CN103017058A - LED (Light Emitting Diode) headlamp of automobile - Google Patents
LED (Light Emitting Diode) headlamp of automobile Download PDFInfo
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- CN103017058A CN103017058A CN2012105223577A CN201210522357A CN103017058A CN 103017058 A CN103017058 A CN 103017058A CN 2012105223577 A CN2012105223577 A CN 2012105223577A CN 201210522357 A CN201210522357 A CN 201210522357A CN 103017058 A CN103017058 A CN 103017058A
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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 the 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 are long, and it has a extensive future, so 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 enlarged, in a large number entering part illumination field.Automotive lighting is one of them main application fields, in 2003, just has 15% high-brightness LED to be used for automotive lighting.Yet, high-brightness LED is mainly used in automobile tail light and room light at present, generally is not used for car headlamp, and this mainly is because headlamp optics design comparison is complicated, traditional method for designing light efficiency is lower, causes the lamp of LED vehicle front lighting to be difficult to satisfy the requirement of standard.
Summary of the invention
Technical problem to be solved by this invention provides a kind of automobile LED headlamp, and light efficiency is good, can realize the function of long-distance light and dipped beam, and can satisfy 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 distance light light source assembly and dipped beam light source assembly; Described dipped beam light source assembly is located at the centre position in the back casing, described dipped beam light source assembly comprises lens and more than one dipped beam LED in the dipped beam, the lens bottom surface is provided with the projection of five strips that be arranged in parallel in the described dipped beam, it is respectively the intermediate projections in the middle of being positioned at, be positioned at the first left projection and the second left projection in intermediate projections left side, and the first right projection and the second right projection that are positioned at the intermediate projections right side; Described intermediate projections surface is 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 the 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 the 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 the 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 the 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 need to be adjusted into distance light, utilize the distance light light source assembly to get distance light and get final product.When headlamp need to be adjusted into dipped beam, utilize the dipped beam light source assembly to get dipped beam and get final product.All the time, LED is difficult to be applied in that main cause is to fail to break through the standard-required of dipped headlights in the car headlamp, after light of the present invention passes through the interior lens of dipped beam, can obtain having the dipped beam light type of obvious "cut-off"line, can be effectively the light of wide-angle be used, the utilization rate of luminous flux effectively improves, and the irradiation distance of light, width are obviously increased, and prevents that simultaneously the blind area from appearring in the dipped beam irradiation area.
As improvement, described dipped beam LED is 39 ~ 40mm apart from the distance of lens end face in the dipped beam.
As improvement, described dipped beam light source assembly also comprises the light barrier of being located at lens both sides in the described dipped beam.
As improvement, described distance light light source assembly comprises some distance light luminescence units that are distributed in described dipped 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 the described back casing, described reflector and described mounting disc are integrated; Be provided with for the accommodation space of placing the distance light light source assembly in the middle of the described mounting disc.
As improvement, the centre position is mount pad in the described back casing, and the end face of described mount pad is provided with the installing plate of annular, and lens are fixed on described installing plate bottom surface in the described dipped beam.
As improvement, described installing plate end face is provided with some wide LED and Circular shape lampshades of showing, the described light of wide LED that shows carries out luminous intensity distribution by Circular shape lampshade.Headlamp of the present invention also possesses the function of side-marker lamp simultaneously except the function with high beam, dipped headlights.By showing that wide LED and Circular shape lampshade cooperate, make headlamp can send common can be as the light that shows wide usefulness.
As improvement, be depression in the middle of the described back casing inner bottom surface, be mounting platform around the described depression, described light source assembly also comprises annular distance light LED substrate and dipped beam LED substrate, described distance light LED substrate is located on the described mounting platform; Described dipped beam LED substrate and dipped beam LED are located in the described depression.
As improvement, because lens are elongated in the dipped beam, in order to cooperate the structure of lens in the dipped beam, described dipped beam LED is in one line along protrusion direction, and the light of dipped beam LED can be radiated on the interior lens of dipped beam uniformly.
As improvement, the second groups of fins that centre position, described back casing rear portion is provided with the first groups of fins and distributes around the first groups of fins, described the first groups of fins is comprised of some the first fin, and described the first fin is V-shaped, can increase its area of dissipation.
The beneficial effect that the present invention compared with prior art brings is:
After light of the present invention passes through the interior lens of dipped beam, can obtain having the dipped beam light type of obvious "cut-off"line, can be effectively the light of wide-angle be used, the utilization rate of luminous flux effectively improves, irradiation distance, the width of light are obviously increased, prevent that simultaneously the blind area from appearring in the dipped beam irradiation area.
Description of drawings
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 the mounting disc structural representation.
Fig. 5 is the mount pad structural representation.
Fig. 6 is back casing structure schematic diagram.
Fig. 7 is lens schematic cross-section in the dipped beam.
Fig. 8 is that dipped beam LED cooperates structural representation with the interior lens of dipped beam.
The specific embodiment
The invention will be further described below in conjunction with Figure of description.
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 cooperates with the back casing 2 of aluminium alloy, and described light source assembly is located in the described back casing 2.
Shown in Fig. 3,6, be depression 9 in the middle of described back casing 2 inner bottom surfaces, be mounting platform 9 around the described depression 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 the first groups of fins 20 is comprised of some the first fin 21, described the first fin 21 is V-shaped, can increase its area of dissipation.Described back casing 2 back sides are provided with fairlead 10 straight-through described back casing 2 inside, and holding wire 3 stretches in the back casing 2 and with light source assembly by described fairlead 10 and is connected.
Shown in Fig. 5,7, described light source assembly comprises distance light light source assembly and dipped beam light source assembly; Described dipped beam light source assembly is located at the centre position in the back casing 2, and described dipped beam light source assembly comprises lens 5, light barrier 7 and more than one dipped beam LED 23 in dipped beam LED substrate 22, the dipped beam.Described dipped beam LED 23 substrates 22 are located in the described depression 9, described depression 9 tops are provided with mount pad 17, the end face of described mount pad 17 is provided with the installing plate 18 of annular, lens 5 are rectangle in the described dipped beam, its four angles are respectively equipped with mounting ear, lens 5 four saturating mounting ears are fixed by screws in the bottom surface of installing plate 18 in the dipped beam, thus fixing interior lens 5 of dipped beam.Lens 5 end faces roughly are the plane in the described dipped beam, the bottom surface is provided with the projection of five strips that be arranged in parallel, it is respectively the intermediate projections 51 in the middle of being positioned at, be positioned at the first left protruding 52 and second left protruding 53 of intermediate projections 51 left sides, and be positioned at first right protruding 54 and second right protruding 55 of intermediate projections 51 right sides; Described intermediate projections 51 surfaces are 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 is roughly triangular in shape, wherein the one side be cambered surface 521, another side is vertical plane, cambered surface 521 outwardly, the radius of curvature of described cambered surface 521 is 1 ~ 350mm, the first left lighting angle of protruding 52 is 0.9 ° ~ 1.0 °; Described second left protruding 53 is roughly triangular in shape, wherein the one side be cambered surface 531, another side is vertical plane, cambered surface 531 outwardly, the radius of curvature of described cambered surface 531 is 3 ~ 85mm, the second left lighting angle of protruding 53 is 0.6 ° ~ 0.9 °; Described first right protruding 54 is roughly triangular in shape, wherein the one side be cambered surface 541, another side is vertical plane, cambered surface 541 outwardly, the radius of curvature of described cambered surface 541 is 80 ~ 380mm, the first right lighting angle of protruding 54 is-2 ° ~-1 °; Described second right protruding 55 is roughly triangular in shape, wherein the one side be cambered surface 551, another side is vertical plane, cambered surface 551 outwardly, the radius of curvature of described cambered surface 551 is 9 ~ 94mm, 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 substrates 22, in order to cooperate the structure of lens 5 in the 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 5 end faces of lens in the dipped beam, and the light of dipped beam LED 23 can be radiated on the interior lens 5 of dipped beam uniformly.Described light barrier 7 is positioned at the both sides of the wide direction of described dipped beam lens 5, and two light barriers 7 are splayed and arrange.
As shown in Figure 2, described installing plate 18 end faces are provided with some wide LED 15 of showing of circle distribution and Circular shape lampshades 6 of being, and the described light of wide LED 15 that shows carries out luminous intensity distribution by Circular shape lampshade 6.
As shown in Figure 2, described distance light light source assembly comprises some distance light luminescence units 4 that are distributed in described dipped beam light source assembly periphery, described distance light luminescence unit 4 comprises distance light LED substrate 24, reflector 14 and distance light LED 15, described distance light LED 15 substrates 24 ringwise, it is located on the mounting platform 9 in the described back casing 2; Described reflector 14 has several different reflective surfaces to consist of, and 0 ° of reflective surface, 2 ° of reflective surfaces and 5 ° of reflective surfaces are arranged, and making reflector 14 lighting angles is 0 ~ 5 °, and light reflects the purpose that reaches distance light by reflector 14.As shown in Figure 4, be provided with mounting disc 25 in the described back casing 2, described reflector 14 is integrated with described mounting disc 25; Be provided with for the accommodation space 11 of placing the distance light light source assembly in the middle of the described mounting disc 25; The centre of mounting disc 25 is provided with ring-type projection 13, is described accommodation space 11 in the middle of the ring-type projection 13, is provided with inclined-plane 12 in the symmetrical both sides of ring-type projection 13, is used for installing described light barrier 7.
When headlamp need to be adjusted into distance light, utilize the distance light light source assembly to get distance light and get final product.When headlamp need to be adjusted into dipped beam, utilize the dipped beam light source assembly to get dipped beam and get final product.All the time, LED is difficult to be applied in that main cause is to fail to break through the standard-required of dipped headlights in the car headlamp, after light of the present invention passes through the interior lens 5 of dipped beam, can obtain having the dipped beam light type of obvious "cut-off"line, can be effectively the light of wide-angle 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, thereby the irradiation distance of light, width are obviously increased, prevent that simultaneously the blind area from appearring in the dipped beam irradiation area.
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 distance light light source assembly and dipped beam light source assembly; Described dipped beam light source assembly is located at the centre position in the back casing, described dipped beam light source assembly comprises lens and more than one dipped beam LED in the dipped beam, the lens bottom surface is provided with the projection of five strips that be arranged in parallel in the described dipped beam, it is respectively the intermediate projections in the middle of being positioned at, be positioned at the first left projection and the second left projection in intermediate projections left side, and the first right projection and the second right projection that are positioned at the intermediate projections right side; Described intermediate projections surface is 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 the 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 the 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 the 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 the 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, it is characterized in that: described dipped beam LED is 39 ~ 40mm apart from the distance of lens end face in the dipped beam.
3. a kind of automobile LED headlamp according to claim 1 is characterized in that: described dipped beam light source assembly also comprises the light barrier of being located at lens both sides in the described dipped beam.
4. a kind of automobile LED headlamp according to claim 1, it is characterized in that: described distance light light source assembly comprises some distance light luminescence units that are distributed in described dipped 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 1, it is characterized in that: be provided with mounting disc in the described back casing, described reflector and described mounting disc are integrated; Be provided with for the accommodation space of placing the distance light light source assembly in the middle of the described mounting disc.
6. a kind of automobile LED headlamp according to claim 1 is characterized in that; The centre position is mount pad in the described back casing, and the end face of described mount pad is provided with the installing plate of annular, and lens are fixed on described installing plate bottom surface in the described dipped beam.
7. a kind of automobile LED headlamp according to claim 6, it is characterized in that: described installing plate end face is provided with some wide LED and Circular shape lampshades of showing, and the described light of wide LED that shows 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: be depression in the middle of the described back casing inner bottom surface, be mounting platform around the described depression, described light source assembly also comprises annular distance light LED substrate and dipped beam LED substrate, and described distance light LED substrate is located on the described mounting platform; Described dipped beam LED substrate and dipped beam LED are located in the described depression.
9. a kind of automobile LED headlamp according to claim 1, it 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: the second groups of fins that centre position, described back casing rear portion is provided with the first groups of fins and distributes around the first groups of fins, described the first groups of fins is comprised of some the first fin, and described the 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 |
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| CN103017058A true CN103017058A (en) | 2013-04-03 |
| CN103017058B CN103017058B (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210522357.7A Active CN103017058B (en) | 2012-12-07 | 2012-12-07 | LED (Light Emitting Diode) headlamp of automobile |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421788A (en) * | 2013-08-27 | 2015-03-18 | 鸿富锦精密工业（深圳）有限公司 | Automobile lamp module |
| 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 |
| CN106907649A (en) * | 2017-04-14 | 2017-06-30 | 广东威捷极光汽车灯具有限公司 | Automotive LED headlamp |
| CN108224354A (en) * | 2017-11-28 | 2018-06-29 | 江苏语诣光电科技有限公司 | A kind of multi-functional light path irradiation system |
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| JPH0831203A (en) * | 1994-07-15 | 1996-02-02 | Ichikoh Ind Ltd | Vehicular auxiliary headlight |
| 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 |
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2012
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0831203A (en) * | 1994-07-15 | 1996-02-02 | Ichikoh Ind Ltd | Vehicular auxiliary headlight |
| 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 |
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Cited By (5)
| 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 |
| CN106907649A (en) * | 2017-04-14 | 2017-06-30 | 广东威捷极光汽车灯具有限公司 | Automotive LED headlamp |
| CN106907649B (en) * | 2017-04-14 | 2023-04-07 | 广东泰耀汽车科技有限公司 | LED automobile headlamp |
| CN108224354A (en) * | 2017-11-28 | 2018-06-29 | 江苏语诣光电科技有限公司 | A kind of multi-functional light path irradiation system |
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| CN103017058B (en) | 2015-07-01 |
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