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WO2014059916A1 - 一种led型的机动车前照灯 - Google Patents

一种led型的机动车前照灯 Download PDF

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Publication number
WO2014059916A1
WO2014059916A1 PCT/CN2013/085239 CN2013085239W WO2014059916A1 WO 2014059916 A1 WO2014059916 A1 WO 2014059916A1 CN 2013085239 W CN2013085239 W CN 2013085239W WO 2014059916 A1 WO2014059916 A1 WO 2014059916A1
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Prior art keywords
side portion
led
lamp
light
motor vehicle
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PCT/CN2013/085239
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English (en)
French (fr)
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蔡锦辉
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0029—Spatial arrangement
    • B60Q1/0041—Spatial arrangement of several lamps in relation to each other
    • 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]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • F21S45/48—Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device

Definitions

  • the utility model belongs to a lighting fixture of a motor vehicle, in particular to an LED type motor vehicle headlight.
  • the similar type of motor vehicle headlamps generally consist 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.
  • Chinese Patent No. 201110375197.3 provides an LED front light that can be used as a motor vehicle headlight.
  • 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 defects of this technical solution are as follows: First, since 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, and the headlights of the motor are not good. Arranged, the LED light matched with the outer section of the light cup is also not convenient for fixed installation, and the light emitted by the inner section of the light cup and the light emitted by the LED light matched with it are caused to be blocked; the second is because the LED light is the brightest
  • the central light-emitting point is directly facing forward, which may cause dazzling or uncomfortable feeling to the driver and other road users, and is prone to traffic accidents. The road driving safety effect is poor, and the illumination unevenness is too large, and the lighting effect is not Good or even harmful.
  • 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.
  • this technical solution is not suitable for use as a motor vehicle headlight due to such a defect: first, it is impossible to realize a vehicle lamp and has a low beam and a high beam conversion; and second, a lower side of the reflective surface of the reflective bowl forms a light-receiving angle, so that The forward-illuminated beam has uneven brightness and poor illumination.
  • the light between the low beam and the high beam in the headlights is mutually blocked, and the brightest central light emitting point of the LED light is directed toward the front to cause glare and direction.
  • the purpose of the present invention is to provide an improved LED-type motor vehicle headlamp that overcomes the deficiencies of the prior art, such as uneven brightness of the pre-illuminated beam and defects such as light-receiving angle of the mirror.
  • an LED type motor vehicle headlight comprising a lamp cup body, a mirror, a light transmitting mirror, an LED lamp, an LED driving circuit board and a heat sink, wherein the reflecting light
  • the mirror is disposed on the inner wall surface of the lamp cup
  • the light transmitting mirror is disposed 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 LED lamp is fixedly connected to the LED driving circuit board.
  • the power end of the LED driving circuit board can be connected to the external power source through the wire, wherein the inner cavity of the lamp cup is divided into the upper side part and the lower side part by the horizontal state partition plate, The inner wall surface of the side portion is provided with a low beam reflector, the lower portion is partitioned by the partition into a left side portion and a right side portion, and the left side portion and the inner wall portion of the right side portion are respectively provided with a high beam reflector.
  • the LED lamp is disposed on the upper side portion, the left side portion and the right side portion respectively in a horizontally-shaped partition plate, and the central light-emitting point of the LED lamp is perpendicular to the horizontally-shaped partition plate and directly illuminates directly Low beam reflector or high beam reflector.
  • the heat sink of the above technical solution 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 drive
  • the circuit board is mounted on the heat absorbing end of the heat sink, and the LED lights on the LED driving circuit board are respectively exposed to the upper side portion, the left side portion or the right side portion by the aperture on the horizontally-shaped partition plate .
  • the partition plate dividing the lower side portion into the left side portion and the right side portion of the above technical solution may be a partition having a double arc, and the double arc line together with the partition plate in a horizontal state constitutes the two The edge of the high beam reflector.
  • 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.
  • the front position light of the above technical solution may be an LED lamp or an incandescent lamp or the like.
  • the inner cavity portion of the lamp cup body of the above aspect may have a circular shape when viewed from the front.
  • the LED lamp disposed in the upper portion of the above technical solution may be located above the focus of the high beam reflector such that the light reflected by the low beam reflector is downward parallel light on the light distribution screen. Generating a cut-off line; the LED lights disposed in the left and right portions may be in focus positions of the respective high beam mirrors such that the light reflected by the high beam reflector is parallel horizontal light, A bright oval spot on the light distribution screen.
  • the LED driving circuit board of the above technical solution may be composed of a printed circuit board body and a circuit portion mounted thereon, and the circuit part may be a driver integrated circuit of the model AL8806 and its peripheral Zener diode, capacitor, resistor, inductor Make a corresponding connection.
  • 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 LED lights 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 headlights does not have mutual blocking problems;
  • 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-distributed partition plate, and the LED 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 The light-receiving angle will be generated, so the brightness of the forward-illuminated beam is uniform, and the lighting effect is
  • 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. The cost of the front position light is additionally installed on the motor train.
  • FIG. 1 is a front elevational view of one embodiment of the present invention.
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1.
  • Figure 3 is a cross-sectional view taken along line B-B of Figure 1.
  • FIG. 4 is a circuit schematic diagram of a circuit portion of any of the LED drive circuit boards of FIG. 1.
  • the LED type headlights of the LED type include a lamp cup body 1, a mirror 2, a light transmissive mirror 3, an LED 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.
  • the light transmissive 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, and the LED driving circuit board 5 is mounted on the heat sink 6.
  • the LED lamp 4 is connected and fixed on the LED driving circuit board 5 and is located in the lamp cup 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 surface of the lamp cup body 1 is
  • the partition plate 7 in a horizontal state is divided into an upper side portion 8 and a lower side portion, the inner wall surface of the upper side portion 8 is provided with a low beam mirror 9, and the lower side portion is partitioned by the partition plate 10 into a left side portion 11 and a right side.
  • the side wall portions 12, the inner wall surfaces of the left side portion 11 and the right side portion 12 are respectively provided with a high beam reflector 13, 14 which is horizontally present in the upper side portion 8, the left side portion 11 or the right side portion 12.
  • the LED lamp 4 and the like are disposed on the partition plate 7, and the central light-emitting point of the LED lamp 4 or the like is perpendicular to the horizontally-deposited partition plate 7 and directly illuminates the low beam light respectively.
  • a front position lamp 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 is
  • the outer back surface of the partition plate 7 in a horizontal state extends into the partition plate 7 in a horizontal state, and the LED drive circuit board 5 and the like are respectively mounted on the upper and lower sides of the heat absorbing end 16 of the heat sink 6, and the LED drive circuit board 5
  • the LED lamps 4 and the like are respectively exposed to the upper side portion 8, the left side portion 11 or the right side portion 12 by the apertures 17 and the like on the partition plate 7 in the horizontal state, respectively; the lower side portion is separated
  • the partition 10 which is 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 two high beam reflectors 13, 14
  • the front position lamp is an LED lamp; as shown in Fig.
  • the inner cavity portion of the lamp cup body has a circular shape when viewed from the front; the LED lamp 4 disposed on the upper side portion 8 is in the low beam mirror a position above the focus of 9 such that the light reflected by the low beam reflector 9 is a downward parallel ray; the left side portion 11 and the right side portion 12 are disposed.
  • the LED lamps 18, 19 are respectively at the focus positions of the high beam reflectors 13, 14 such that the light reflected by the high beam reflectors 13, 14 is a parallel horizontal light.
  • the circuit schematic diagram of the circuit portion on the LED driving circuit board 5 is performed by 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.
  • the external power supply of the lamp is input by the Zener diode D1
  • the driving signal is output from the 1 pin of the IC to drive the LED lamp to emit light.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

一种LED型的机动车前照灯，包括对应安装配合的灯杯体（1）、反光镜（2）、透光镜（3）、LED灯（4，18，19）、LED驱动电路板（5）和散热器（6），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），上侧部分（8）、左侧部分（11）和右侧部分（12）内在呈水平状态的隔板（7）上分别布置有LED灯（4，18，19），LED灯（4，18，19）中心发光点的朝向与呈水平状态的隔板（7）垂直而分别直照着近光灯反光镜（9）或远光灯反光镜（13，14）。该结构解决了现有技术存在车灯内近光灯和远光灯之间光线相互遮挡、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。

Description

一种LED型的机动车前照灯
技术领域
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。
背景技术
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。
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。
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。
发明内容
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。
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、LED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，LED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LED灯，LED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。
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LED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。
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。
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。
上述技术方案的所述前位置灯可以是一LED灯或白炽灯等。
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。
上述技术方案的所述布置在上侧部分的LED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LED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。
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。
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LED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LED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，LED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。
以下结合实施例对本实用新型作更具体的描述。
附图说明
图1是本实用新型一个实施例的正面示意图。
图2是图1的A-A剖视示意图。
图3是图1的B-B剖视示意图。
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。
图中：1、灯杯体；2、反光镜；3、透光镜；4、LED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、LED灯。
具体实施方式
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、LED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，LED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LED灯4等，LED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。
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LED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LED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LED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。
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。

Claims (1)

  1. 1.一种LED型的机动车前照灯，包括灯杯体、反光镜、透光镜、LED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，LED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LED灯，LED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。
    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LED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。
    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。
    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。
    5.按权利要求1或2所述的LED型的机动车前照灯，其特征是所述灯杯体的内腔部，从正面看呈圆形状。
    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LED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LED灯是处于各自的远光灯反光镜的焦点位置。
    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。
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