CN103017058B - LED (Light Emitting Diode) headlamp of automobile - Google Patents
LED (Light Emitting Diode) headlamp of automobile Download PDFInfo
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- CN103017058B CN103017058B CN201210522357.7A CN201210522357A CN103017058B CN 103017058 B CN103017058 B CN 103017058B CN 201210522357 A CN201210522357 A CN 201210522357A CN 103017058 B CN103017058 B CN 103017058B
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Abstract
The invention relates to an LED (Light Emitting Diode) headlamp of an automobile. Five strip bulges are formed in parallel on the bottom surface of a dipped inner lens and respectively comprise a middle bulge, a first left bulge, a second left bulge, a first right bulge and a second right bulge, wherein the middle bulge is positioned in the middle, and the first left bulge, the second left bulge, the first right bulge and the second right bulge are positioned on both sides; the surface of the middle bulge is an arced surface, and the radius of curvature of the arced surface is 10 to 27 mm; the radius of curvature of the arced surface of the first left bulge is 1 to 350 mm; the radius of curvature of the arced surface of the second left bulge is 3 to 85 mm; the radius of curvature of the arced surface of the first right bulge is 80 to 380 mm; and the radius of curvature of the arced surface of the second right bulge is 9 to 94 mm. According to the LED headlamp, after light rays pass through the dipped inner lens, a dipped light pattern with obvious dark-and-light dead lines can be obtained, the light rays with a large angle can be effectively utilized, the utilization rate of the luminous flux can be effectively increased, so that the irradiation distance and width of light are obviously increased, and additionally, a dipped irradiation area is prevented from generating a blind area.
Description
Technical field
The present invention relates to LED field, especially a kind of automobile LED headlamp.
Background technology
LED has the many merits such as energy-saving and environmental protection, life-span be long, and it has a extensive future, and therefore countries in the world have been dropped into a large amount of manpower and materials and carried out correlative study and industrialization.In recent years, along with the continuous breakthrough of great power LED technology, application constantly expanded, in a large number entering part illumination field.Automotive lighting is one of them main application fields, in 2003, just has the high-brightness LED of 15% for automotive lighting.But, current high-brightness LED is mainly used in automobile tail light and room light, is not commonly used to car headlamp, and this is mainly because headlamp optics design comparison is complicated, traditional method for designing light efficiency is lower, and before causing LED automobile, the lamp of photograph is difficult to the requirement meeting standard.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of automobile LED headlamp, and light efficiency is good, can realize the function of long-distance light and dipped beam, and can meet the requirement of relevant criterion.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of automobile LED headlamp, comprises back casing, front cover body and light source assembly; Described light source assembly comprises high-beam light source assembly and low beam light source assembly; The centre position in back casing is located at by described low beam light source assembly, described low beam light source assembly comprises lens and more than one dipped beam LED in dipped beam, in described dipped beam, lens base is provided with the projection of the strip that five be arranged in parallel, be positioned at middle intermediate projections respectively, be positioned at the first left projection on the left of intermediate projections and the second left projection, and the first right projection be positioned on the right side of intermediate projections and the second right projection; Described intermediate projections surface is in cambered surface, and its radius of curvature is 10 ~ 27mm, and the lighting angle of intermediate projections is-0.6 ° ~ 0.6 °; The wherein one side of described first left projection is cambered surface, and another side is vertical plane, and the radius of curvature of described cambered surface is 1 ~ 350mm, and the lighting angle of the first left projection is 0.9 ° ~ 1.0 °; The wherein one side of described second left projection is cambered surface, and another side is vertical plane, and the radius of curvature of described cambered surface is 3 ~ 85mm, and the lighting angle of the second left projection is 0.6 ° ~ 0.9 °; The wherein one side of described first right projection is cambered surface, and another side is vertical plane, and the radius of curvature of described cambered surface is 80 ~ 380mm, and the lighting angle of the first right projection is-2 ° ~-1 °; The wherein one side of described second right projection is cambered surface, and another side is vertical plane, and the radius of curvature of described cambered surface is 9 ~ 94mm, and the lighting angle of the second right projection is-1 ° ~-0.6 °.When headlamp needs to be adjusted to distance light, high-beam light source assembly is utilized to get distance light.When headlamp needs to be adjusted to dipped beam, low beam light source assembly is utilized to get dipped beam.All the time, it is fail to break through the standard-required of dipped headlights that LED is difficult to be applied in main cause in car headlamp, light of the present invention is by after lens in dipped beam, the dipped beam light type with obvious "cut-off"line can be obtained, effectively the light of wide-angle can be used, the utilization rate of luminous flux effectively improves, and makes the irradiation distance of light, width obviously increases, prevent dipped beam irradiation area from occurring blind area simultaneously.
As improvement, in described dipped beam LED distance dipped beam, the distance of lens end face is 39 ~ 40mm.
As improvement, described low beam light source assembly also comprises the light barrier being located at lens both sides in described dipped beam.
As improvement, described high-beam light source assembly comprises some distance light luminescence units being distributed in described low beam light source assembly periphery; Described distance light luminescence unit comprises reflector and distance light LED, and the lighting angle of described reflector is 0 ~ 5 °.
As improvement, be provided with mounting disc in described back casing, described reflector and described mounting disc are integrated; The accommodation space for placing high-beam light source assembly is provided with in the middle of described mounting disc.
As improvement, in described back casing, centre position is mount pad, and the end face of described mount pad is provided with the installing plate of annular, and in described dipped beam, lens are fixed on described installing plate bottom surface.
As improvement, described installing plate end face is provided with and somely shows wide LED and Circular shape lampshade, described in show that the light of wide LED carries out luminous intensity distribution by Circular shape lampshade.Headlamp of the present invention, except having the function of high beam, dipped headlights, also possesses the function of side-marker lamp simultaneously.By showing that wide LED and Circular shape lampshade coordinate, enable headlamp send common can as showing wide light.
As improvement, in depression in the middle of described back casing inner bottom surface, described depression surrounding is mounting platform, and described light source assembly also comprises annular distance light LED-baseplate and dipped beam LED-baseplate, and described distance light LED-baseplate is located on described mounting platform; Described dipped beam LED-baseplate and dipped beam LED are located in described depression.
As improvement, because in dipped beam, lens are elongated, in order to coordinate the structure of lens in dipped beam, described dipped beam LED is in one line along protrusion direction, makes the light of dipped beam LED can be radiated in dipped beam on lens uniformly.
As improvement, centre position, described back casing rear portion is provided with the first groups of fins and the second groups of fins around the first groups of fins distribution, described first groups of fins is made up of some first fin, and described first fin is V-shaped, can increase its area of dissipation.
The beneficial effect that the present invention is compared with prior art brought is:
Light of the present invention is by after lens in dipped beam, the dipped beam light type with obvious "cut-off"line can be obtained, effectively the light of wide-angle can be used, the utilization rate of luminous flux effectively improves, make the irradiation distance of light, width obviously increases, prevent dipped beam irradiation area from occurring blind area simultaneously.
Accompanying drawing explanation
Fig. 1 is headlamp external structure schematic diagram.
Fig. 2 is headlamp internal structure schematic diagram.
Fig. 3 is back casing internal structure schematic diagram.
Fig. 4 is mounting disc structural representation.
Fig. 5 is mount pad structural representation.
Fig. 6 is back casing structure schematic diagram.
Fig. 7 is lens-section schematic diagram in dipped beam.
Fig. 8 is that dipped beam LED coordinates structural representation with lens in dipped beam.
Detailed description of the invention
Below in conjunction with Figure of description, the invention will be further described.
As shown in Figure 1, a kind of automobile LED headlamp, comprises back casing 2, front cover body 1 and light source assembly; Described transparent front cover body 1 coordinates with the back casing 2 of aluminium alloy, and described light source assembly is located in described back casing 2.
As shown in Fig. 3,6, in depression 9 in the middle of described back casing 2 inner bottom surface, described depression 9 surrounding is mounting platform 9; The second groups of fins 19 that centre position, described back casing 2 rear portion is provided with the first groups of fins 20 and distributes around the first groups of fins 20, described first groups of fins 20 is made up of some first fin 21, described first fin 21 is V-shaped, can increase its area of dissipation.Described back casing 2 back side is provided with fairlead 10, and to lead directly to described back casing 2 inner, and holding wire 3 to be stretched in back casing 2 by described fairlead 10 and is connected with light source assembly.
As shown in Fig. 5,7, described light source assembly comprises high-beam light source assembly and low beam light source assembly; The centre position in back casing 2 is located at by described low beam light source assembly, and described low beam light source assembly comprises lens 5 in dipped beam LED-baseplate 22, dipped beam, light barrier 7 and more than one dipped beam LED 23.Described dipped beam LED 23 substrate 22 is located in described depression 9, mount pad 17 is provided with above described depression 9, the end face of described mount pad 17 is provided with the installing plate 18 of annular, in described dipped beam, lens 5 are rectangle, its four angles are respectively equipped with mounting ear, four mounting ears that in dipped beam, lens 5 are saturating are fixed by screws in the bottom surface of installing plate 18, thus lens 5 in fixing dipped beam.In described dipped beam, lens 5 end face is roughly in plane, bottom surface is provided with the projection of the strip that five be arranged in parallel, be positioned at middle intermediate projections 51 respectively, be positioned at first on the left of intermediate projections 51 left protruding 52 and second left protruding 53, and be positioned at first on the right side of intermediate projections 51 right protruding 54 and second right protruding 55; Described intermediate projections 51 surface is in cambered surface, and its radius of curvature is 10 ~ 27mm, and the lighting angle of intermediate projections 51 is-0.6 ° ~ 0.6 °; Described first left protruding 52 roughly triangular in shape, wherein one side is cambered surface 521, and another side is vertical plane, and outwardly, the radius of curvature of described cambered surface 521 is 1 ~ 350mm to cambered surface 521, and the first left lighting angle of protruding 52 is 0.9 ° ~ 1.0 °; Described second left protruding 53 roughly triangular in shape, wherein one side is cambered surface 531, and another side is vertical plane, and outwardly, the radius of curvature of described cambered surface 531 is 3 ~ 85mm to cambered surface 531, and the second left lighting angle of protruding 53 is 0.6 ° ~ 0.9 °; Described first right protruding 54 roughly triangular in shape, wherein one side is cambered surface 541, and another side is vertical plane, and outwardly, the radius of curvature of described cambered surface 541 is 80 ~ 380mm to cambered surface 541, and the first right lighting angle of protruding 54 is-2 ° ~-1 °; Described second right protruding 55 roughly triangular in shape, wherein one side is cambered surface 551, and another side is vertical plane, and outwardly, the radius of curvature of described cambered surface 551 is 9 ~ 94mm to cambered surface 551, and the second right lighting angle of protruding 55 is-1 ° ~-0.6.As shown in Figure 8, described dipped beam LED 23 is located on described dipped beam LED 23 substrate 22, in order to coordinate the structure of lens 5 in dipped beam, described dipped beam LED 23 is in one line along protrusion direction, and described dipped beam LED 23 is 39mm apart from the distance of lens in dipped beam 5 end face, make the light of dipped beam LED 23 can be radiated in dipped beam on lens 5 uniformly.Described light barrier 7 is positioned at the both sides in the wide direction of described dipped beam lens 5, and two pieces of light barriers 7 are arranged in splayed.
As shown in Figure 2, described installing plate 18 end face be provided with some circumferentially distribute show wide LED 15 and Circular shape lampshade 6, described in show that the light of wide LED 15 carries out luminous intensity distribution by Circular shape lampshade 6.
As shown in Figure 2, described high-beam light source assembly comprises some distance light luminescence units 4 being distributed in described low beam light source assembly periphery, described distance light luminescence unit 4 comprises distance light LED-baseplate 24, reflector 14 and distance light LED 15, ringwise, it is located on the mounting platform 9 in described back casing 2 described distance light LED 15 substrate 24; Described reflector 14 has several different reflective surface to form, and has 0 ° of reflective surface, 2 ° of reflective surfaces and 5 ° of reflective surfaces, and make reflector 14 lighting angle be 0 ~ 5 °, light reflects the object reaching distance light by reflector 14.As shown in Figure 4, be provided with mounting disc 25 in described back casing 2, described reflector 14 is integrated with described mounting disc 25; The accommodation space 11 for placing high-beam light source assembly is provided with in the middle of described mounting disc 25; The centre of mounting disc 25 is provided with ring-type projection 13, being described accommodation space 11, being provided with inclined-plane 12, for installing described light barrier 7 in the symmetrical both sides of ring-type projection 13 in the middle of ring-type projection 13.
When headlamp needs to be adjusted to distance light, high-beam light source assembly is utilized to get distance light.When headlamp needs to be adjusted to dipped beam, low beam light source assembly is utilized to get dipped beam.All the time, it is fail to break through the standard-required of dipped headlights that LED is difficult to be applied in main cause in car headlamp, light of the present invention is by after lens 5 in dipped beam, the dipped beam light type with obvious "cut-off"line can be obtained, effectively the light of wide-angle can be used, the utilization rate of luminous flux effectively improves, the light efficiency of its dipped headlights is 70 lm/W, the light efficiency of high beam is 80 lm/W, thus make the irradiation distance of light, width obviously increases, and prevents dipped beam irradiation area from occurring blind area simultaneously.
Claims (10)
1. an automobile LED headlamp, comprises back casing, front cover body and light source assembly; It is characterized in that: described light source assembly comprises high-beam light source assembly and low beam light source assembly; The centre position in back casing is located at by described low beam light source assembly, described low beam light source assembly comprises lens and more than one dipped beam LED in dipped beam, in described dipped beam, lens base is provided with the projection of the strip that five be arranged in parallel, be positioned at middle intermediate projections respectively, be positioned at the first left projection on the left of intermediate projections and the second left projection, and the first right projection be positioned on the right side of intermediate projections and the second right projection; Described intermediate projections surface is in cambered surface, and its radius of curvature is 10 ~ 27mm, and the lighting angle of intermediate projections is-0.6 ° ~ 0.6 °; The wherein one side of described first left projection is cambered surface, and another side is vertical plane, and the radius of curvature of described cambered surface is 1 ~ 350mm, and the lighting angle of the first left projection is 0.9 ° ~ 1.0 °; The wherein one side of described second left projection is cambered surface, and another side is vertical plane, and the radius of curvature of described cambered surface is 3 ~ 85mm, and the lighting angle of the second left projection is 0.6 ° ~ 0.9 °; The wherein one side of described first right projection is cambered surface, and another side is vertical plane, and the radius of curvature of described cambered surface is 80 ~ 380mm, and the lighting angle of the first right projection is-2 ° ~-1 °; The wherein one side of described second right projection is cambered surface, and another side is vertical plane, and the radius of curvature of described cambered surface is 9 ~ 94mm, and the lighting angle of the second right projection is-1 ° ~-0.6 °.
2. a kind of automobile LED headlamp according to claim 1, is characterized in that: in described dipped beam LED distance dipped beam, the distance of lens end face is 39 ~ 40mm.
3. a kind of automobile LED headlamp according to claim 1, is characterized in that: described low beam light source assembly also comprises the light barrier being located at lens both sides in described dipped beam.
4. a kind of automobile LED headlamp according to claim 1, is characterized in that: described high-beam light source assembly comprises some distance light luminescence units being distributed in described low beam light source assembly periphery; Described distance light luminescence unit comprises reflector and distance light LED, and the lighting angle of described reflector is 0 ~ 5 °.
5. a kind of automobile LED headlamp according to claim 4, is characterized in that: be provided with mounting disc in described back casing, described reflector and described mounting disc are integrated; The accommodation space for placing high-beam light source assembly is provided with in the middle of described mounting disc.
6. a kind of automobile LED headlamp according to claim 1, is characterized in that; In described back casing, centre position is mount pad, and the end face of described mount pad is provided with the installing plate of annular, and in described dipped beam, lens are fixed on described installing plate bottom surface.
7. a kind of automobile LED headlamp according to claim 6, is characterized in that: described installing plate end face is provided with and somely shows wide LED and Circular shape lampshade, described in show that the light of wide LED carries out luminous intensity distribution by Circular shape lampshade.
8. a kind of automobile LED headlamp according to claim 1, it is characterized in that: in depression in the middle of described back casing inner bottom surface, described depression surrounding is mounting platform, described light source assembly also comprises annular distance light LED-baseplate and dipped beam LED-baseplate, and described distance light LED-baseplate is located on described mounting platform; Described dipped beam LED-baseplate and dipped beam LED are located in described depression.
9. a kind of automobile LED headlamp according to claim 1, is characterized in that: described dipped beam LED is in one line along protrusion direction.
10. a kind of automobile LED headlamp according to claim 1, it is characterized in that: centre position, described back casing rear portion is provided with the first groups of fins and the second groups of fins around the first groups of fins distribution, described first groups of fins is made up of some first fin, and described first fin is V-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210522357.7A CN103017058B (en) | 2012-12-07 | 2012-12-07 | LED (Light Emitting Diode) headlamp of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210522357.7A CN103017058B (en) | 2012-12-07 | 2012-12-07 | LED (Light Emitting Diode) headlamp of automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103017058A CN103017058A (en) | 2013-04-03 |
| CN103017058B true CN103017058B (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210522357.7A Active CN103017058B (en) | 2012-12-07 | 2012-12-07 | LED (Light Emitting Diode) headlamp of automobile |
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| CN (1) | CN103017058B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421807A (en) * | 2013-08-22 | 2015-03-18 | 江苏卡威汽车工业集团有限公司 | Automotive light-emitting diode (LED) headlamp |
| CN104421788A (en) * | 2013-08-27 | 2015-03-18 | 鸿富锦精密工业（深圳）有限公司 | Automobile lamp module |
| CN106907649B (en) * | 2017-04-14 | 2023-04-07 | 广东泰耀汽车科技有限公司 | LED automobile headlamp |
| CN108224354B (en) * | 2017-11-28 | 2024-12-17 | 江苏语诣光电科技有限公司 | Multifunctional light path irradiation system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1055869A2 (en) * | 1999-05-28 | 2000-11-29 | Corning Incorporated | Glass lens for automotive lighting |
| CN101196278A (en) * | 2006-10-24 | 2008-06-11 | 瓦莱奥.西尔瓦尼亚有限责任公司 | High efficiency automotive LED optical system |
| CN202229044U (en) * | 2011-09-29 | 2012-05-23 | 四川新力光源有限公司 | Motorcycle front headlight |
| CN102650398A (en) * | 2011-02-24 | 2012-08-29 | 株式会社小糸制作所 | Vehicle lamp |
| CN203215504U (en) * | 2012-12-07 | 2013-09-25 | 广州市佛达信号设备有限公司 | LED headlamp of automobile |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3223707B2 (en) * | 1994-07-15 | 2001-10-29 | 市光工業株式会社 | Auxiliary headlights for vehicles |
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2012
- 2012-12-07 CN CN201210522357.7A patent/CN103017058B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1055869A2 (en) * | 1999-05-28 | 2000-11-29 | Corning Incorporated | Glass lens for automotive lighting |
| CN101196278A (en) * | 2006-10-24 | 2008-06-11 | 瓦莱奥.西尔瓦尼亚有限责任公司 | High efficiency automotive LED optical system |
| CN102650398A (en) * | 2011-02-24 | 2012-08-29 | 株式会社小糸制作所 | Vehicle lamp |
| CN202229044U (en) * | 2011-09-29 | 2012-05-23 | 四川新力光源有限公司 | Motorcycle front headlight |
| CN203215504U (en) * | 2012-12-07 | 2013-09-25 | 广州市佛达信号设备有限公司 | LED headlamp of automobile |
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| CN103017058A (en) | 2013-04-03 |
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