CN205026550U - Vehicle headlamps of configuration LED short -distance beam light source - Google Patents
Vehicle headlamps of configuration LED short -distance beam light source Download PDFInfo
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- CN205026550U CN205026550U CN201520789025.4U CN201520789025U CN205026550U CN 205026550 U CN205026550 U CN 205026550U CN 201520789025 U CN201520789025 U CN 201520789025U CN 205026550 U CN205026550 U CN 205026550U
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- Prior art keywords
- led
- speculum
- beam light
- light source
- led chip
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 17
- 229910052736 halogen Inorganic materials 0.000 claims description 8
- 150000002367 halogens Chemical class 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000005286 illumination Methods 0.000 description 3
- 230000003287 optical Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 210000003128 Head Anatomy 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001808 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000001678 irradiating Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Abstract
The utility model provides a vehicle headlamps of configuration LED short -distance beam light source, including speculum, lens, positioning disk, far -reaching headlamp, LED short -distance beam banks and metal covering, the speculum is equipped with the parabolic shape of upper shed and under shed respectively for both ends, the lens sets up the under shed department of speculum, the far -reaching headlamp passes through the positioning disk sets up the upper shed department of speculum, the setting of LED short -distance beam banks is being close to one side of lens, the metal covering sets up on the speculum inner wall. Because LED passing lamp in group becomes the short -distance beam light beam, on the headlight high beam filament position, can not carry out layout design alone, do not have the intrinsic disadvantage that two lamp bulbs influenced each other in the configuration of distance light, and the asymmetric light and shade cut -off line of LED short -distance beam banks self can reduce the vehicle meeting vehicle -hour and " dazzle the eyes " the emergence of phenomenon.
Description
Technical field
The utility model relates to automobile lighting lamp field, refers to a kind of car headlamp configuring LED low beam light source especially.
Background technology
The operation principle of current most of automobile headlight illumination is: be placed in by spot light in the focus of the parabolic mirror of mathematics accurate shape, the light then fallen on the mirror is all reflected into the not variable cross-section narrow beam parallel with its optical axis by speculum, if disregard air dielectric decay, in theory its light beam have infinity depending on seeing distance, but be actually and there is not this situation.
The headlamp lighting of automobile is concerning traffic safety, it is not only that to illuminate vehicle front road so simple, its distance light has certain for seeing distance while requiring to illuminate vehicle front road, dipped beam then while illuminating trap for automobile its passing beam produce " dazzling the eyes " phenomenon can not to when vehicle intersection the vehicle drivers of head-on sailing, otherwise probably there are major traffic accidents.
All there is strict demand countries in the world to the passing beam of headlamp, have formed two kinds of systems for a long time: a kind of is the S.A.E standard formulated by the U.S., another kind of then be the E.C.E standard formulated by European commission.China is according to national conditions, E.C.E standard is adopted to carry out the manufacturing of specification domestic automobile headlamp, specifically, the two-filament bulb of distance-light can be produced, its dip filament emits beam by forming passing beam after speculum and lens, and with clear asymmetric light and shade by line, it still extends horizontally by line left-half, prevent from irradiating the eyes head-on sailing vehicle drivers, and cause " dazzling the eyes " and have an accident; Still then upwards extend in 15 ° of angles by line right half part, thus be on the right side of road surface, set up better illumination.Due to the manufacturing process upper deviation, the passing beam of headlamp often falls flat.
Utility model content
The purpose of this utility model is the radiation response in order to improve automobile headlight low beam light beam, make it closer to E.C.E prescribed by standard data, at the full glass headlamp of the rectangle with far and near light beam, to wherein remove by dip filament, its dipped beam function has been come by LED low beam light source module, like this as a filament of distance light, optimum position (focus on parabola) can be placed on and by being its configuration lens prism (not considering dipped beam requirement) separately, substantially improve the irradiation quality of driving beam.
The LED low beam light source chip selected is according to a determining deviation, angle, be arranged on the lower end part of rectangular lamps, and carry out secondary optical design formation low beam light source, can be formed and there is clear asymmetric light and shade by line, when vehicle meeting, cause " dazzling the eyes " phenomenon can not to opponent vehicle driver.
The technical solution of the utility model is achieved in that
A kind of car headlamp configuring LED low beam light source, comprise speculum, lens, positioning disk, high beam, LED low-beam light group and metal cap, described speculum is the paraboloidal that two ends are respectively equipped with upper shed and under shed, described lens is arranged on the lower opening of described speculum, described high beam is arranged on upper shed place of described speculum by described positioning disk, described LED low-beam light group is arranged on the side near described lens, and described metal cap is arranged on described speculum inwall.
As further improvement of the utility model, described LED low-beam light group comprises the first LED chip group, the second LED chip group and location-plate, described first LED chip group and the second LED chip group are arranged on described location-plate, and described location-plate is connected with described metal cap.
As further improvement of the utility model, described first LED chip group is arranged along the cross central line of described lens, and described second LED chip group and the first LED chip group are that the cross central line of lens described in 15 ° of angles is obliquely installed.
As further improvement of the utility model, described first LED chip group and the second LED chip group are respectively provided with 4 LED chip, and the light efficiency of described LED chip is 100lm/W, and colour temperature is 5500K.
As further improvement of the utility model, described lens is arranged with some plane cylinder-prisms along its cross central line centered by described high beam.
As further improvement of the utility model, described lens is tightly connected by high temperature resistant silica gel and described speculum.
As further improvement of the utility model, described metal cap is arranged on described speculum inwall by heat conductive silica gel.
As further improvement of the utility model, described high beam is monofilament halogen bulb.
As further improvement of the utility model, described location-plate is connected with described metal cap by argon arc welding.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is partial structurtes sectional view of the present utility model;
Fig. 2 is the upward view of structure shown in Fig. 1.
Mark in figure: 1-speculum; 11-upper shed; 12-under shed; 2-lens; 21-plane cylinder-prism; 3-positioning disk; 4-high beam; 5-LED dipped headlights group; 51-first LED chip group; 52-second LED chip group; 53-location-plate; Metal cap 6.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.
As depicted in figs. 1 and 2, a kind of car headlamp configuring LED low beam light source, comprises speculum 1, lens 2, positioning disk 3, high beam 4, LED low-beam light group 5 and metal cap 6.
Speculum 1 is respectively equipped with the paraboloidal of upper shed 11 and under shed 12 for two ends, and lens 2 is arranged under shed 12 place of speculum 1, and is tightly connected by high temperature resistant silica gel and speculum 1.
Speculum 1 adopts the rectangular glass speculum of GE company standard size (145mm × 200mm), because its light-emitting area is greater than similar round lamp, more importantly the horizontal size of rectangular mirror is large, be convenient to LED chip layout, easily obtain the dipped beam luminous intensity distribution conforming with European E.C.E standard.
Because lens 2 is essentially only driving beam service, the horizontal center line therefore along lens 2 vertically arranges some plane cylinder-prisms 21, and its function widens driving beam with uniform illumination road surface in the horizontal direction.
High beam 4 is arranged on upper shed 11 place of speculum 1 by positioning disk 3, and high beam 4 is monofilament halogen bulb.MaLS due to halogen bulb is only 400 hours, be significantly less than LED light source, coupling is obtained in order to make the life-span of halogen bulb and LED light source, need to be designed to changeable type, specifically the upper shed 11 of speculum 1 and positioning disk 3 are designed to the notch cooperatively interacted, to be convenient for changing high beam 4.
LED low-beam light group 5 is arranged on the side near lens 2, LED low-beam light group 5 comprises the first LED chip group 51, second LED chip group 52 and location-plate 53, first LED chip group 51 and the second LED chip group 52 are arranged on location-plate 53, and location-plate 53 is connected with metal cap 6 by argon arc welding.
First LED chip group 51 is arranged along the cross central line of lens 2, and the second LED chip group 52 and the cross central line of the first LED chip group 52 in 15 ° of angle lens 2 are obliquely installed, to obtain good dipped beam luminous intensity distribution.
First LED chip group 51 and the second LED chip group 52 are respectively provided with 4 LED chip, and the light efficiency of LED chip is 100lm/W, and colour temperature is 5500K, and the beam angle of its light-emitting window controls at about 5 ~ 6 °, certain for seeing distance to guarantee to have.
Metal cap 6 is arranged on speculum 1 inwall by heat conductive silica gel, and in its chrome-faced, to play the effect of reflection ray; Another important function of metal cap 6 is dispelled the heat to LED low-beam light group 5, to reduce the junction temperature of LED chip, can work at a suitable temperature.
In addition, LED low-beam light group 5 of the present utility model adopts external drive power mode, and reason is as follows:
(1) according to related data display, LED light source inefficacy nearly 65% is derived from driving power fault, in order to make the best use of everything, avoids built-in power to tie down bulb;
(2) external driving power is conducive to reducing LED low-beam light group 5 and is in operation the heat produced.
During driving at night, the dim head lights of automobile is often opened, at 200 hours, halogen filament was at most also at 400 hours, once damage the life-span of incandescent tengsten lamp, whole bulb must abandon and renew, adopt LED low-beam light group 5 then greatly life-extending, light efficiency also significantly increases, and (incandescent tungsten filament is 14-18lm/W to be about 100-120lm/W, halogen filament is 22-25lm/W), can reach with less power standard regulation depending on seeing distance.
Because LED low-beam light group 5 forms passing beam, not on headlight high beam filament position, layout design can be carried out separately, there is not two lamp bulb interactional intrinsic disadvantage in distance-light configuration, and the generation of " dazzling the eyes " phenomenon when the asymmetric "cut-off"line of LED low-beam light group 5 self can reduce vehicle meeting.
LED low-beam light group 5 start-up time short (being only for tens nanoseconds), when distance-light switches, leaves driver's more reaction time for, and minimizing accident occurs.
LED low-beam light group 5 directive property is strong, the lens at the different refraction angle of adapted can carry out secondary optical design, to be more easy to get asymmetric "cut-off"line clearly than halogen filament.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. one kind configures the car headlamp of LED low beam light source, it is characterized in that, comprise speculum, lens, positioning disk, high beam, LED low-beam light group and metal cap, described speculum is the paraboloidal that two ends are respectively equipped with upper shed and under shed, described lens is arranged on the lower opening of described speculum, described high beam is arranged on upper shed place of described speculum by described positioning disk, described LED low-beam light group is arranged on the side near described lens, and described metal cap is arranged on described speculum inwall.
2. the car headlamp of configuration LED low beam light source according to claim 1, it is characterized in that, described LED low-beam light group comprises the first LED chip group, the second LED chip group and location-plate, described first LED chip group and the second LED chip group are arranged on described location-plate, and described location-plate is connected with described metal cap.
3. the car headlamp of configuration LED low beam light source according to claim 2, it is characterized in that, described first LED chip group is arranged along the cross central line of described lens, and described second LED chip group and the first LED chip group are that the cross central line of lens described in 15 ° of angles is obliquely installed.
4. the car headlamp of configuration LED low beam light source according to claim 3, it is characterized in that, described first LED chip group and the second LED chip group are respectively provided with 4 LED chip, and the light efficiency of described LED chip is 100lm/W, and colour temperature is 5500K.
5. the car headlamp of configuration LED low beam light source according to claim 4, is characterized in that, described lens is arranged with some plane cylinder-prisms along its cross central line centered by described high beam.
6. the car headlamp of configuration LED low beam light source according to claim 5, it is characterized in that, described lens is tightly connected by high temperature resistant silica gel and described speculum.
7. the car headlamp of configuration LED low beam light source according to claim 6, it is characterized in that, described metal cap is arranged on described speculum inwall by heat conductive silica gel.
8. the car headlamp of configuration LED low beam light source according to claim 7, it is characterized in that, described high beam is monofilament halogen bulb.
9. the car headlamp of configuration LED low beam light source according to claim 8, it is characterized in that, described location-plate is connected with described metal cap by argon arc welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520789025.4U CN205026550U (en) | 2015-10-13 | 2015-10-13 | Vehicle headlamps of configuration LED short -distance beam light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520789025.4U CN205026550U (en) | 2015-10-13 | 2015-10-13 | Vehicle headlamps of configuration LED short -distance beam light source |
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| Publication Number | Publication Date |
|---|---|
| CN205026550U true CN205026550U (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520789025.4U Expired - Fee Related CN205026550U (en) | 2015-10-13 | 2015-10-13 | Vehicle headlamps of configuration LED short -distance beam light source |
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| Country | Link |
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| CN (1) | CN205026550U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106564423A (en) * | 2016-10-31 | 2017-04-19 | 马瑞利汽车零部件(芜湖)有限公司 | Anti-dazzling high beam light for automobile |
-
2015
- 2015-10-13 CN CN201520789025.4U patent/CN205026550U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106564423A (en) * | 2016-10-31 | 2017-04-19 | 马瑞利汽车零部件(芜湖)有限公司 | Anti-dazzling high beam light for automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20201013 |
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| CF01 | Termination of patent right due to non-payment of annual fee |