CN204986770U - LED vehicle headlamps's light structures - Google Patents

LED vehicle headlamps's light structures Download PDF

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Publication number
CN204986770U
CN204986770U CN201520681109.6U CN201520681109U CN204986770U CN 204986770 U CN204986770 U CN 204986770U CN 201520681109 U CN201520681109 U CN 201520681109U CN 204986770 U CN204986770 U CN 204986770U
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China
Prior art keywords
light source
led light
led
reflector
optical lens
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Expired - Fee Related
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CN201520681109.6U
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Chinese (zh)
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束旭初
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束旭初
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Abstract

The utility model provides a LED vehicle headlamps's light structures, including LED light source no. 1, the LED light source two, the reflector, optical lens and light barrier, the reflector adopts the reflector that has two at least above optical center, one of them optical center of reflector is located to LED light source no. 1, another optical center of reflector is located to LED light source no. 2, the LED light source one, LED light source no. 2 is with the distance that the accords with LED light source size setting of staggering, optical lens locates the light -emitting window department of reflector, light barrier and optical lens use optical lens to distribute as the axis is a ray of, adopt two LED luminous energy to make up, then through only optical lens, reach the car optical lens assembly of the rules demand that accords with the vehicle headlamps illumination completely, can accord with vehicle headlamps grading rules about the few requirement of single LED light source kind to solve the problem of lectotype difficulty.

Description

The light-source structure of automotive LED headlamp
Technical field
The utility model relates to a kind of light-source structure of automotive LED headlamp.
Background technology
Car headlamp and headlight for vehicles, headlamp is when driving at night, for distinguishing the lighting of forward looking view, is arranged on the both sides of vehicle front symmetrically.LED is a kind of electroluminescent device, utilizes solid semiconductor chip as luminescent material, causes photo emissions and directly luminous by carrier generation compound.LED headlight is exactly the ligthing paraphernalia utilizing LED to produce as light source.
Existing automotive LED headlamp optical lens modular structure generally uses a LED light source, a reflector and optical lens are combined into a headlamp optical lens assembly, wherein, need to use luminous flux to be greater than the LED light source of 1000LM, because light source module physical dimension is comparatively large, cause luminous intensity distribution more difficult.As the Chinese patent " a kind of headlight for vehicles light distribution structure and LED automobile headlamp " that publication number is CN103133997A.
Due to the technical bottleneck of LED chip and encapsulation, in small size, realizing LED light source, to reach the LED light source of car light statutory standard more difficult.Because LED light source size is bigger than normal, with conventional halogen or the contrast of HID glow discharge spot lamp, it is bigger than normal that single led light source luminescent chip module meets car light dimension of light source, and be greater than conventional halogen bulb or gas-discharge lamp filament size, the technical difficulty such as light distribution structure heat radiation are caused to increase, as the Chinese patent " LED automobile headlamp " of the Chinese patent CN101936494A that publication number is.
Current LED technology single luminous flux is less than 3.5mm*3.5mm more than the light source chip size of 500LM, optical lens for automobile headlight module size conventional is on the market generally the optical lens of diameter 70mm optical lens or diameter 80mm, with this, also also exist and adopt the light source chip of many luminous fluxes more than 500LM and the problem being optically difficult to mate of existing optical lens.
Utility model content
The purpose of this utility model is to provide the single led light source of solution existed in a kind of light-source structure solution prior art of automotive LED headlamp and realizes automobile distance light or the larger cost of dipped beam technical difficulty, the problems such as cost is higher.
Technical solution of the present utility model is:
A kind of light-source structure of automotive LED headlamp, comprise LED light source one, LED light source two, reflector, optical lens and light barrier, reflector adopts the reflector with at least two or more optical centre, LED light source one is located at one of them optical centre of reflector, LED light source two is located at another optical centre of reflector, LED light source one, LED light source two to stagger setting with the distance meeting LED light source size, the light-emitting window place of reflector is located at by optical lens, light barrier and optical lens take optical lens as the distribution of axis one line, optical lens is positioned at the light-emitting window position of axis, light barrier is positioned at inside optical lens.
Further, stagger to arrange or stagger with the direction vertical with the axis of optical lens and arrange in LED light source one, LED light source two front and back on the axis of optical lens, reflector one and reflector two stagger with the distance meeting LED light source size and arrange.
Further, the distance that staggers of LED light source one, LED light source two is for being not less than the diameter of LED light source.
Further, reflector adopts an overall reflector or adopts the plural reflector be separated to combine.
Further, the reflecting surface of reflector adopts parabola, ellipsoid or free form surface.
Further, optical lens is provided with optics cambered surface or optical patterns.
Further, LED light source one and LED light source two are jointly as two LED light sources of long-distance light, and LED light source one and LED light source two are jointly as two LED light sources of dim head lights;
Or, one in LED light source one and LED light source two as long-distance light LED light source, in LED light source one and LED light source two, another one is as dim head lights LED light source.
Further, at LED light source one and LED light source two common or one of them as dipped beam LED light source time, in the middle of reflector and optical lens, light barrier is set.
Further, the light that LED light source one sends by reflector reflecting focal on optical lens, the light that LED light source two sends by reflector reflecting focal on optical lens, two-beam respectively by optical lens refraction after, the light type of the car headlamp required for formation.
The beneficial effects of the utility model are, the light-source structure of this kind of automotive LED headlamp, and tool has the following advantages:
One, car headlamp luminous intensity distribution regulation can be met about the few requirement of single LEDs light source kind, and solve the problem of type selecting difficulty.
Two, adopt two LEDs light source luminescent energy bins altogether, use reflector, then by unique optical lens, reach the vehicular optical lens assembly of the regulation demand meeting automobile headlight illumination completely.
Three, without the need to changing original optical lens for automobile headlight diameter, two light source and speculum is used to realize replacing, to realize improving under the prerequisite of low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the light-source structure of the utility model embodiment one automotive LED headlamp;
Fig. 2 is the plan view of the light-source structure of automotive LED headlamp in embodiment one;
Fig. 3 is the structural representation of reflector in embodiment one;
Fig. 4 is that the formation of the light type of automotive LED headlamp in embodiment one illustrates schematic diagram;
Fig. 5 is the structural representation of the light-source structure of automotive LED headlamp in embodiment two;
Wherein: 1-LED light source one, 2-LED light source two, 3-reflector, 4-optical lens, 5-light barrier.
Detailed description of the invention
Preferred embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
Embodiment one
A kind of light-source structure of automotive LED headlamp, as Fig. 1 and Fig. 2, comprise LED light source 1, LED light source 22, reflector 3, optical lens 4 and light barrier 5, reflector 3 adopts the reflector 3 with at least two or more optical centre, LED light source 1 is located at one of them optical centre of reflector 3, LED light source 22 is located at another optical centre of reflector 3, LED light source 1, LED light source 22 to stagger setting with the distance meeting LED light source size, as Fig. 3, the light-emitting window place of reflector 3 is located at by optical lens 4, light barrier 5 and optical lens 4 are the distribution of axis one line with optical lens 4, optical lens 4 is positioned at the light-emitting window position of axis, light barrier 5 is positioned at inside optical lens 4.
LED light source 1, LED light source 22 on the axis of optical lens 4 before and after to stagger settings, reflector 3 one and reflector 3 two stagger with the distance meeting LED light source size and arrange.The distance that staggers of LED light source 1, LED light source 22 is for being not less than the diameter of LED light source.
Reflector 3 adopts the plural reflector 3 in umbellate form be separated to combine.The reflecting surface of reflector 3 adopts parabola, ellipsoid or free form surface.
Optical lens 4 is provided with optics cambered surface or optical patterns, carrys out refracted ray.
As Fig. 4, light barrier 5 is located between reflector 3 and optical lens 4, at LED light source 1 and LED light source 22 common or one of them as dipped beam LED light source time, in the middle of reflector 3 and optical lens 4, light barrier 5 is set.Light barrier 5 only uses on LED dim head lights optics module, light barrier 5 has the light-shielding structure meeting dim head lights optical requirement
In order to obtain comparatively ideal effect, dim head lights optical lens 4 and reflector 3 zone line use light barrier 5.LED light source 1 and LED light source 22 can with two LED light sources as dim head lights, also can respectively as long-distance light LED light source, dim head lights LED light source, the light sent as LED light source 1 obtains pooling the light of certain angle by reflector 3 one reflection, and then reflect into light by optical lens 4 and obtain automobile distance light, the light that same LED light source 22 sends obtains pooling the light of certain angle by reflector 3 two reflection, "cut-off"line is clearly needed obtained the requirement of automobile headlight low beam by light barrier 5 under, and then reflect into light by optical lens 4 and obtain dipped beam.
As shown in Figure 4, the light that LED light source 1 sends by reflector 3 reflecting focal on optical lens 4, the light that LED light source 22 sends by reflector 3 reflecting focal on optical lens 4, two-beam respectively by optical lens 4 reflect after, the light type of the car headlamp required for formation.
Wherein, the distance meeting LED light source size of LED light source 1, LED light source 22 refers to LED light source 1, LED light source 22 can meet the position optically required, for solving LED light source 1, the setting position of LED light source 22 can not overlap the problem arranged, and LED light source 1, LED light source 22 to be staggered setting with the distance of the diameter being not less than LED light source.
LED light source 1, LED light source 22 can adopt single high-power LED light source also can be that several high-power LED chip splices the LED light source be encapsulated; LED light source luminous flux is not of uniform size.
Embodiment two
Embodiment two is substantially identical with the structure of embodiment one, embodiment two is with the structure difference of embodiment one: the reflector 3 of embodiment two adopts an overall reflector 3, LED light source 1, LED light source 22 stagger with the direction vertical with the axis of optical lens 4 and arrange, as Fig. 5.
In embodiment one, embodiment two, the light energy that LED light source 1 and LED light source 22 send reflects into the light type of needs by unified optical lens 4, reflector 3 is the reflecting surface of light, the light that LED light source 1, LED light source 22 send reflects respectively by reflector 3, and then reflecting bright dipping through optical lens 4, the outer surface that optical lens 4 is positioned at light-emitting window plays refraction and appearance.
The automotive LED headlamp optics modular structure of embodiment one, embodiment two can be automotive LED headlamp distance light modular structure, also can be automotive LED headlamp dipped beam optical texture, or automotive LED headlamp distance-light one modular structure.
The light-source structure of this kind of automotive LED headlamp, by increasing by one group of LED light source on the basis of automotive LED headlamp optical lens 4 module optical texture, so just the light energy of the LED light source originally needing use one group of larger light energy is reduced half, the LED module being respectively 1/2nd of original light energy with two is combined into automotive LED headlamp optical lens 4 module that meets automobile luminous intensity distribution regulation.This reduces the requirement of product design to LED light source, and the current market high-power small-size chips of LED can be made substantially to meet this requirement.

Claims (8)

1. the light-source structure of an automotive LED headlamp, it is characterized in that: comprise LED light source one, LED light source two, reflector, optical lens and light barrier, reflector adopts the reflector with at least two or more optical centre, LED light source one is located at one of them optical centre of reflector, LED light source two is located at another optical centre of reflector, LED light source one, LED light source two to stagger setting with the distance meeting LED light source size, the light-emitting window place of reflector is located at by optical lens, light barrier and optical lens take optical lens as the distribution of axis one line, optical lens is positioned at the light-emitting window position of axis, light barrier is positioned at inside optical lens.
2. the light-source structure of automotive LED headlamp as claimed in claim 1, it is characterized in that: stagger to arrange or stagger with the direction vertical with the axis of optical lens and arrange in LED light source one, LED light source two front and back on the axis of optical lens, reflector one and reflector two stagger with the distance meeting LED light source size and arrange.
3. the light-source structure of automotive LED headlamp as claimed in claim 2, is characterized in that: the distance that staggers of LED light source one, LED light source two is for being not less than the diameter of LED light source.
4. the light-source structure of automotive LED headlamp as claimed in claim 1, is characterized in that: reflector adopts an overall reflector or adopts the plural reflector be separated to combine.
5. the light-source structure of the automotive LED headlamp as described in any one of claim 1-4, is characterized in that: the reflecting surface of reflector adopts parabola, ellipsoid or free form surface.
6. the light-source structure of the automotive LED headlamp as described in any one of claim 1-4, is characterized in that: optical lens is provided with optics cambered surface or optical patterns.
7. the light-source structure of automotive LED headlamp as claimed in claim 1, it is characterized in that: LED light source one and LED light source two are jointly as two LED light sources of long-distance light, and LED light source one and LED light source two are jointly as two LED light sources of dim head lights;
Or, one in LED light source one and LED light source two as long-distance light LED light source, in LED light source one and LED light source two, another one is as dim head lights LED light source.
8. the light-source structure of automotive LED headlamp as claimed in claim 1, is characterized in that: LED light source one and LED light source two is common or one of them as dipped beam LED light source time, in the middle of reflector and optical lens, light barrier is set.
CN201520681109.6U 2015-09-06 2015-09-06 LED vehicle headlamps's light structures Expired - Fee Related CN204986770U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520681109.6U CN204986770U (en) 2015-09-06 2015-09-06 LED vehicle headlamps's light structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520681109.6U CN204986770U (en) 2015-09-06 2015-09-06 LED vehicle headlamps's light structures

Publications (1)

Publication Number Publication Date
CN204986770U true CN204986770U (en) 2016-01-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105135318A (en) * 2015-09-06 2015-12-09 束旭初 Light source structure of automotive LED headlamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105135318A (en) * 2015-09-06 2015-12-09 束旭初 Light source structure of automotive LED headlamp

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160120

Termination date: 20180906