CN102519003A - LED (Light-Emitting Diode) three-dimensional packaging-based vehicle headlamp and vehicle illumination method - Google Patents
LED (Light-Emitting Diode) three-dimensional packaging-based vehicle headlamp and vehicle illumination method Download PDFInfo
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- CN102519003A CN102519003A CN2012100120343A CN201210012034A CN102519003A CN 102519003 A CN102519003 A CN 102519003A CN 2012100120343 A CN2012100120343 A CN 2012100120343A CN 201210012034 A CN201210012034 A CN 201210012034A CN 102519003 A CN102519003 A CN 102519003A
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Abstract
The invention discloses an LED (Light-Emitting Diode) three-dimensional packaging-based vehicle headlamp. The vehicle headlamp comprises a reflecting mirror and an LED three-dimensional packaging light source which is arranged in the reflecting mirror, wherein the LED three-dimensional packaging light source comprises a base; the base is provided with at least two light-emitting areas capable of controlling light independently; each light-emitting area comprises at least one LED chip mounting surface; the LED chip mounting surfaces faces to different directions; an LED chip is arranged on each LED chip mounting surface; a packaging body covers the LED chip; and the inner wall of the reflecting mirror is opposite to each LED chip mounting surface. Since the reflecting mirror and the LED three-dimensional packaging light source are provided and the light source is provided with at least two light-emitting areas capable of controlling light independently, the change of an emergent direction or angle of the headlamp is achieved by controlling lightening of the LEDs of a certain or some light-emitting areas and extinguishing of the LEDs of other light-emitting areas and through combining with the reflecting mirror. The invention also discloses a vehicle illumination method which is capable of improving the safety of a vehicle running at night.
Description
Technical field
The present invention relates to a kind of automobile front based on the LED three-dimension packaging, relate to particularly that a kind of direction of illumination is controlled, projection distance far and near adjustable based on the LED three-dimension packaging automobile front and utilize this automotive lighting method based on the automobile front of LED three-dimension packaging.
Background technology
Existing automobile front majority is a metal halid lamp, and efficient is low, energy consumption is big.In recent years, along with the development of LED technology, the LED auto lamp has also obtained developing rapidly, the LED car light has that monochromaticjty is good, the life-span long, light do not have delay, focus that advantage such as little in light weight, the green illumination of high efficiency low energy consumption, volume becomes car light market.
Automobile front is loaded on automobile head both sides, is used for the illumination of driving at night road, and the illuminating effect of headlight directly influences operation and the traffic safety that driving at night is driven.The orthodox car headlight has fixing range and angle; Automobile in night running owing to can't regulate illumination range and angle; Usually can occur that the driver does not see road sign or the light direct projection is gone in the other side driver eye, greatly threaten the safety of driving at driver's night.Therefore, working out the automobile front that can realize light exit direction and adjustable angle control is significant.
Application number is the one Chinese patent application of CN201120086858.6; A kind of planar light source is provided; The emission angle that this kind planar light source is regulated light source mainly is the motion that drives a series of elements through rotary screw; The substrate angular emission of LED lamp unit is changed, and then the angle of departure of light source is changed, reach the purpose of utilizing focus adjusting mechanism to realize changing LED light emission angle.Because single led luminous flux is little, present automobile front is in order to improve light efficiency, and led light source generally adopts the plurality of LEDs array design methodology to be assembled into planar light source, but it has following shortcoming:
1) the planar light source integrated level is low, the total light flux that can't provide automobile front to need;
2) bulky;
3) need could realize the regulation and control of light shooting angle by mechanism system, mechanism system comprises drive motors and a plurality of moving component, and long-term dependability is relatively poor;
4) cost is high.
Summary of the invention
In view of this, the objective of the invention is to, a kind of automobile front based on the LED three-dimension packaging is provided; Can specify the chip of light-emitting zone to light through control; And the not bright mode of other light-emitting zones cooperates mirror design simultaneously, realizes that the headlight direction of illumination changes.Based on this, the present invention also provides a kind of automotive lighting method, utilizes aforesaid automobile front based on the LED three-dimension packaging to realize the road surface emergency lighting.
The object of the invention adopts following technical scheme to realize:
A kind of automobile front based on the LED three-dimension packaging; Comprise speculum and be arranged on the LED three-dimension packaging light source in the speculum; Said LED three-dimension packaging light source comprises pedestal, and said pedestal is provided with at least two light-emitting zones that can independently control light, and each light-emitting zone is made up of at least one led chip installed surface; Each led chip installed surface is towards different directions; Each led chip installed surface is provided with led chip, is coated with packaging body on the led chip, and the inwall of said speculum is relative with each led chip installed surface.
Preferably, said pedestal is a multiedge cylinder, and each side is as the led chip installed surface.
Preferably, the inwall of said speculum is provided with a plurality of big reflectings surface that are provided with around the speculum center, and each big reflecting surface corresponding one can independently be controlled the light-emitting zone of light.
Preferably, each is formed by a plurality of little reflectings surface adjacency at reflecting surface.
Preferably, the inwall of said speculum is processed by smooth surface, and said smooth surface is divided into the different zone of a plurality of curvature along light direction.
Preferably, said packaging body is a package lens.
Preferably, the center of said pedestal be provided with one run through the pedestal two ends installing hole, be provided with heat pipe in the said installing hole, it is outer and directly be connected with radiator that an end of said heat pipe extend out to pedestal.
Preferably, the connected mode of said heat pipe and pedestal is that interference fit or said heat pipe and pedestal are into a single integrated structure.
Preferably, also be provided with one and turn to hunting gear, the said hunting gear that turns to comprises:
Sensor obtains the turn signal of automobile;
The running light controller sends the light control instruction according to the turn signal of automobile;
Led driver is lighted the led chip of corresponding light-emitting zone according to the light control instruction.
Automotive lighting method of the present invention utilizes aforesaid automobile front based on the LED three-dimension packaging to carry out, and comprises the steps:
Obtain the turn signal of automobile;
Turn signal according to automobile sends the light control instruction;
According to the light control instruction that receives, light the led chip of corresponding light-emitting zone on the automobile front pedestal;
Light-emitting zone that led chip is lighted cooperates corresponding speculum to make the change of automobile front exit direction, angle or range.
Compared with prior art, the automobile front based on the LED three-dimension packaging of the present invention has following advantage:
The present invention is owing to be provided with speculum and LED three-dimension packaging light source; LED three-dimension packaging light source is provided with at least two light-emitting zones that can independently control light; Therefore utilize control led chip a certain or some light-emitting zone to light; And other light-emitting zone led chips are not lighted, and cooperate mirror design, reach the change of headlight exit direction or angle; Also can control the distance of light source transmission simultaneously, high beam, dipped headlights can be integrated in the same light source; Can satisfy the irradiation demand under the varying environment.
Automobile front based on the LED three-dimension packaging of the present invention can be provided with and turn to hunting gear, under no external rotating component condition, realizes the light auto-steering function, the security that cost is low, reliability is high, improve nighttime driving;
Further, the pedestal of LED three-dimension packaging light source adopts the structure of polygon prism, and led chip adopts the three-dimensional encapsulation of polygon prism, and volume is little, packaging density is big, the total light flux that can provide automobile front to need;
Further, the pedestal end face of LED three-dimension packaging light source does not encapsulate, and especially the top is not luminous, so does not need during luminous intensity distribution in light source the place ahead the structure that is in the light to be set, and is simple in structure;
Further, the pedestal center of LED three-dimension packaging light source is provided with installing hole, forms hollow-core construction, can form interference fit with heat pipe, need not be coated with heat-conducting medium in the heat pipe outside and still the high-efficiency reliable heat transfer property can be provided;
Further, the heat pipe that is installed in the installing hole on the pedestal extends to the light source outside, directly links to each other with radiator, and littler system's thermal resistance can be provided;
Further, the design that the speculum inwall of automobile front adopts a plurality of big reflectings surface, each big reflecting surface to be made up of little reflecting surface again, mixed light is effective, not color separation, and separated regions control headlight direction of illumination;
Further, led chip adopts a package lens, and different distribution curve fluxs can be provided, and adapts to different mirror design.
Description of drawings
Figure 1A is the structural representation based on LED three-dimension packaging light source among the automobile front embodiment one of LED three-dimension packaging of the present invention;
Figure 1B is the structural representation that light source is removed packaging body among Fig. 1;
Fig. 2 A is the front view of the automobile front embodiment one based on the LED three-dimension packaging of the present invention;
Fig. 2 B is the side view of Fig. 2 A;
Fig. 2 C is the vertical view of Fig. 2 A;
Fig. 2 D is the axis side view that waits of Fig. 2 A;
Fig. 3 A is the sketch map that the automobile front based on the LED three-dimension packaging of the present invention sends left steering light;
Fig. 3 B is the sketch map of line direction light before the automobile front based on the LED three-dimension packaging of the present invention sends;
Fig. 3 C is the sketch map that the automobile front based on the LED three-dimension packaging of the present invention sends right turn light;
Fig. 3 D is the sketch map that the automobile front based on the LED three-dimension packaging of the present invention sends irradiation at short distance light;
Fig. 3 E is the sketch map that the automobile front based on the LED three-dimension packaging of the present invention sends telecurie irradiation light;
Fig. 3 F is that the automobile front based on the LED three-dimension packaging of the present invention sends the most extensively sketch map of regional extent light;
Fig. 4 is the mirror structure sketch map of the automobile front embodiment two based on the LED three-dimension packaging of the present invention;
Fig. 5 is the mirror structure sketch map of the automobile front embodiment three based on the LED three-dimension packaging of the present invention;
Fig. 6 is the structural representation of the automobile front embodiment four based on the LED three-dimension packaging of the present invention;
Fig. 7 A is the sketch map that turns to hunting gear among the automobile front embodiment five based on the LED three-dimension packaging of the present invention;
Fig. 7 B is the course of work sketch map that turns to hunting gear among the automobile front embodiment five based on the LED three-dimension packaging of the present invention;
Fig. 8 A is the automobile sketch map when curved of preparing under steam to turn right;
Fig. 8 B is the automobile that the uses traditional headlight light sketch map when curved of preparing under steam to turn right;
Fig. 8 C is the automobile that uses the automobile front the present invention is based on the LED three-dimension packaging light sketch map when curved of preparing under steam to turn right.
The specific embodiment
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and concrete embodiment.
Embodiment one
Shown in Figure 1A, 1B; LED three-dimension packaging light source 1 in the present embodiment; Comprise pedestal 11, be arranged on led chip 12 on the pedestal 11, cover the packaging body 13 on the led chip 12; Have the interior encapsulated layer 131 that contains fluorescent material in the packaging body 13, and the outer surface 132 of packaging body 13 is the encapsulation of nonplanar curved surface, so that different distribution curve fluxs to be provided.
In the present embodiment; Pedestal 11 is a hexagonal prism; Its each side is all as the chip installed surface; This pedestal 11 has two and goes up the left installed surface of the following installed surface of installed surface 111, two 112,113, a right installed surface 114, and each led chip installed surface is equipped with a plurality of led chips 12 towards different directions on each led chip installed surface.Pedestal 11 centers are provided with installing hole 115, and the cross section of installing hole 115 is circular or other polygonized structures.Light-emitting zone 116 and back light-emitting zone 117 before LED three-dimension packaging light source 1 is divided into.
Shown in Fig. 2 A～2D, the automobile front 2 based on the LED three-dimension packaging in the present embodiment comprises LED three-dimension packaging light source 1 and speculum 21; LED three-dimension packaging light source 1 is located in the speculum 21; The inwall of speculum 21 adopts a plurality of big reflectings surface 211 to rearrange down the narrow wide free form surface of, and is arranging a plurality of little reflectings surface 212 on each big reflecting surface 211, is formed by a plurality of little reflectings surface 212 adjacency; Little reflecting surface 212 can be the plane, also can be the curved surface with certain curvature.The inwall of reflecting surface 211 is provided with high reflective material coatings, and this high reflective material coatings can be silver, nickel, chromium or other metal coating.Each reflecting surface 211 corresponding each can independently control the light-emitting zone of light, light-emitting zone is made up of one or more chip installed surfaces.In the present embodiment, little reflecting surface 212 is along horizontal expansion; In other embodiments, little reflecting surface 212 can also be to extend longitudinally or other design, is not limited to present embodiment.
Shown in Fig. 3 A; When the led chip on the installed surface 113 of a pedestal left side is lighted; And the LED on other installed surface is not when bright, the light that the speculum of corresponding left area sends LED reflex to the left front to, automobile front at this time just sends the light of direction irradiation to the left.Shown in Fig. 3 B, when the LED on the installed surface 111,112 about the pedestal lights, promptly send the light of preceding line direction in conjunction with the effect of speculum; Shown in Fig. 3 C, when the led chip on the right installed surface 114 of pedestal is lighted, promptly send right turn light in conjunction with the effect of speculum; Speculum is strong more to the collimation capability of light; What lamp just can photograph so is farther, on the contrary, then according near; When the latter half of speculum adopts strong curved design of diffusivity and first half to utilize the strong curved design of collimation; Shown in Fig. 3 D, when the led chip of light-emitting zone behind the light source 117 is lighted, promptly send the light of nearby region irradiation; Shown in Fig. 3 E, when the led chip of light-emitting zone before the light source 116 is lighted, promptly send the light of remote zone irradiation; Shown in Fig. 3 F, when the led chip on whole installed surfaces is lighted simultaneously, promptly send the irradiates light in the big regional extent.Can select to light the led chip of an installed surface on the pedestal or the led chip of any two or more installed surfaces, reach the irradiation requirement under different driving environments.
Embodiment two
As shown in Figure 4; The difference of present embodiment and embodiment one is; The inwall of speculum 41 only is made up of a plurality of big reflectings surface 411; A plurality of big reflectings surface 411 rearrange down the narrow wide free form surface of, each reflecting surface 411 corresponding each can independently control the light-emitting zone of light, light-emitting zone is made up of one or more chip installed surfaces.
Embodiment three
As shown in Figure 5, the difference of present embodiment and embodiment one is that the reflecting surface of speculum 51 is only formed the narrow down wide free form surface of by smooth surface 511, and smooth surface 511 is along being divided into a plurality of zones on the light direction, and each regional curvature is different.
Embodiment four
As shown in Figure 6; The difference of present embodiment and embodiment one is; The automobile front based on the LED three-dimension packaging in the present embodiment comprises LED three-dimension packaging light source 1, speculum 21, heat pipe 61, radiator 62, and LED three-dimension packaging light source 1 is located in the speculum 21.Heat pipe 61 adopts interference fit to be connected with installing hole 115, and heat pipe 61 extends to light source 1 outside and directly links to each other with radiator 62.
Embodiment five
Shown in Fig. 7 A, Fig. 7 B, in the present embodiment based on the automobile front of LED three-dimension packaging except that comprising LED three-dimension packaging light source and speculum, also comprise turning to hunting gear, can under no external rotating component condition, realize the light auto-steering function., in the automobile front based on the LED three-dimension packaging in the present embodiment, turn to hunting gear to comprise:
Sensor obtains the turn signal of automobile;
The running light controller sends the light control instruction according to the turn signal of automobile;
Led driver is lighted the led chip in corresponding light source luminescent zone according to the light control instruction.
Automobile front in the present embodiment based on the LED three-dimension packaging, the course of work after being installed on the automobile is:
When vehicle steering turns to certain angle; The turn signal of sensor sensing automobile; The signal that running light controller receiving sensor transmits is also handled the back and is sent the light control instruction to LED headlight driver; Led driver is lighted the led chip in corresponding light source luminescent zone according to the light control instruction, thereby control LED headlight sends left steering, moves ahead or right turn light.The LED headlight of this follow-up steering of present embodiment can be controlled the rising angle of headlight automatically according to road speed, steering angle etc., and omnibearing emergency lighting is provided, and all has best visibility at any time to guarantee the driver.
Shown in Fig. 8 A～8C, when automobile Q1 turns right when curved, owing to use traditional headlight; So light can directly be injected in automobile Q2 driver's the eye; And when automobile use being provided with in the present embodiment turn to hunting gear based on the automobile front of LED three-dimension packaging the time, send right turn light based on the automobile front of LED three-dimension packaging, can avoid the light direct projection to go in the other side's automobile Q2 driver eye; Can illuminate " blind area " of curve inner side again in advance, improve the security of nighttime driving.
Automotive lighting method of the present invention is that the automobile front based on the LED three-dimension packaging that on automobile, is provided with in the previous embodiment is achieved, and it comprises the steps:
Obtain the turn signal of automobile;
Turn signal according to automobile sends the light control instruction;
According to the light control instruction that receives, light the led chip of corresponding light-emitting zone on the automobile front pedestal;
The light-emitting zone that led chip is lighted cooperates corresponding speculum, makes automobile front exit direction, angle or range change.
Automotive lighting method of the present invention; When motor turning, the led chip of corresponding light-emitting zone is lighted on the control pedestal, and the led chip of all the other light-emitting zones is not lighted; Feasible automobile front based on the LED three-dimension packaging sends the light that this turns to; Can avoid the light direct projection to go in the other side car steering person eye, can illuminate " blind area " of curve inner side again in advance, the security that improves nighttime driving greatly.
More than the present invention has been carried out detailed introduction, use concrete example in the literary composition principle of the present invention and embodiment set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. automobile front based on the LED three-dimension packaging; Comprise speculum and be arranged on the LED three-dimension packaging light source in the speculum, it is characterized in that said LED three-dimension packaging light source comprises pedestal; Said pedestal is provided with at least two light-emitting zones that can independently control light; Each light-emitting zone is made up of at least one led chip installed surface, and each led chip installed surface is towards different directions, and each led chip installed surface is provided with led chip; Be coated with packaging body on the led chip, the inwall of said speculum is relative with each led chip installed surface.
2. the automobile front based on the LED three-dimension packaging as claimed in claim 1 is characterized in that, said pedestal is a multiedge cylinder, and each side is as the led chip installed surface.
3. the automobile front based on the LED three-dimension packaging as claimed in claim 1 is characterized in that, the inwall of said speculum is provided with a plurality of big reflectings surface that are provided with around the speculum center, and each big reflecting surface corresponding one can independently be controlled the light-emitting zone of light.
4. the automobile front based on the LED three-dimension packaging as claimed in claim 3 is characterized in that, each big reflecting surface is formed by a plurality of little reflectings surface adjacency.
5. the automobile front based on the LED three-dimension packaging as claimed in claim 1 is characterized in that the inwall of said speculum is processed by smooth surface, and said smooth surface is divided into the different zone of a plurality of curvature along light direction.
6. the automobile front based on the LED three-dimension packaging as claimed in claim 1 is characterized in that, said packaging body is a package lens.
7. the automobile front based on the LED three-dimension packaging as claimed in claim 1; It is characterized in that; The center of said pedestal be provided with one run through the pedestal two ends installing hole, be provided with heat pipe in the said installing hole, it is outer and directly be connected with radiator that an end of said heat pipe extend out to pedestal.
8. the automobile front based on the LED three-dimension packaging as claimed in claim 7 is characterized in that, the connected mode of said heat pipe and pedestal is that interference fit or said heat pipe and pedestal are into a single integrated structure.
9. the automobile front based on the LED three-dimension packaging as claimed in claim 1 is characterized in that, also is provided with one and turns to hunting gear, and the said hunting gear that turns to comprises:
Sensor obtains the turn signal of automobile;
The running light controller sends the light control instruction according to the turn signal of automobile;
Led driver is lighted the led chip of corresponding light-emitting zone according to the light control instruction.
10. an automotive lighting method is characterized in that, utilizes the automobile front based on the LED three-dimension packaging of claim 1～9 to carry out, and comprises the steps:
Obtain the turn signal of automobile;
Turn signal according to automobile sends the light control instruction;
According to the light control instruction that receives, light the led chip of corresponding light-emitting zone on the automobile front pedestal;
The light-emitting zone that led chip is lighted cooperates corresponding speculum, makes automobile front exit direction, angle or range change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100120343A CN102519003A (en) | 2012-01-13 | 2012-01-13 | LED (Light-Emitting Diode) three-dimensional packaging-based vehicle headlamp and vehicle illumination method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100120343A CN102519003A (en) | 2012-01-13 | 2012-01-13 | LED (Light-Emitting Diode) three-dimensional packaging-based vehicle headlamp and vehicle illumination method |
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| CN102519003A true CN102519003A (en) | 2012-06-27 |
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| CN2012100120343A Pending CN102519003A (en) | 2012-01-13 | 2012-01-13 | LED (Light-Emitting Diode) three-dimensional packaging-based vehicle headlamp and vehicle illumination method |
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| CN103542380A (en) * | 2012-07-13 | 2014-01-29 | Lg伊诺特有限公司 | Lamp unit and lighting system for vehicle |
| CN104121492A (en) * | 2013-04-25 | 2014-10-29 | 国立中央大学 | Led lamp device |
| CN104842864A (en) * | 2015-05-20 | 2015-08-19 | 吴勇智 | Method for changing high-beam light and low-beam light of vehicular LED (light-emitting diode) lamp and light changing device |
| CN104864339A (en) * | 2015-03-12 | 2015-08-26 | 吴喜荣 | LED automobile lampwick and LED automobile light source |
| WO2016008213A1 (en) * | 2014-07-17 | 2016-01-21 | 杨道达 | Led automobile lamp and manufacturing method thereof, and automobile headlamp assembly |
| CN105398370A (en) * | 2015-11-26 | 2016-03-16 | 马瑞利汽车零部件(芜湖)有限公司 | Mechanism capable of enabling vehicle headlamp to steer along with vehicle in static and self-adapting manner |
| US9809149B2 (en) | 2012-07-13 | 2017-11-07 | Lg Innotek Co., Ltd | Lamp and vehicle lamp apparatus using the same |
| CN107448865A (en) * | 2017-07-14 | 2017-12-08 | 达运精密工业股份有限公司 | Light reflector and lighting device with same |
| CN109058920A (en) * | 2018-08-17 | 2018-12-21 | 常州星宇车灯股份有限公司 | A kind of lighting signal device |
| CN112664900A (en) * | 2020-12-29 | 2021-04-16 | 西安电子科技大学芜湖研究院 | Novel follow-up steering automobile headlamp |
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Application publication date: 20120627 |