分、左侧部分和右侧部分内在呈水平状态的隔板上分别布置有一所述LDE灯,LDE灯中心发光点的朝向与呈水平状态的隔板垂直而分别直照着所述近光灯反光镜或远光灯反光镜 。 The technical solution adopted by the utility model to solve the technical problem is: an LED type motor vehicle headlight The utility model comprises a lamp cup body, a mirror, a light transmitting mirror, an LDE lamp, an LED driving circuit board and a heat sink, wherein the mirror is arranged on the inner wall surface of the lamp cup, the light transmitting mirror is arranged on the front port of the lamp cup body, and the radiator is provided On the lamp cup body, the LED driving circuit board is mounted on the heat sink, the LDE lamp is connected and fixed on the LED driving circuit board and is in the lamp cup body, and the power end of the LED driving circuit board can be connected to the lamp external power source through the wire, and its characteristics Yes: the inner cavity of the lamp cup is divided into an upper side portion and a lower side portion by a horizontally-shaped partition plate, the inner wall surface of the upper side portion is provided with a low beam reflector, and the lower side portion is partitioned by the partition plate to the left side. a portion of the right side portion, the left side portion and the inner wall portion of the right side portion are respectively provided with a high beam reflector, and the upper side portion, the left side portion and the right side portion are respectively disposed on the horizontally-displaced partition plate The LDE lamp, the center of the LDE lamp has a light-emitting point oriented perpendicular to the horizontally-shaped partition plate and directly illuminates the low beam reflector or the high beam reflector respectively .
上述技术方案的所述 散热器可以安装在灯杯体外侧背面上,散热器的吸热端从所述呈水平状态的隔板的外侧背面伸入呈水平状态的隔板内,所述LED驱动电路板安装在散热器的吸热端上、LED驱动电路板上的LDE灯分别由所述呈水平状态的隔板上的孔口暴露于所述上侧部分、左侧部分或右侧部分内 。 The above technical solution The heat sink may be mounted on the outer back surface of the lamp cup body, and the heat absorbing end of the heat sink extends from the outer back surface of the horizontally-shaped partition plate into the horizontally-shaped partition plate, and the LED driving circuit board is mounted on the heat sink. The LDE lamps on the LED drive circuit board are exposed to the upper side portion, the left side portion or the right side portion respectively by the apertures on the horizontally-displaced partition plate .
上述技术方案的所述将 下侧部分分隔成左侧部分和右侧部分的隔板可以为一带有双弧线的隔板,该双弧线与呈水平状态的隔板一起构成所述两个远光灯反光镜的边缘。 The above technical solution will The partition partitioned into the left side portion and the right side portion of the lower side portion may be a partition having a double arc which, together with the partition plate in a horizontal state, constitutes the edge of the two high beam mirrors .
上述技术方案的 所述左侧部分和右侧部分之间的隔板上可以设置有一前位置灯。 A front position light may be disposed on the partition between the left side portion and the right side portion of the above technical solution.
上述技术方案的所述 前位置灯可以是一LED灯或白炽灯等。 The front position light of the above technical solution may be an LED lamp or an incandescent lamp or the like.
上述技术方案的所述 灯杯体的内腔部,从正面看可以是呈圆形状。 The inner cavity portion of the lamp cup body of the above aspect may have a circular shape when viewed from the front.
上述技术方案的所述布置在 上侧部分的LDE灯可以是处于远光灯反光镜的焦点上方位置,以使近光灯反光镜所反射的光线为向下的平行光线,在配光屏幕上产生明暗截止线;所述布置在左侧部分和右侧部分的LDE灯可以是处于各自的远光灯反光镜的焦点位置,以使远光灯反光镜所反射的光线为平行水平光线,在配光屏幕上呈明亮椭圆状光斑。 The arrangement of the above technical solution is The LDE lamp of the upper side portion may be located above the focus of the high beam reflector such that the light reflected by the low beam reflector is a downward parallel light, and a cut-off line is generated on the light distribution screen; The LDE lamps in the left and right portions may be in the focus position of the respective high beam mirrors such that the light reflected by the high beam reflector is parallel horizontal light and brightly elliptical on the light distribution screen. Spot.
上述技术方案的所述 LED 驱动电路板可以由印刷电路板体和安装在其上的电路部分构成,电路部分可以由型号AL8806的驱动器集成电路及其外围的稳压二极管、电容、电阻、电感器作对应连接构成。 The LED of the above technical solution The driving circuit board can be composed of a printed circuit board body and a circuit portion mounted thereon, and the circuit portion can be constituted by a driver integrated circuit of the model AL8806 and a peripheral Zener diode, a capacitor, a resistor and an inductor.
本实用新型的有益效果:由于灯杯体内腔由呈水平状态的隔板分割为上侧部分和下侧部分,上侧部分的内壁面设置着一近光灯反光镜,下侧部分由隔板分隔为左侧部分和右侧部分,左侧部分和右侧部分的内壁面分别设置着一远光灯反光镜,所述上侧部分、左侧部分和右侧部分内在呈水平状态的隔板上分别布置有一所述LDE灯,所以前照灯能够实现远、近灯光变换,且前照灯内的近光灯和远光灯之间的光线不会出现相互遮挡的问题;由于LDE灯中心发光点的朝向与呈水平状态的隔板相垂直而分别直照着所述近光灯反光镜或远光灯反光镜,不会朝前方直照,这样光线均通过反光镜的反射而朝前平行射出,光线比较柔和,光束亮度比较均匀,特别是对来车驾驶员和其它道路使用者不存在眩目或不舒适感,可以减少发生交通事故,提高车辆道路行驶安全性;由于灯杯体内腔由呈水平状态的隔板分割为上侧部分和下侧部分,LDE灯是布置在呈水平状态的隔板上,上侧部分、左侧部分或右侧部分内壁面都不会产生受光死角,所以向前照射的光束亮度均匀,照明效果好; 由于采用 LED 灯作为光源,所以整车电路承载的电流小,电缆短路的几率小,不容易发热,有利于道路行驶安全; 由于所述左侧部分和右侧部分之间的隔板上还可以设置前位置灯,所以前位置灯 可以组合在机动车的前照灯内,提高了前照灯的使用功能,节省了机动车要另外安装 前位置灯的费用 。 The utility model has the beneficial effects that since the inner cavity of the lamp cup is divided into the upper side part and the lower side part by the partition plate in a horizontal state, the inner wall surface of the upper side part is provided with a low beam reflector and the lower side part is partitioned by the partition plate. Separated into a left side portion and a right side portion, the left side portion and the right side portion are respectively provided with a high beam mirror, and the upper side portion, the left side portion and the right side portion are in a horizontal state. Each of the LDE lamps is arranged on the upper side, so that the headlights can realize the far and near light changes, and the light between the low beam and the high beam in the headlight does not have mutual occlusion; due to the LDE lamp center The light-emitting point is oriented perpendicular to the horizontally-displaced partition and directly illuminates the low beam reflector or the high beam reflector, respectively, and does not directly face forward, so that the light is reflected forward by the reflection of the mirror Parallel injection, soft light, uniform beam brightness, especially for the driver and other road users, there is no glare or discomfort, can reduce traffic accidents and improve vehicle road safety; The inner cavity of the lamp cup is divided into an upper side part and a lower side part by a horizontally-shaped partition plate, and the LDE lamp is arranged on the horizontally-displaced partition plate, and the upper side part, the left side part or the right side part inner wall surface are not Will produce a light dead angle, so the forward beam is uniform in brightness and the lighting effect is good; Since the LED light is used as the light source, the current carried by the whole vehicle circuit is small, the probability of the cable short circuit is small, and it is not easy to generate heat, which is beneficial to road driving safety; Since the front position light can also be disposed on the partition between the left side portion and the right side portion, the front position light can be combined in the headlight of the motor vehicle, thereby improving the use function of the headlight and saving the machine. Motor car to be installed separately The cost of the front position light.
以下结合实施例对本实用新型作更具体的描述。 The present invention will be more specifically described below in conjunction with the embodiments.
附图说明 DRAWINGS
图1是本实用新型一个实施例的正面示意图。 1 is a front elevational view of one embodiment of the present invention.
图2是图1的A-A剖视示意图。 Figure 2 is a cross-sectional view taken along line A-A of Figure 1.
图3是图1的B-B剖视示意图。 Figure 3 is a cross-sectional view taken along line B-B of Figure 1.
图4是图1的任一个LED驱动电路板上电路部分的线路原理图。 4 is a circuit schematic diagram of a circuit portion of any of the LED drive circuit boards of FIG. 1.
图中:1、灯杯体;2、反光镜;3、透光镜;4、LDE灯;5、LED驱动电路板;6、散热器;7、呈水平状态的隔板;8、上侧部分;9、近光灯反光镜;10、隔板;11、左侧部分;12、右侧部分;13和14、远光灯反光镜;15、前位置灯;16、吸热端;17、孔口;18和19、LDE灯。 In the figure: 1, lamp cup body; 2, mirror; 3, light-transmitting mirror; 4, LDE lamp; 5, LED drive circuit board; 6, radiator; 7, horizontal state of the partition; 8, upper side Part; 9, low beam reflector; 10, partition; 11, left part; 12, right part; 13 and 14, high beam reflector; 15, front position light; 16, endothermic end; , orifice; 18 and 19, LDE lamps.
具体实施方式 detailed description
参照图1~图3,本LED型的机动车前照灯 ,包括灯杯体1、反光镜2等、透光镜3、LDE灯4等、LED驱动电路板5等和散热器6,其中反光镜2设于灯杯体1内壁面上,透光镜3设于灯杯体1前端口上,散热器6设于灯杯体1上,LED驱动电路板5安装于散热器6上,LDE灯4连接固定于LED驱动电路板5上且处于灯杯体1内,LED驱动电路板5的电源端通过导线可接往灯外电源,其特征是:所述灯杯体1内腔由呈水平状态的隔板7分割为上侧部分8和下侧部分,上侧部分8的内壁面设置着一近光灯反光镜9,下侧部分由隔板10分隔为左侧部分11和右侧部分12,左侧部分11和右侧部分12的内壁面分别设置着一远光灯反光镜13、14,所述上侧部分8、左侧部分11或右侧部分12内在呈水平状态的隔板7上分别布置有一所述LDE灯4等,LDE灯4等的中心发光点的朝向与呈水平状态的隔板7垂直而分别直照着所述近光灯反光镜9或远光灯反光镜13、14。 Referring to Figures 1 to 3, the LED type motor vehicle headlights The utility model comprises a lamp cup body 1, a mirror 2, a light transmissive mirror 3, an LDE lamp 4, etc., an LED driving circuit board 5 and the like, and a heat sink 6, wherein the mirror 2 is disposed on the inner wall surface of the lamp cup body 1 and the light transmitting mirror 3 is disposed on the front port of the lamp cup body 1, the heat sink 6 is disposed on the lamp cup body 1, the LED driving circuit board 5 is mounted on the heat sink 6, and the LDE lamp 4 is connected and fixed on the LED driving circuit board 5 and is in the lamp cup In the body 1, the power supply end of the LED driving circuit board 5 can be connected to the external power source through the wire, and the inner cavity of the lamp cup body 1 is divided into the upper side portion 8 and the lower side by the partition plate 7 in a horizontal state. In part, the inner wall surface of the upper side portion 8 is provided with a low beam mirror 9, and the lower portion is partitioned by the partition 10 into the left side portion 11 and the right side portion 12, and the inner wall portions of the left side portion 11 and the right side portion 12 are provided. A high-beam reflectors 13 and 14 are respectively disposed, and the LDE lamps 4 and the like are arranged on the partitions 7 in the horizontal state in the upper side portion 8, the left side portion 11 or the right side portion 12, respectively, and the LDE lamps are arranged. The center light-emitting points of 4 and the like are oriented perpendicular to the horizontally-deposited partitions 7 and directly illuminate the low beam mirrors 9 or the high beam mirrors 13, 14 respectively.
另外, 所述左侧部分11和右侧部分12之间的隔板10上设置有一前位置灯15 ; 散热器6安装在灯杯体1外侧背面上,散热器6的吸热端14从所述呈水平状态的隔板7的外侧背面伸入呈水平状态的隔板7内,所述LED驱动电路板5等分别安装在散热器6的吸热端16上下两侧面、LED驱动电路板5等上的LDE灯4等分别由所述呈水平状态的隔板7上的孔口17等分别暴露于所述上侧部分8、左侧部分11或右侧部分12内 ;将 下侧部分分隔成左侧部分11和右侧部分12的隔板10为一具有双弧线的隔板,该双弧线与呈水平状态的隔板7一起构成所述两个远光灯反光镜13、14的边缘;前位置灯是一LED灯;如图1所示,灯杯体的内腔部,从正面看是呈圆形状; 布置在 上侧部分8的LDE灯4是处于近光灯反光镜9的焦点上方位置,以使近光灯反光镜9所反射的光线为向下的平行光线;布置在左侧部分11和右侧部分12的LDE灯18、19是分别处于远光灯反光镜13、14的焦点位置,以使远光灯反光镜13、14所反射的光线为平行水平光线。 In addition, a front position light 15 is disposed on the partition 10 between the left side portion 11 and the right side portion 12; The heat sink 6 is mounted on the outer back surface of the lamp cup body 1, and the heat absorbing end 14 of the heat sink 6 extends from the outer back surface of the horizontally-disposed partition plate 7 into the partition plate 7 in a horizontal state, the LED drive circuit The LDE lamps 4 and the like which are respectively mounted on the upper and lower sides of the heat absorbing end 16 of the heat sink 6, the LED drive circuit board 5, and the like are respectively exposed by the apertures 17 and the like on the partition plate 7 in the horizontal state, respectively. The upper side portion 8, the left side portion 11 or the right side portion 12 Will The partition 10, which is partitioned into the left side portion 11 and the right side portion 12, is a partition having a double arc which, together with the partition plate 7 in a horizontal state, constitutes the reflection of the two high beam lights The edge of the mirrors 13 and 14; the front position lamp is an LED lamp; as shown in Fig. 1, the inner cavity portion of the lamp cup body has a circular shape when viewed from the front; Arranged in The LDE lamp 4 of the upper side portion 8 is at a position above the focus of the low beam mirror 9 such that the light reflected by the low beam mirror 9 is a downward parallel light; the left portion 11 and the right portion are arranged. The LDE lamps 18, 19 of 12 are in the focus positions of the high beam reflectors 13, 14, respectively, so that the light reflected by the high beam reflectors 13, 14 is parallel horizontal light.
参照图4, LED 驱动电路板5上电路部分的线路原理图,由型号AL8806的驱动器集成电路IC及其外围的稳压二极管D1和D2、电容C1~C4、电阻R1~R3、电感器L作对应连接构成,灯外电源由稳压二极管D1输入后,经过IC的处理后,从IC的1脚输出驱动信号,驱动LED灯发光。 Referring to Figure 4, LED The circuit schematic diagram of the circuit part on the driving circuit board 5 is composed of the driver integrated circuit IC of the model AL8806 and its peripheral Zener diodes D1 and D2, capacitors C1 to C4, resistors R1 to R3, and inductor L for corresponding connection. After the external power supply is input from the Zener diode D1, after the IC process, the drive signal is output from the 1 pin of the IC to drive the LED light to emit light.

Claims (7)

  1. 一种LED型的机动车前照灯,包括灯杯体、反光镜、透光镜、LDE灯、LED驱动电路板和散热器,其中反光镜设于灯杯体内壁面上,透光镜设于灯杯体前端口上,散热器设于灯杯体上,LED驱动电路板安装于散热器上,LDE灯连接固定于LED驱动电路板上且处于灯杯体内,LED驱动电路板的电源端通过导线可接往灯外电源,其特征是:所述灯杯体内腔由呈水平状态的隔板分割为上侧部分和下侧部分,上侧部分的内壁面设置着一近光灯反光镜,下侧部分由隔板分隔为左侧部分和右侧部分,左侧部分和右侧部分的内壁面分别设置着一远光灯反光镜,所述上侧部分、左侧部分和右侧部分内在呈水平状态的隔板上分别布置有一所述LDE灯,LDE灯中心发光点的朝向与呈水平状态的隔板垂直而分别直照着所述近光灯反光镜或远光灯反光镜。An LED type motor vehicle headlight includes a lamp cup body, a mirror, a light transmitting mirror, an LDE lamp, an LED driving circuit board and a heat sink, wherein the mirror is disposed on the inner wall surface of the lamp cup, and the light transmitting mirror is disposed on the On the front port of the lamp cup body, the heat sink is disposed on the lamp cup body, the LED driving circuit board is mounted on the heat sink, the LDE lamp is connected and fixed on the LED driving circuit board and is in the lamp cup body, and the power end of the LED driving circuit board passes The wire can be connected to the external power source of the lamp, wherein the inner cavity of the lamp cup is divided into an upper side portion and a lower side portion by a horizontally-shaped partition plate, and a low beam reflector is disposed on the inner wall surface of the upper side portion. The lower side portion is partitioned into a left side portion and a right side portion by a partition plate, and the inner wall surfaces of the left side portion and the right side portion are respectively provided with a high beam mirror, the upper side portion, the left side portion and the right side portion being inner The LDE lamps are respectively arranged on the horizontally-displaced partitions, and the central light-emitting points of the LDE lamps are oriented perpendicular to the horizontally-shaped partitions and directly illuminate the low beam reflectors or the high beam reflectors, respectively.
  2. 按权利要求1所述的LED型的机动车前照灯,其特征是所述散热器安装在灯杯体外侧背面上,散热器的吸热端从所述呈水平状态的隔板的外侧背面伸入呈水平状态的隔板内,所述LED驱动电路板安装在散热器的吸热端上、LED驱动电路板上的LDE灯分别由所述呈水平状态的隔板上的孔口暴露于所述上侧部分、左侧部分或右侧部分内。 The LED type motor vehicle headlamp according to claim 1, wherein said heat sink is mounted on the outer back surface of the lamp cup body, and the heat absorbing end of the heat sink is from the outer side of the horizontally-shaped partition plate. Extending into a horizontally-shaped partition, the LED driving circuit board is mounted on the heat absorbing end of the heat sink, and the LDE lamps on the LED driving circuit board are respectively exposed by the apertures in the horizontally-shaped partition plate In the upper side portion, the left side portion or the right side portion.
  3. 按权利要求1或2所述的LED型的机动车前照灯,其特征是所述将下侧部分分隔成左侧部分和右侧部分的隔板为一带有双弧线的隔板,该双弧线与呈水平状态的隔板一起构成所述两个远光灯反光镜的边缘。The LED type motor vehicle headlight according to claim 1 or 2, wherein the partition partitioning the lower side portion into the left side portion and the right side portion is a partition having a double arc, The double arc forms the edge of the two high beam mirrors together with the horizontally shaped partition.
  4. 按权利要求1或2所述的LED型的机动车前照灯,其特征是所述左侧部分和右侧部分之间的隔板上设置有一前位置灯。 The LED type motor vehicle headlamp according to claim 1 or 2, wherein a front position lamp is disposed on the partition between the left side portion and the right side portion.
  5. 按权利要求1或2所述的LED型的机动车前照灯,其特征是所述所述灯杯体的内腔部,从正面看呈圆形状。The LED type motor vehicle headlight according to claim 1 or 2, wherein the inner cavity portion of the lamp cup body has a circular shape when viewed from the front.
  6. 按权利要求1或2所述的LED型的机动车前照灯,其特征是所述布置在上侧部分的LDE灯是处于远光灯反光镜的焦点上方位置,所述布置在左侧部分或右侧部分的LDE灯是处于各自的远光灯反光镜的焦点位置。The LED type motor vehicle headlight according to claim 1 or 2, wherein the LDE lamp disposed on the upper side portion is at a position above the focus of the high beam reflector, and the arrangement is on the left side portion. Or the LDE lamps on the right side are at the focus of their respective high beam reflectors.
  7. 按权利要求1或2所述的LED型的机动车前照灯,其特征是所述LED驱动电路板上电路部分,是由型号AL8806的驱动器集成电路及其外围的稳压二极管、电容、电阻、电感器作对应连接构成,灯外电源由稳压二极管输入后,从驱动器集成电路的1脚输出驱动信号,驱动LED灯发光。 The LED type motor vehicle headlight according to claim 1 or 2, wherein the circuit portion on the LED driving circuit board is a driver integrated circuit of the model AL8806 and a Zener diode, a capacitor and a resistor thereof. The inductor is configured as a corresponding connection. After the external power supply of the lamp is input by the Zener diode, a driving signal is output from the pin 1 of the driver integrated circuit to drive the LED lamp to emit light.
PCT/CN2012/084181 2012-10-17 2012-11-07 Led motor vehicle headlamp WO2014059708A1 (en)

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