CN104566115A - LED car headlight - Google Patents

LED car headlight Download PDF

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Publication number
CN104566115A
CN104566115A CN201510018608.1A CN201510018608A CN104566115A CN 104566115 A CN104566115 A CN 104566115A CN 201510018608 A CN201510018608 A CN 201510018608A CN 104566115 A CN104566115 A CN 104566115A
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China
Prior art keywords
led
led lamp
pedestal
automobile headlamp
radiator
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CN201510018608.1A
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Chinese (zh)
Inventor
梁立新
叶明�
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Individual
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Individual
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Priority to CN201510018608.1A priority Critical patent/CN104566115A/en
Publication of CN104566115A publication Critical patent/CN104566115A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40Cooling of lighting devices
    • F21S45/42Forced cooling
    • F21S45/43Forced cooling using gas
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • 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]
    • 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • F21V23/006Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate being distinct from the light source holder
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00Exterior vehicle lighting devices for illuminating purposes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2101/00Point-like light sources

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

Abstract

一种LED汽车大灯,该LED汽车大灯设有一个可导电及散热的LED灯基座,该LED灯基座的前端对称固定有一对LED灯珠,LED灯基座的后端与线路板连接,所述LED灯珠的一个管脚与所述LED灯基座导通,LED灯珠的另一个管脚与线路板连接,所述LED灯基座的后端连接有散热器,该散热器上固定有冷却用风扇,该风扇与所述线路板相连接。本发明的LED汽车大灯具有工作温度低,电能消耗小、输出光效高,使用寿命长,光衰小等特点。

An LED automobile headlight is provided with an LED lamp base capable of conducting electricity and dissipating heat, a pair of LED lamp beads are symmetrically fixed at the front end of the LED lamp base, a rear end of the LED lamp base is connected to a circuit board, one pin of the LED lamp bead is connected to the LED lamp base, another pin of the LED lamp bead is connected to the circuit board, a radiator is connected to the rear end of the LED lamp base, a cooling fan is fixed on the radiator, and the fan is connected to the circuit board. The LED automobile headlight of the present invention has the characteristics of low operating temperature, low power consumption, high output light efficiency, long service life, low light decay, etc.

Description

LED汽车大灯LED car headlight

【技术领域】【Technical field】

本发明涉及汽车车灯,特别是涉及一种以LED作光源的LED汽车大灯。The invention relates to a car lamp, in particular to an LED car headlight using LED as a light source.

【背景技术】【Background technique】

目前,随着社会进步和经济发展,汽车已广泛进入家庭。车灯是汽车的重要组成部分,其在车辆行驶及保证行车安全方面具有重要的作用。长期以来,汽车车灯一直沿用卤素灯和疝气灯,它们虽可满足基本的使用要求,但也存在工作温度高、电能消耗大、输出光效低、使用寿命短、光衰大、启动有延时等明显缺陷。如55W/12V的卤素灯在使用中,其灯泡附近的温度大于250℃,而目前汽车大灯的灯杯大多采用塑料成型,并在灯杯内表面电镀反光材料形成反光层,在上述高温作用下,灯杯的反光材料会加速老化并脱落。目前汽车大灯都采用密封方式,热量靠灯体自然冷却。由于灯杯前部大都采用透明度高的塑料制成,而灯珠前方塑料壳体的温度超过100℃,导致汽车大灯前方的透明塑料加速老化并发黄,使用一段时间后,透光率会下降,使得灯光输出减弱,危害行车安全。现有卤素灯的功率为55W,光通量在1000LM(流明)左右,每W光通量输出18LM左右。现有卤素灯的使用寿命约3000小时左右,使用3000小时后,光通量已经降至初始值的75%以下。同时,卤素灯使用钨丝做发光体,通电点亮后其中心温度高达2600度。At present, along with social progress and economic development, automobiles have widely entered families. Car lights are an important part of the car, which play an important role in driving the vehicle and ensuring driving safety. For a long time, halogen lamps and xenon lamps have been used in automobile lights. Although they can meet the basic requirements of use, they also have high operating temperature, large power consumption, low output light efficiency, short service life, large light decay, and delayed start-up. time and other obvious defects. For example, when a 55W/12V halogen lamp is in use, the temperature near the bulb is greater than 250°C. At present, the lamp cups of automobile headlights are mostly made of plastic, and the inner surface of the lamp cup is plated with reflective materials to form a reflective layer. Under normal circumstances, the reflective material of the lamp cup will accelerate aging and fall off. At present, the headlights of automobiles are all sealed, and the heat is naturally cooled by the lamp body. Since the front part of the lamp cup is mostly made of high-transparency plastic, and the temperature of the plastic shell in front of the lamp bead exceeds 100°C, the transparent plastic in front of the car headlight will accelerate aging and turn yellow. After a period of use, the light transmittance will decrease. Decrease, so that the light output is weakened, endangering driving safety. The power of the existing halogen lamp is 55W, the luminous flux is about 1000LM (lumen), and the luminous flux output per W is about 18LM. The service life of the existing halogen lamp is about 3000 hours, and after 3000 hours of use, the luminous flux has dropped to below 75% of the initial value. At the same time, the halogen lamp uses tungsten wire as the illuminant, and its core temperature is as high as 2600 degrees after being energized and lit.

【发明内容】【Content of invention】

本发明旨在解决上述问题,而提供一种工作温度低,电能消耗小、输出光效高,使用寿命长,光衰小的LED汽车大灯。The present invention aims to solve the above problems, and provides an LED automobile headlight with low operating temperature, low power consumption, high output light efficiency, long service life and low light decay.

为实现上述目的,本发明提供一种LED汽车大灯,该LED汽车大灯设有一个可导电及散热的LED灯基座,该LED灯基座的前端对称固定有一对LED灯珠,LED灯基座的后端与线路板连接,所述LED灯珠的一个管脚与所述LED灯基座导通,LED灯珠的另一个管脚与线路板连接,所述LED灯基座的后端连接有散热器,该散热器上固定有冷却用风扇,该风扇与所述线路板相连接。In order to achieve the above object, the present invention provides an LED automobile headlight. The LED automobile headlight is provided with an LED lamp base capable of conducting electricity and dissipating heat. A pair of LED lamp beads are symmetrically fixed on the front end of the LED lamp base. The rear end of the base is connected to the circuit board, one pin of the LED light bead is connected to the LED light base, the other pin of the LED light bead is connected to the circuit board, and the rear end of the LED light base is connected to the circuit board. The end is connected with a radiator, and a cooling fan is fixed on the radiator, and the fan is connected with the circuit board.

LED灯基座为金属杆状体,其前端部中央设有矩形块状凸起,该凸起形成对称的两个LED灯安装面,在两个LED灯安装面上各装有一个LED灯珠,两个LED灯珠具有共同的焦点,LED灯基座的另一端与所述散热器螺纹连接或铆接固定。The base of the LED lamp is a metal rod-shaped body, and the center of the front end is provided with a rectangular block-shaped protrusion, which forms two symmetrical LED lamp installation surfaces, and an LED lamp bead is installed on each of the two LED lamp installation surfaces. , the two LED lamp beads have a common focal point, and the other end of the LED lamp base is screwed or riveted to the radiator.

所述LED灯基座为铜质杆状体。The LED lamp base is a copper rod.

所述的两个LED灯安装面是向LED灯基座的杆状体的中心线方向倾斜的斜面。The two LED lamp installation surfaces are slopes inclined toward the center line of the rod-shaped body of the LED lamp base.

所述LED灯基座的杆状体与其前端的凸起之间由两个锥面过渡。The rod-shaped body of the LED lamp base and the protrusion at the front end are transitioned by two tapered surfaces.

在所述LED灯基座上套设有可拔插的快装接头,该快装接头包括与所述LED灯基座的杆状体相匹配的套管及设于其一端端部的环状凸沿,该快装接头装于标配的汽车车灯的反光灯杯的后部,其环状凸沿卡置于反光灯杯的灯孔内,所述LED灯基座的杆状体插入快装接头的套管内,并延伸至反光灯杯内。A detachable quick-fit joint is sheathed on the LED lamp base, and the quick-fit joint includes a sleeve matching the rod-shaped body of the LED lamp base and a ring-shaped joint at one end. Convex edge, the quick-fit connector is installed at the rear of the reflector cup of the standard car light, and its ring-shaped convex edge is stuck in the light hole of the reflector cup, and the rod-shaped body of the LED lamp base is inserted into the The bushing of the quick connector extends into the reflector cup.

所述线路板上设有与标配的汽车车灯电源插孔相匹配的电源插头。The circuit board is provided with a power plug matching the standard automobile lamp power jack.

线路板上设有恒流、限流电路,该恒流、限流电路包括自恢复保险管FU1、限流电阻R1及二极管D1,其中,所述自恢复保险管FU1和限流电阻R1与所述电源插头串接,所述二极管D1并接在所述自恢复保险管FU1与风扇之间。The circuit board is provided with a constant current and a current limiting circuit, and the constant current and the current limiting circuit include a resettable fuse FU1, a current limiting resistor R1 and a diode D1, wherein the resettable fuse FU1 and the current limiting resistor R1 are compatible with the The power plugs are connected in series, and the diode D1 is connected in parallel between the resettable fuse FU1 and the fan.

所述散热器为翅片式散热器。The radiator is a finned radiator.

本发明的贡献在于,其有效解决了传统汽车大灯所存在的问题。本发明的LED汽车大灯集导电、散热及快速安装等功能于一体,具有工作温度低,电能消耗小、输出光效高,使用寿命长,光衰小等特点。该LED汽车大灯的输入功率仅为16W,光通量输出大于1600LM(流明),灯珠正常使用寿命超过30000小时,光衰减小于5%。本发明的LED汽车大灯具有完备的散热系统,其风扇的寿命大于30000小时,且通过恒流、限流电路设置了限流、过载保护等功能。本发明的LED灯珠的正常工作温度小于85℃,且由于LED发出的是冷光源,因此灯杯前方温度低于环境温度3℃。本发明还具有体积小,结构紧凑,安装快捷方便等特点。The contribution of the present invention is that it effectively solves the problems existing in traditional automobile headlights. The LED automobile headlight of the present invention integrates the functions of conduction, heat dissipation, and quick installation, and has the characteristics of low operating temperature, low power consumption, high output light efficiency, long service life, and low light decay. The input power of the LED car headlight is only 16W, the luminous flux output is greater than 1600LM (lumens), the normal service life of the lamp beads exceeds 30,000 hours, and the light attenuation is less than 5%. The LED automobile headlight of the present invention has a complete heat dissipation system, and the lifespan of the fan is greater than 30,000 hours, and functions such as current limiting and overload protection are set through a constant current and current limiting circuit. The normal operating temperature of the LED lamp bead of the present invention is less than 85°C, and because the LED emits a cold light source, the temperature in front of the lamp cup is lower than the ambient temperature by 3°C. The invention also has the characteristics of small size, compact structure, fast and convenient installation and the like.

【附图说明】【Description of drawings】

图1是本发明的整体结构示意图。Fig. 1 is a schematic diagram of the overall structure of the present invention.

图2是本发明的电路原理图。Fig. 2 is a schematic circuit diagram of the present invention.

图3是本发明的安装使用状态示意图。Fig. 3 is a schematic diagram of the installation and use state of the present invention.

【具体实施方式】【Detailed ways】

下列实施例是对本发明的进一步解释和说明,对本发明不构成任何限制。The following examples are further explanations and illustrations of the present invention, and do not constitute any limitation to the present invention.

参阅图1,本发明的LED汽车大灯包括LED灯基座10、LED灯珠20、散热器40、风扇50、快装接头60及恒流、限流电路80。Referring to FIG. 1 , the LED automobile headlight of the present invention includes an LED lamp base 10 , an LED lamp bead 20 , a radiator 40 , a fan 50 , a quick connector 60 and a constant current and current limiting circuit 80 .

如图1所示,该LED汽车大灯设有一个可导电及散热的LED灯基座10,该LED灯基座10为金属杆状体,本实施例中,该LED灯基座10为黄铜制成的铜质杆状体,其既具备导电性,又具有高效导热性能,其可将LED灯珠20产生的热量迅速传导到散热器40。在LED灯基座10的前端部中央设有矩形块状凸起11,该凸起11形成对称的两个LED灯安装面111,用于装设LED灯珠20。本实施例中,所述的两个LED灯安装面111是向LED灯基座10的杆状体的中心线方向倾斜的斜面,该斜面使得装在该斜面上的LED灯珠20的焦点更加集中。所述凸起11与LED灯基座10的杆状体之间由两个锥面12过渡。所述LED灯基座10的后端与所述散热器40螺纹连接或铆接固定,并与线路板30连接。As shown in Figure 1, the LED car headlight is provided with a conductive and heat-radiating LED lamp base 10, the LED lamp base 10 is a metal rod-shaped body, in this embodiment, the LED lamp base 10 is yellow The copper rod-shaped body made of copper not only has electrical conductivity, but also has high-efficiency thermal conductivity, and can quickly conduct the heat generated by the LED lamp bead 20 to the radiator 40 . At the center of the front end of the LED lamp base 10 is provided a rectangular block-shaped protrusion 11 , which forms two symmetrical LED lamp mounting surfaces 111 for mounting the LED lamp bead 20 . In this embodiment, the two LED lamp mounting surfaces 111 are slopes inclined toward the centerline of the rod-shaped body of the LED lamp base 10, and the slopes make the focus of the LED lamp beads 20 mounted on the slopes more precise. concentrated. Two tapered surfaces 12 make a transition between the protrusion 11 and the rod-shaped body of the LED lamp base 10 . The rear end of the LED lamp base 10 is screwed or riveted to the radiator 40 , and connected to the circuit board 30 .

图1中,在LED灯基座10端部的两个LED灯安装面111上对称地装设有一对LED灯珠20,本实施例中,两个LED灯珠20为圆头的大功率LED灯珠,其输入电压为12~14.5V,功率为16W,光通量为1600LM,使用寿命达30000小时以上,LED灯珠工作时,其附近的温度小于90℃。所述两个LED灯珠20具有共同的焦点,两个LED灯珠的光线聚焦于前方的同一焦点上。所述的两个LED灯珠20焊接固定于LED灯基座的两个安装面111上,LED灯珠20的一个管脚与所述LED灯基座10导通,LED灯珠20的另一个管脚通过导线与线路板30连接。In Fig. 1, a pair of LED lamp beads 20 are symmetrically installed on the two LED lamp mounting surfaces 111 at the end of the LED lamp base 10. In this embodiment, the two LED lamp beads 20 are high-power LEDs with round heads. The lamp bead has an input voltage of 12-14.5V, a power of 16W, a luminous flux of 1600LM, and a service life of more than 30,000 hours. When the LED lamp bead is working, the temperature near it is less than 90°C. The two LED lamp beads 20 have a common focal point, and the light of the two LED lamp beads is focused on the same focal point in front. The two LED lamp beads 20 are welded and fixed on the two mounting surfaces 111 of the LED lamp base, one pin of the LED lamp bead 20 is connected to the LED lamp base 10, and the other pin of the LED lamp bead 20 is The pins are connected to the circuit board 30 through wires.

如图1,所述LED灯基座10的后端连接有散热器40,本实施例中,该散热器40为铝合金制成的翅片式散热器,其平面一侧与LED灯基座10螺纹连接或铆接固定,由于LED灯基座10为铜质基座,其可将LED灯珠20产生的热量迅速传导到散热器40。在该散热器40的翅片一侧固定有冷却用风扇50,该风扇为双滚珠直流无刷风扇,其使用寿命大于30000小时。通过该风扇50可对散热器40进行冷却降温。该风扇50与所述线路板30相连接,为其提供电源。As shown in Figure 1, the rear end of the LED lamp base 10 is connected with a radiator 40. In this embodiment, the radiator 40 is a finned radiator made of aluminum alloy, and one side of its plane is connected to the LED lamp base. 10 are screwed or riveted, and since the LED lamp base 10 is made of copper, it can quickly transfer the heat generated by the LED lamp bead 20 to the heat sink 40 . A fan 50 for cooling is fixed on one side of the fin of the radiator 40, and the fan is a double-ball DC brushless fan with a service life greater than 30,000 hours. The radiator 40 can be cooled by the fan 50 . The fan 50 is connected with the circuit board 30 to provide power for it.

为保证使用的安全性,本发明设置了恒流、限流电路80,以提供限流及过载保护,该恒流、限流电路80设于线路板30上。如图2所示,该恒流、限流电路80包括自恢复保险管FU1、限流电阻R1及二极管D1,其中,所述自恢复保险管FU1和限流电阻R1与所述电源插头31串接,所述二极管D1并接在所述自恢复保险管FU1与冷却用风扇50之间。当由于过载而导致电流超过额定工作电流时,所述自恢复保险管FU1将自动断开电源,以防损坏LED灯珠20。当电流恢复正常时,自恢复保险管FU1将自动导通。In order to ensure the safety of use, the present invention provides a constant current and current limiting circuit 80 to provide current limiting and overload protection. The constant current and current limiting circuit 80 is arranged on the circuit board 30 . As shown in Figure 2, the constant current and current limiting circuit 80 includes a resettable fuse FU1, a current limiting resistor R1 and a diode D1, wherein the resettable fuse FU1 and the current limiting resistor R1 are connected in series with the power plug 31 The diode D1 is connected in parallel between the resettable fuse FU1 and the cooling fan 50 . When the current exceeds the rated operating current due to overload, the resettable fuse FU1 will automatically cut off the power supply to prevent damage to the LED lamp bead 20 . When the current returns to normal, the self-recovery fuse FU1 will be automatically turned on.

为适配普通汽车的大灯并便于快捷安装,本发明设置了可拔插的快装接头60。如图3所示,该快装接头60包括套管61及环状凸沿62,其中,套管61与所述LED灯基座10的杆状体相匹配,环状凸沿62则与标配汽车车灯的反光灯杯的灯孔71相匹配。该快装接头60装于标配的汽车车灯的反光灯杯70的后部中央,其环状凸沿62卡置于反光灯杯70的灯孔71内,并由标配的车灯卡簧73固定。所述LED灯基座10的杆状体插入快装接头的套管61内,LED灯基座10与套管61之间通过两个O型密封圈63密封。LED灯基座10的杆状体的前端延伸至反光灯杯70内。通过该快装接头60可将本发明的LED汽车大灯方便快捷地安装到汽车上。In order to adapt to the headlights of ordinary cars and to facilitate fast installation, the present invention provides a pluggable quick connector 60 . As shown in FIG. 3 , the quick connector 60 includes a sleeve 61 and an annular convex edge 62, wherein the sleeve 61 matches the rod-shaped body of the LED lamp base 10, and the annular convex edge 62 matches the standard Match the light hole 71 of the reflector cup of the automobile headlight. The quick connector 60 is installed in the center of the rear part of the reflector cup 70 of the standard automobile lamp, and its annular convex edge 62 is stuck in the lamp hole 71 of the reflector cup 70. Spring 73 is fixed. The rod-shaped body of the LED lamp base 10 is inserted into the bushing 61 of the quick-fit joint, and the space between the LED lamp base 10 and the bushing 61 is sealed by two O-rings 63 . The front end of the rod-shaped body of the LED lamp base 10 extends into the reflector cup 70 . The LED car headlight of the present invention can be installed on the car conveniently and quickly through the quick-fit joint 60 .

如图3,在所述线路板30上设有电源插头31,该电源插头31与标配的汽车车灯电源插座72相匹配,可方便地将本发明的LED汽车大灯连接到汽车电源。As shown in Fig. 3, a power plug 31 is arranged on the circuit board 30, and the power plug 31 is matched with a standard car lamp power socket 72, which can easily connect the LED car headlight of the present invention to the car power supply.

籍此,本发明的LED汽车大灯可在不改变汽车车灯原结构的情况下,由本发明的LED汽车大灯替换原有的卤素灯和疝气灯,并有效提高了汽车大灯的综合性能。Thereby, the LED automobile headlight of the present invention can replace the original halogen lamp and xenon lamp by the LED automobile headlight of the present invention without changing the original structure of the automobile lamp, and effectively improves the comprehensive performance of the automobile headlight .

尽管通过以上实施例对本发明进行了揭示,但本发明的保护范围并不局限于此,在不偏离本发明构思的条件下,对以上各构件所做的变形、替换等均将落入本发明的权利要求范围内。Although the present invention has been disclosed through the above embodiments, the protection scope of the present invention is not limited thereto. Under the condition of not departing from the concept of the present invention, the deformation, replacement, etc. of the above components will fall into the scope of the present invention. within the scope of the claims.

Claims (9)

1. a LED automobile headlamp, it is characterized in that, this LED automobile headlamp is provided with a LED pedestal (10) that can conduct electricity and dispel the heat, the front end of this LED pedestal (10) is symmetrically fixed with a pair LED lamp bead (20), the rear end of LED pedestal (10) is connected with wiring board (30), a pin of described LED lamp bead (20) and described LED pedestal (10) conducting, another pin of LED lamp bead (20) is connected with wiring board (30), the rear end of described LED pedestal (10) is connected with radiator (40), this radiator (40) is fixed with cooling fan (50), this use fan (50) is connected with described wiring board (30).
2. LED automobile headlamp as claimed in claim 1, it is characterized in that, described LED pedestal (10) is metallic rod shaped body, its leading section central authorities are provided with rectangular block shape projection (11), this projection (11) forms two symmetrical LED installed surfaces (111), two LED installed surfaces (111) are respectively equipped with a LED lamp bead (20), two LED lamp bead (20) have common focus, and the other end of LED pedestal (10) is threaded with described radiator (40) or rivets fixing.
3. LED automobile headlamp as claimed in claim 2, it is characterized in that, described LED pedestal (10) is copper rhabodoid.
4. LED automobile headlamp as claimed in claim 3, is characterized in that, two described LED installed surfaces (111) are the inclined-planes tilted to the centerline direction of the rhabodoid of LED pedestal (10).
5. LED automobile headlamp as claimed in claim 3, is characterized in that, by the transition of two conical surfaces (12) between the rhabodoid of described LED pedestal (10) and the projection (11) of its front end.
6. LED automobile headlamp as claimed in claim 2 or claim 3, it is characterized in that, described LED pedestal (10) is arranged with can the ready-packaged joint (60) of plug, this ready-packaged joint (60) comprises the sleeve pipe (61) matched with the rhabodoid of described LED pedestal (10) and the cyclic convex edge (62) being located at its end, one end, this ready-packaged joint (60) is loaded on the rear portion of the Reflecting lamp cup (70) of the automobile lamp of standard configuration, its cyclic convex edge (62) is placed in the lamp hole (71) of Reflecting lamp cup (70), the rhabodoid of described LED pedestal (10) inserts in the sleeve pipe (61) of ready-packaged joint, and extend in Reflecting lamp cup (70).
7. LED automobile headlamp as claimed in claim 1, it is characterized in that, described wiring board (30) is provided with the attaching plug (31) matched with the automobile lamp supply hub (72) of standard configuration.
8. LED automobile headlamp as claimed in claim 7, it is characterized in that, described wiring board (30) is provided with constant current, current-limiting circuit (80), this constant current, current-limiting circuit (80) comprise self-recoverage protective tube FU1, current-limiting resistance R1 and diode D1, wherein, described self-recoverage protective tube FU1 and current-limiting resistance R1 is connected in series with described attaching plug (31), and described diode D1 is attempted by between described self-recoverage protective tube FU1 and fan (50).
9. LED automobile headlamp as claimed in claim 1, it is characterized in that, described radiator (40) is gilled radiator.
CN201510018608.1A 2015-01-14 2015-01-14 LED car headlight Pending CN104566115A (en)

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