CN104864343A - Twin light integrated LED automobile headlamp - Google Patents

Twin light integrated LED automobile headlamp Download PDF

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Publication number
CN104864343A
CN104864343A CN201510297439.XA CN201510297439A CN104864343A CN 104864343 A CN104864343 A CN 104864343A CN 201510297439 A CN201510297439 A CN 201510297439A CN 104864343 A CN104864343 A CN 104864343A
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China
Prior art keywords
light
reflector
led
dipped
heat radiation
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CN201510297439.XA
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Chinese (zh)
Inventor
朱国平
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朱国平
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Priority to CN201510297439.XA priority Critical patent/CN104864343A/en
Publication of CN104864343A publication Critical patent/CN104864343A/en
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Classifications

    • 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
    • F21S41/20Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25Projection lenses
    • F21S41/27Thick lenses
    • 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
    • F21S41/00Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32Optical layout thereof
    • 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
    • F21S41/60Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • 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
    • 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
    • F21S45/49Attachment of the cooling means
    • 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

Abstract

The invention discloses a twin light integrated LED automobile headlamp and belongs to the technical field of automobile lamps. The twin light integrated LED automobile headlamp comprises a lens support, a lens, a reflecting cup and a light source assembly. The lens is installed on the reflecting cup through the lens support. The light source assembly is arranged in the reflecting cup. A low-beam reflecting hood and a high-beam reflecting hood are arranged in the reflecting cup and are opposite to each other. A cut-off line diaphragm is arranged at the front end of the low-beam reflecting hood. The light source assembly comprises a high-beam LED light source module and a low-beam LED light source module. The high-beam LED light source module faces the high-beam reflecting hood. The low-beam LED light source module faces the low-beam reflecting hood. According to the twin light integrated LED automobile headlamp, a low beam and a high beam are provided with the independent optical reflecting hoods respectively through the ingenious structure design; the cut-off line of the low beam can effectively protect the eyes of a driver of a car on the opposite side; the high beam is better condensed, the central luminance is high, and the irradiation distance is long; the optical axes of the high beam and the low beam can conduct illumination at the same time and coincide, and then a perfect light path light spot is formed.

Description

The LED automobile headlamp of a kind of pair of light one
Technical field
The present invention relates to a kind of headlight for vehicles, more particularly, relate to the LED automobile headlamp of a kind of pair of light one.
Background technology
Along with the progress of auto technology, the volume of production and marketing of automobile is in continuous expansion, its relevant accessory industry also increases thereupon, auto lamp is exactly one of key fitment, current auto lamp accessory is mainly based on xenon auto lamp and automotive halogen lamp, but xenon auto lamp and automotive halogen lamp power consumption is large, the life-span is short, brightness is low, start-up study.But reducing energy consumption is that all industries pursued, and the power consumption of onboard electrical directly has influence on oil consumption, especially hybrid vehicle and pure electric vehicle, energy-conservation particularly important.Car light is that in all electrical equipment of automobile, energy consumption is maximum, reduces the power consumption of car light, be save money, accomplished energy-saving and emission-reduction to environment to car owner under the prerequisite not affecting illumination.The innovation of car light technology, will make a contribution to the field such as environment, resource.LED owing to having the features such as energy-conservation, volume is little, the life-span is long, so the application on lighting source is more and more extensive.Along with the development of great power LED technology, LED becomes a reality as the light source of automobile headlamp, and LED can adopt multiple light courcess combining form, and this will change shape and the arrangement of car headlamp completely; Traditional xenon auto lamp and automotive halogen lamp cannot the moulding of real concept car, use LED light source can be able to perfect realization.Such as, LED light source can use many light source arrangements, and many speculums or lens carry out optical design, make light fixture compacter.High beam and dipped headlights can also be designed in lampshade simultaneously, as long as the heat dissipation design of power supply and LED is suitable, life-span of LED automobile headlight can considerably beyond motor live time, so LED automobile lamp is promptly becoming the popularization product of auto parts and components manufacturer at present.
Automobile headlamp require there is dipped beam and road function, dipped beam export usual angle downwards and slightly depart from head-on sail come vehicle so that be on the opposition side of road oncoming vehicle minimizing dazzling; Distance light exports direction requirement that is brighter and that export without dipped beam.For many years, automobile be usually equipped with export with distance light for dipped beam be separated headlight, but for a variety of reasons, people more wish to allow single headlight have distance light and low-beam function simultaneously.At present, designers more both domestic and external are also proposed the auto lamp structure much simultaneously with distance light and low-beam function, but these designs are mostly more single, major part is the position switching baffle plate by changing distance-light, and then realize regulating between distance-light, this way needs to sacrifice part luminous energy usually, and energy consumption is high, and the utilization rate of light efficiency is low, make the rather dark easy astigmatism of car light.
Chinese Patent Application No. 201310181341.9, Shen Qing Publication day is on December 4th, 2013, invention and created name for: both exporting with dipped beam and distance light and the head lamp being feature without movable part, this application case relate to a kind of export with dipped beam and distance light both and the head lamp being feature without movable part, at dipped beam LED array and the reflector contrary transverse guidance light of light being guided into reflector second focus of elliptical reflector first near focal point; The cutting edge of the second near focal point forms the light/dark edge in dipped beam output; Cutting edge is that top edge forms the vertical to shadow shield of light/dark edge; Cutting edge is the level shadow component that leading edge forms light/dark edge; Cutting edge is the angle of radiator; Cutting edge is positioned at the near focal point of the lens of the dipped beam output being transmitted with light/dark edge; At the static refrative mirror of reflector second near focal point from high-beam LED array to lens directs light; The distance light formed without light/dark edge from the addition light transmitted through lens of refrative mirror reflection exports.This application case distance-light is easy to adjust, but distance light adopts static refrative mirror to reflect output, and light-gathering is poor, and center brightness is weak, and irradiation distance is far away not.
Summary of the invention
1. invent the technical problem that will solve
The object of the invention is to overcome existing headlight for vehicles energy consumption high, light efficiency utilization rate is low, and the deficiency that distance-light optical axis can not effectively be joined together, the LED automobile headlamp of a kind of pair of light one is provided, adopt technical scheme of the present invention, distance light and dipped beam is made to have independently optical reflecting cover respectively by structural design cleverly, the dead line of dipped beam can the eyes of available protecting the other side driver, thus reduction accident rate, distance light then more optically focused, center brightness is strong, irradiation distance is far away, can not because of the astigmatism of light in running at high speed, dim and cause rear-end collision, together with distance light and the optical axis of dipped beam can irradiate simultaneously join, form a perfect light path hot spot, be integrated on the heat radiation reflector of LED automobile headlamp by day portable lighter simultaneously, utilize the cooling system of LED automobile headlamp to complete the heat radiation of day portable lighter, compact conformation, heat radiation fast, has that energy consumption is low, light efficiency utilization rate is high, the feature of long service life.
2. technical scheme
For achieving the above object, technical scheme provided by the invention is:
The LED automobile headlamp of a kind of pair of light one of the present invention, comprise lens carrier, lens, reflector and light source assembly, described lens scioptics support installing is on reflector, described light source assembly is located in reflector, be provided with dipped beam reflector and distance light reflector in described reflector, described dipped beam reflector and distance light reflector are oppositely arranged; Described light source assembly comprises distance light LED light source module and dipped beam LED light source module, and described distance light LED light source module is towards distance light reflector, and described dipped beam LED light source module is towards dipped beam reflector.
Further, described distance light LED light source module is located at the centre of reflector, and described dipped beam LED light source module is provided with two groups, and the both sides of the distance light LED light source module that is placed in.
Further, described dipped beam reflector is made up of two symmetrical reflecting curved surfaces, and the corresponding one group of dipped beam LED light source module of each reflecting curved surface; Described distance light reflector is ellipsoid.
Further, described distance light LED light source module has the angle [alpha] tilted inside dipped beam reflector, and 8 ° ≦ α≤12 °.
Further, the front end of described dipped beam reflector is also provided with dead line diaphragm, and described dead line diaphragm is horizontally disposed with, and dead line diaphragm is a cutting edge structure near the side of lens.
Further, the LED chip of described distance light LED light source module and dipped beam LED light source module is all arranged side by side along the direction of light injection.
Further, described distance light LED light source module is the list group LED chip module of 2 × 4 encapsulation, and described dipped beam LED light source module is two groups of LED chip modules of 1 × 4 encapsulation.
Further, described reflector comprises the first heat radiation reflector and the second heat radiation reflector, and described dipped beam reflector is located in the first heat radiation reflector, and described distance light reflector is located in the second heat radiation reflector.
Further, the first described heat radiation reflector is positioned at the top of the second heat radiation reflector.
Further, in the left and right sides of described reflector, at least side is provided with radiator fan, and radiator fan forms air-flow and taken away by the heat on the first heat radiation reflector and the second heat radiation reflector.
Further, also comprise driver and heat-sensitive sensor, described heat-sensitive sensor is installed on the LED chip module group substrates of distance light LED light source module and dipped beam LED light source module, and be connected with actuator electrical, described driver is electrically connected with radiator fan, for detecting the rotating speed of the temperature information variable frequency adjustment radiator fan obtained according to heat-sensitive sensor.
Further, also comprise a day portable lighter assembly, described day portable lighter assembly is installed on the top of the first heat radiation reflector or the below of the second heat radiation reflector.
Further, described day portable lighter assembly comprises light-strip and inserts support and light-strip LED light source substrate, and described light-strip LED light source substrate inserts support installing on the first heat radiation reflector or the second heat radiation reflector by light-strip.
Further, described distance light LED light source module is by being fixedly installed on the first heat radiation reflector by the pillar extended out in the middle part of dipped beam reflector, and described dipped beam LED light source module is fixedly installed on the second heat radiation reflector respectively.
Further, the first described heat radiation reflector and the second heat radiation reflector adopt full aluminium die cast, and the outer surface of the first heat radiation reflector and the second heat radiation reflector is equipped with radiating fin.
Further, described lens are aspheric surface biconvex lens, and the material of lens is high index of refraction optical grade PC.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with existing known technology, there is following remarkable result:
(1) LED automobile headlamp of a kind of pair of light one of the present invention, be provided with dipped beam reflector and distance light reflector in its reflector, dipped beam reflector and distance light reflector are oppositely arranged; Light source assembly comprises distance light LED light source module and dipped beam LED light source module, and distance light LED light source module is towards distance light reflector, and dipped beam LED light source module is towards dipped beam reflector; Distance light and dipped beam is made to have independently optical reflecting cover respectively by structural design cleverly, the dead line of dipped beam can the eyes of available protecting the other side driver, human pilot can obtain wider visual angle again, thus reduction accident rate, distance light then more optically focused, center brightness is strong, and irradiation distance is far away, can not because of the astigmatism of light, dim and cause rear-end collision in running at high speed; Change the shortcoming that energy consumption is high and light efficiency utilization rate is low of orthodox car illumination, only need 1/4th power of orthodox car illumination power consumption, the world, domestic automobile, electric motor car, train, ship's service lighting class requirement can be met;
(2) LED automobile headlamp of a kind of pair of light one of the present invention, its distance light LED light source module is located at the centre of reflector, dipped beam LED light source module is provided with two groups, and the both sides of the distance light LED light source module that is placed in, dipped beam reflector is made up of two symmetrical reflecting curved surfaces, and the corresponding one group of dipped beam LED light source module of each reflecting curved surface, distance light reflector is ellipsoid; Light source module fixed form is unique, together with distance light and the optical axis of dipped beam can irradiate simultaneously join, forms a perfect light path hot spot;
(3) LED automobile headlamp of a kind of pair of light one of the present invention, the front end of its dipped beam reflector is also provided with dead line diaphragm, setting up dead line diaphragm makes dipped beam dead line more clear, and dead line diaphragm is a cutting edge structure near the side of lens, together with dipped beam is joined with distance light perfection, centre does not have dark space, and therefore light path hot spot is more clear bright;
(4) LED automobile headlamp of a kind of pair of light one of the present invention, its distance light LED light source module is the list group LED chip module of 2 × 4 encapsulation, dipped beam LED light source module is two groups of LED chip modules of 1 × 4 encapsulation, the LED chip of distance light LED light source module and dipped beam LED light source module is all arranged side by side along the direction of light injection, with traditional transversely arranged compared with, in the usefulness of optical design, improve the light reflectance of 40%; And the power of distance light is only 12W, the power of dipped beam is 2 × 6W, through the optical design of exact science, fullys meet the luminance standard in regulation in testing;
(5) LED automobile headlamp of a kind of pair of light one of the present invention, its reflector comprises the first heat radiation reflector and the second heat radiation reflector, and dipped beam reflector is located in the first heat radiation reflector, and distance light reflector is located in the second heat radiation reflector; And the first heat radiation reflector is positioned at the top of the second heat radiation reflector, reflector convenient processing and manufacture, is convenient to the assembling of headlight for vehicles more;
(6) LED automobile headlamp of a kind of pair of light one of the present invention, in the left and right sides of its reflector, at least side is provided with radiator fan, radiator fan forms air-flow and is taken away by the heat on the first heat radiation reflector and the second heat radiation reflector, radiator fan is located at the side of headlight for vehicles, advantageously in air flowing, and most vehicle structures can be adapted to; And, headlight for vehicles also comprises driver and heat-sensitive sensor, heat-sensitive sensor is installed on the LED chip module group substrates of distance light LED light source module and dipped beam LED light source module, and be connected with actuator electrical, driver is electrically connected with radiator fan, for detecting the rotating speed of the temperature information variable frequency adjustment radiator fan obtained according to heat-sensitive sensor, more energy-conservation; Meanwhile, if radiator fan arranges two in the left and right sides of reflector, then when only Kaiyuan City's light or dipped headlights, can by the work of one of them radiator fan of driver control; When distance light and dipped headlights are opened simultaneously, two radiator fans can be controlled and work simultaneously, Based Intelligent Control, energy-conserving and environment-protective; In addition, when LED chip temperature has arrived the limiting value of setting, driver, by reduction suitable for the electric current that exports, has effectively ensured that LED chip can not Yin Gaowen and the serious light decay that produces or damage, has extended the service life of LED chip;
(7) LED automobile headlamp of a kind of pair of light one of the present invention, it also comprises a day portable lighter assembly, day portable lighter assembly is installed on the top of the first heat radiation reflector or the below of the second heat radiation reflector, day portable lighter assembly comprises light-strip and inserts support and light-strip LED light source substrate, light-strip LED light source substrate inserts support installing on the first heat radiation reflector or the second heat radiation reflector by light-strip, day portable lighter is integrated on the heat radiation reflector of LED automobile headlamp, the cooling system of LED automobile headlamp is utilized to complete the heat radiation of day portable lighter, compact conformation, heat radiation fast, there is energy consumption low, light efficiency utilization rate is high, the feature of long service life,
(8) LED automobile headlamp of a kind of pair of light one of the present invention, its first heat radiation reflector and the second heat radiation reflector adopt full aluminium die cast, and the outer surface of the first heat radiation reflector and the second heat radiation reflector is equipped with radiating fin, to greatest extent the temperature Quick diffusing that LED chip module produces is gone out, guarantee that LED chip module works in normal temperature range;
(9) LED automobile headlamp of a kind of pair of light one of the present invention, its lens are aspheric surface biconvex lens, and the material of lens is high index of refraction optical grade PC, and compared with glass lens, PC eyeglass is lightweight, shaping rear indeformable, and light shape is stablized.
Accompanying drawing explanation
Fig. 1 is the side structure schematic diagram (radiator fan is not shown) of the LED automobile headlamp of a kind of pair of light one of the present invention;
Fig. 2 is the bottom surface structure schematic diagram of the LED automobile headlamp of a kind of pair of light one of the present invention;
Fig. 3 is the internal structure schematic diagram of the first heat radiation reflector in the present invention;
Fig. 4 is the mounting structure schematic diagram of the dead line diaphragm in the present invention;
Fig. 5 is the distribution schematic diagram of light source in the first heat radiation reflector in the present invention;
Fig. 6 is the distribution schematic diagram of light source in the second heat radiation reflector in the present invention;
Fig. 7 is the distance light light schematic diagram in the present invention;
Fig. 8 is the dipped beam light schematic diagram in the present invention.
Label declaration in schematic diagram:
1, the first heat radiation reflector; 11, dipped beam reflector; 12, pillar; 13, distance light LED light source module; 14, dead line diaphragm mounting groove; 2, the second heat radiation reflector; 21, distance light reflector; 22, dipped beam LED light source module; 23, wire hole; 3, lens carrier; 31, Decorative Cover installing hole; 4, lens; 5, radiator fan; 51, fan fixing hole; 6, radiating fin; 7, light-strip inserts support; 8, light-strip LED light source substrate; 9, dead line diaphragm.
Detailed description of the invention
For understanding content of the present invention further, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment
Shown in composition graphs 1, Fig. 5 and Fig. 6, the LED automobile headlamp of a kind of pair of light one of the present embodiment, comprise lens carrier 3, lens 4, reflector and light source assembly, lens 4 scioptics support 3 is installed on reflector, light source assembly is located in reflector, unlike the prior art, be provided with dipped beam reflector 11 and distance light reflector 21 in reflector, dipped beam reflector 11 and distance light reflector 21 are oppositely arranged; Light source assembly comprises distance light LED light source module 13 and dipped beam LED light source module 22, and distance light LED light source module 13 is towards distance light reflector 21, and dipped beam LED light source module 22 is towards dipped beam reflector 11.Wherein, distance light LED light source module 13 is located at the centre of reflector, and dipped beam LED light source module 22 is provided with two groups, the both sides of distance light LED light source module 13 and symmetry is placed in, dipped beam reflector 11 is made up of two symmetrical reflecting curved surfaces, and the corresponding one group of dipped beam LED light source module 22 of each reflecting curved surface, distance light reflector 21 is ellipsoid, and, distance light LED light source module 13 has the angle [alpha] (shown in Figure 7) tilted inside dipped beam reflector 11, and 8 ° ≦ α≤12 °, make the position of distance light LED light source module 13 in distance light reflector 21 more reasonable, improve light efficiency utilization rate, light source module fixed form is unique, together with distance light and the optical axis of dipped beam can irradiate simultaneously join, form a perfect light path hot spot, compared with the design that other is original, solve distance light, dipped beam shines out the defect can not joined together, if together with dipped beam can not well be joined with the light path of distance light, so be irradiated on road surface, dark space can be produced because joining not exclusively, affect illuminating effect.The LED automobile headlamp of a kind of pair of light one of the present embodiment, distance light and dipped beam is made to have independently optical reflecting cover respectively by structural design cleverly, the dead line of dipped beam can the eyes of available protecting the other side driver, human pilot can obtain wider visual angle again, thus reduction accident rate, distance light then more optically focused, center brightness is strong, irradiation distance is far away, can not because of the astigmatism of light, dim and cause rear-end collision in running at high speed; Change the shortcoming that energy consumption is high and light efficiency utilization rate is low of orthodox car illumination, only need 1/4th power of orthodox car illumination power consumption, the world, domestic automobile, electric motor car, train, ship's service lighting class requirement can be met.
Shown in hookup 5 and Fig. 6, distance light LED light source module 13 in the present embodiment and the LED chip of dipped beam LED light source module 22 are all arranged side by side along the direction of light injection, and distance light LED light source module 13 is the list group LED chip module of 2 × 4 encapsulation, dipped beam LED light source module 22 is two groups of LED chip modules of 1 × 4 encapsulation, according to the demand of brightness, LED chip can realize unit square millimeter 300 ~ 700 lumen luminous energy, and regulates by driver; Further, the illumination requirement that light source module should be different, the quantity of LED chip can increase or reduce.With traditional transversely arranged compared with, in the usefulness of optical design, improve the light reflectance of 40%; And the power of distance light is only 12W, the power of dipped beam is 2 × 6W, through the optical design of exact science, fullys meet the luminance standard in regulation in testing; Compared with traditional halogen bulb energy-conservation 75%, compared with HID xenon lamp energy-conservation 40%.The service life of the LED automobile headlamp in the present embodiment is up to 50000 hours (brightness after light decay is about 85%), and traditional halogen bulb life-span was lower than 800 hours (brightness after light decay was only 10%), the HID xenon lamp bubble life-span was lower than 3000 hours (brightness after light decay was only 40%).
Shown in Fig. 5 and Fig. 6, for the ease of processing and manufacturing, reflector in the present embodiment comprises the first heat radiation reflector 1 and the second heat radiation reflector 2, dipped beam reflector 11 is located in the first heat radiation reflector 1, distance light reflector 21 is located in the second heat radiation reflector 2, and the first heat radiation reflector 1 is positioned at the top of the second heat radiation reflector 2, and namely distance light reflector 21 is positioned at the below of dipped beam reflector 11.Reflector convenient processing and manufacture, is convenient to the assembling of headlight for vehicles more.In addition, as shown in Figure 3, distance light LED light source module 13 is by being fixedly installed on the first heat radiation reflector 1 by the pillar 12 extended out in the middle part of dipped beam reflector 11, dipped beam LED light source module 22 is fixedly installed on the second heat radiation reflector 2 respectively, by distance light LED light source module 13 and dipped beam LED light source module 22 respectively on the first heat radiation reflector 1 and the second heat radiation reflector 2 after installation, again the first heat radiation reflector 1 and the second heat radiation reflector 2 are fitted together, quick and easy for installation.As shown in Figure 4, the front end of the dipped beam reflector 11 in the present embodiment is also provided with dead line diaphragm 9, particularly, the front first heat radiation reflector 1 being positioned at dipped beam reflector 11 is also provided with the dead line diaphragm mounting groove 14 of horizontal direction, dead line diaphragm 9 is installed in dead line diaphragm mounting groove 14, and fixed by two screws, dead line diaphragm 9 in the present embodiment is horizontally disposed with, and its side near lens 4 is a cutting edge structure, together with so also can ensureing that dipped beam can perfectly meet at distance light, centre does not have dark space, and dipped beam dead line is more clear.Second heat radiation reflector 2 is also provided with the wire hole 23 for drawing distance light LED light source module 13 and dipped beam LED light source module 22 wire.
As shown in Figure 2, in the left and right sides of reflector, at least side is provided with radiator fan 5, and radiator fan 5 forms air-flow and taken away by the heat on the first heat radiation reflector 1 and the second heat radiation reflector 2; Radiator fan 5 is located at the side of headlight for vehicles, advantageously in air flowing, and most vehicle structures can be adapted to; Radiator fan 5 can arrange one or two, and the side of reflector is mounted on by fan fixing hole 51, when radiator fan 5 arranges two in the left and right sides of reflector, then when only Kaiyuan City's light or dipped headlights, can by the work of one of them radiator fan of driver control; When distance light and dipped headlights are opened simultaneously, two radiator fans can be controlled and work simultaneously, Based Intelligent Control, energy-conserving and environment-protective.In addition, driver and heat-sensitive sensor is also comprised in the present embodiment, heat-sensitive sensor is installed on the LED chip module group substrates of distance light LED light source module 13 and dipped beam LED light source module 22, and be connected with actuator electrical, driver is electrically connected with radiator fan 5, for detecting the rotating speed of the temperature information variable frequency adjustment radiator fan 5 obtained according to heat-sensitive sensor, more energy-conservation; And, have also been devised the limiting value of LED chip temperature in the present embodiment, when LED chip temperature has arrived the limiting value of setting, driver is by reduction suitable for the electric current of output, effective guarantee LED chip can not Yin Gaowen and the serious light decay that produces or damage, extends the service life of LED chip.In conjunction with the active heat removal of radiator fan 5, the first heat radiation reflector 1 in the present embodiment and the second heat radiation reflector 2 adopt full aluminium die cast, thermal conductivity is good, and the outer surface of the first heat radiation reflector 1 and the second heat radiation reflector 2 is equipped with radiating fin 6, to greatest extent the temperature Quick diffusing that LED chip produces is gone out, guarantee that LED chip works in normal temperature range.
Shown in hookup 2, the LED automobile headlamp of a kind of pair of light one of the present embodiment, also comprise a day portable lighter assembly, day portable lighter assembly is installed on the top of the first heat radiation reflector 1 or the below of the second heat radiation reflector 2, in the present embodiment, day, portable lighter assembly was preferably installed on the below of the second heat radiation reflector 2, i.e. the below of distance light reflector 21, meets most of Vehicle lamp structure.This day portable lighter assembly comprises light-strip and inserts support 7 and light-strip LED light source substrate 8, and light-strip LED light source substrate 8 inserts support 7 by light-strip and is installed on the first heat radiation reflector 1 or the second heat radiation reflector 2.Be integrated on the heat radiation reflector of LED automobile headlamp by day portable lighter, utilize the cooling system of LED automobile headlamp to complete the heat radiation of day portable lighter, compact conformation, heat radiation fast, has that energy consumption is low, light efficiency utilization rate is high, the feature of long service life.
The LED automobile headlamp of a kind of pair of light one of the present embodiment, distance light and dipped beam have independently optical reflecting cover and corresponding light source respectively.As shown in Figure 7, the light of distance light LED light source module 13, after the reflection of the distance light reflector 21 of ellipse, penetrates again after the refraction of lens 4, distance light is optically focused more, center brightness is strong, and irradiation distance is far away, can not because of the astigmatism of light, dim and cause rear-end collision in running at high speed; As shown in Figure 8; the light of two dipped beam LED light source modules 22 is after the dipped beam reflector 11 of correspondence reflects; again penetrate after the refraction of lens 4; irradiating angle is wider; while the eyes of available protecting the other side driver; human pilot has been got back wider visual angle, thus reduces accident rate.As shown in Figure 7 and Figure 8, according to optical principle, in the present embodiment, the two sides of lens 4 all has radian (namely lens 4 are aspheric surface biconvex eyeglass), the radian being positioned at inner side is comparatively flat, and the material of lens 4 in the present embodiment is high index of refraction optical grade PC, compared with glass lens, PC eyeglass is lightweight, shaping rear indeformable, light shape is stablized.
The LED automobile headlamp of a kind of pair of light one of the present embodiment, the headlight as automobile uses, and is installed on automobile by commercially available universal mount, realizes the adjustment up and down of headlight for vehicles; Particularly, the headlight for vehicles of the present embodiment is snapped in the macropore of universal mount from rear portion, by two screws by headlight for vehicles and universal mount fastening, then utilize universal mount to be installed on the vehicle of various model, there is applicability widely.In addition, lens carrier 3 is also provided with Decorative Cover installing hole 31, Decorative Cover can be stuck on lens carrier 3, easy installation and removal is quick.
The LED automobile headlamp of a kind of pair of light one of the present invention, distance light and dipped beam is made to have independently optical reflecting cover respectively by structural design cleverly, the dead line of dipped beam can the eyes of available protecting the other side driver, human pilot can obtain wider visual angle again, thus reduction accident rate, distance light then more optically focused, center brightness is strong, irradiation distance is far away, can not because of the astigmatism of light, dim and cause rear-end collision in running at high speed; Together with distance light and the optical axis of dipped beam can irradiate simultaneously join, form a perfect light path hot spot; Be integrated on the heat radiation reflector of LED automobile headlamp by day portable lighter simultaneously, utilize the cooling system of LED automobile headlamp to complete the heat radiation of day portable lighter, compact conformation, heat radiation fast, has that energy consumption is low, light efficiency utilization rate is high, the feature of long service life.
Below be schematically described the present invention and embodiment thereof, this description does not have restricted, and shown in accompanying drawing is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the invention aim, without creatively designing the frame mode similar to this technical scheme and embodiment, all should protection scope of the present invention be belonged to.

Claims (16)

1. the LED automobile headlamp of a two light one, comprise lens carrier (3), lens (4), reflector and light source assembly, described lens (4) scioptics support (3) is installed on reflector, described light source assembly is located in reflector, it is characterized in that: be provided with dipped beam reflector (11) and distance light reflector (21) in described reflector, described dipped beam reflector (11) and distance light reflector (21) are oppositely arranged; Described light source assembly comprises distance light LED light source module (13) and dipped beam LED light source module (22), described distance light LED light source module (13) is towards distance light reflector (21), and described dipped beam LED light source module (22) is towards dipped beam reflector (11).
2. the LED automobile headlamp of a kind of pair of light one according to claim 1, it is characterized in that: described distance light LED light source module (13) is located at the centre of reflector, described dipped beam LED light source module (22) is provided with two groups, and the both sides of the distance light LED light source module (13) that is placed in.
3. the LED automobile headlamp of a kind of pair of light one according to claim 2, it is characterized in that: described dipped beam reflector (11) is made up of two symmetrical reflecting curved surfaces, and the corresponding one group of dipped beam LED light source module (22) of each reflecting curved surface; Described distance light reflector (21) is ellipsoid.
4. the LED automobile headlamp of a kind of pair of light one according to claim 3, is characterized in that: described distance light LED light source module (13) has the angle [alpha] tilted to dipped beam reflector (11) inner side, and 8 ° ≦ α≤12 °.
5. the LED automobile headlamp of a kind of pair of light one according to claim 4, it is characterized in that: the front end of described dipped beam reflector (11) is also provided with dead line diaphragm (9), described dead line diaphragm (9) is horizontally disposed with, and dead line diaphragm (9) is a cutting edge structure near the side of lens (4).
6. the LED automobile headlamp of a kind of pair of light one according to claim 2 to 5 any one, is characterized in that: described distance light LED light source module (13) and the LED chip of dipped beam LED light source module (22) are all arranged side by side along the direction of light injection.
7. the LED automobile headlamp of a kind of pair of light one according to claim 6, it is characterized in that: described distance light LED light source module (13) is the list group LED chip module of 2 × 4 encapsulation, described dipped beam LED light source module (22) is two groups of LED chip modules of 1 × 4 encapsulation.
8. the LED automobile headlamp of a kind of pair of light one according to claim 6, it is characterized in that: described reflector comprises the first heat radiation reflector (1) and the second heat radiation reflector (2), described dipped beam reflector (11) is located in the first heat radiation reflector (1), and described distance light reflector (21) is located in the second heat radiation reflector (2).
9. the LED automobile headlamp of a kind of pair of light one according to claim 8, is characterized in that: the first described heat radiation reflector (1) is positioned at the top of the second heat radiation reflector (2).
10. the LED automobile headlamp of a kind of pair of light one according to claim 9, it is characterized in that: in the left and right sides of described reflector, at least side is provided with radiator fan (5), radiator fan (5) forms air-flow and is taken away by the heat in the first heat radiation reflector (1) and the second heat radiation reflector (2).
The LED automobile headlamp of 11. a kind of pair of light one according to claim 10, it is characterized in that: also comprise driver and heat-sensitive sensor, described heat-sensitive sensor is installed on the LED chip module group substrates of distance light LED light source module (13) and dipped beam LED light source module (22), and be connected with actuator electrical, described driver is electrically connected with radiator fan (5), for detecting the rotating speed of the temperature information variable frequency adjustment radiator fan (5) obtained according to heat-sensitive sensor.
The LED automobile headlamp of 12. a kind of pair of light one according to claim 11, it is characterized in that: also comprise a day portable lighter assembly, described day portable lighter assembly is installed on the top of the first heat radiation reflector (1) or the below of the second heat radiation reflector (2).
The LED automobile headlamp of 13. a kind of pair of light one according to claim 12, it is characterized in that: described day portable lighter assembly comprises light-strip and inserts support (7) and light-strip LED light source substrate (8), described light-strip LED light source substrate (8) inserts support (7) by light-strip and is installed in the first heat radiation reflector (1) or the second heat radiation reflector (2).
The LED automobile headlamp of 14. a kind of pair of light one according to claim 13, it is characterized in that: described distance light LED light source module (13) is fixedly installed on the first heat radiation reflector (1) by the pillar (12) extended out by dipped beam reflector (11) middle part, and described dipped beam LED light source module (22) is fixedly installed on the second heat radiation reflector (2) respectively.
The LED automobile headlamp of 15. a kind of pair of light one according to claim 14, it is characterized in that: the first described heat radiation reflector (1) and the second heat radiation reflector (2) adopt full aluminium die cast, and the outer surface of the first heat radiation reflector (1) and the second heat radiation reflector (2) is equipped with radiating fin (6).
The LED automobile headlamp of 16. a kind of pair of light one according to claim 15, is characterized in that: described lens (4) are aspheric surface biconvex lens, and the material of lens (4) is high index of refraction optical grade PC.
CN201510297439.XA 2015-06-03 2015-06-03 Twin light integrated LED automobile headlamp Pending CN104864343A (en)

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CN106195856A (en) * 2016-07-20 2016-12-07 广州大泰光电科技有限公司 Guiding mechanism for the double light module of automobile LED
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CN111365679A (en) * 2020-04-30 2020-07-03 深圳市中创智远科技有限公司 Color temperature adjustable headlamp with multiple rows of light-emitting chips

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Application publication date: 20150826