CN203848148U - Automobile headlamp - Google Patents
Automobile headlamp Download PDFInfo
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- CN203848148U CN203848148U CN201420092618.0U CN201420092618U CN203848148U CN 203848148 U CN203848148 U CN 203848148U CN 201420092618 U CN201420092618 U CN 201420092618U CN 203848148 U CN203848148 U CN 203848148U
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- dipped beam
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Abstract
The utility model discloses an automobile headlamp and aims to provide the automobile headlamp which is simple in structure and manufacturing process, low in price, small in size, high in light energy utilization rate, low in energy consumption, long in service life and widely applicable to the field of automobile headlamps. The automobile headlamp comprises an aluminum heat sink (8), an aluminum substrate (1), a shading support (4), light distribution lenses (6) and LED light sources (2) disposed on the aluminum substrate (1), wherein the aluminum heat sink (8), the aluminum substrate (1), the shading support (4), the light distribution lenses (6) and the LED light sources (2) are sequentially disposed from bottom to top. The shading support (4) is connected with the aluminum substrate (1) through guide columns (3). The light distribution lenses (6) are disposed at the top of the shading support (4) and matched with the same. The aluminum heat sink (8), the aluminum substrate (1) and the shading support (4) are connected.
Description
Technical field
The utility model relates to a kind of car headlamp.
Background technology
Car headlamp is again headlight, is loaded on automobile head both sides, for the illumination of driving at night road, has dividing of two lamp systems and four lamp systems.Because the illuminating effect of headlamp directly affects operation and the traffic safety of driving at night, so countries in the world vehicle supervision department has stipulated its lighting criteria mainly with legal form.The headlamp of automobile generally has the types such as white heat, halogen, xenon, development along with automotive engineering, automobile headlamp also varies widely, and now the headlamp of automobile be take Halogen lamp LED, xenon lamp as main, past that removably from vehement bulb and incandescent vacuum headlamp all priority be eliminated.
Halogen lamp LED, in bulb, infiltrate exactly a small amount of indifferent gas iodine, the tungsten atom being evaporated from filament meets and reacts with iodine atom, generate tungsten iodide compound, when tungsten iodide compound one contact perfervid filament (temperature is over 1450 ℃), can decomposition-reduction be tungsten and iodine again, tungsten be rejoined one's unit again to get back in filament and is gone, and iodine reenters in gas.So endlessly, filament can blow hardly in circulation, and bulb can not turn black yet, so it is longer than traditional incandescent headlamp life-span, brightness is larger.What present automobile generally adopted is all this headlamp.Halogen lamp LED has its unique light distribution structure, has two groups of filaments in every light, and one group is main beam filament, and the light sending shoots forward straight after support speculum reflection, this light source be exactly we said " distance light " at ordinary times.Another kind is polarisation bundle filament, the light sending keeps off the first half of support reflective mirror to shadow shield, its light reflecting away be all diffusion down earthward, the driver that can not send a car to opposite causes and dazzles the eyes, this light source be exactly we usually said " dipped beam ".
Xenon lamp, is also HID gas discharge type head lamp.To substitute traditional tungsten filament with being wrapped in high-pressure xenon in quartz ampoule, the illumination of provide high color temperature more, more assembling, because xenon lamp is to adopt high-tension current to activate a branch of arclight that xenon forms, can be between two electrodes continuous discharge luminous.Xenon lamp can obviously alleviate the burden of vehicle electrical system, the colour temperature of automobile xenon lamp is between 4000K-6000K, far away higher than common car headlight bulb, its brightness is high, the photochromic of the xenon lamp of 4300K is that white is partially yellow, and because colour temperature is lower, visual effect is partially yellow, the penetration power of light is better than the lamp of high color temperature, can improve the travel safety of night and foggy weather.When driving at night is in the section that there is no light, road is narrow curved again, now, if your car light can be brighter, shines fartherly, and the security of driving a vehicle so must improve many, the head lamp of new generation that xenon lamp HID develops based on driving at night safety just.And this xenon lamp not only complex structure, cause manufacturing process complicated, and price comparison is expensive.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provides that a kind of structure and manufacturing process are simple, price comparison is low, volume is smaller, the efficiency of light energy utilization is high, energy consumption is lower, the car headlamp of long service life.
The technical scheme that the utility model adopts is: the utility model comprises aluminium radiator fin, aluminium base, shading support, the light-distribution lens setting gradually from top to bottom and is arranged on the LED light source on described aluminium base, described shading support is connected with described aluminium base by guide pillar, described light-distribution lens is arranged on described shading, and to prop up top of the trellis suitable with it, and described aluminium radiator fin, described aluminium base and described shading support link together.
Described LED light source comprises dipped beam LED light source and distance light LED light source, the main body of described shading support is LED support, described LED support comprises dipped beam LED support and distance light LED support, the bottom of described dipped beam LED support is provided with dipped beam shadow shield, described light-distribution lens comprises dipped beam light-distribution lens and distance light light-distribution lens, described dipped beam LED light source, described dipped beam LED support, described dipped beam shadow shield and described dipped beam light-distribution lens form dipped headlights group, and described distance light LED light source, described distance light LED support and described distance light light-distribution lens form high beam group.
The funnel type that described LED support is big up and small down.
The bottom of described dipped beam shadow shield is the focal length face of described dipped beam light-distribution lens, and between the bottom surface of described dipped beam shadow shield and the bottom surface of described dipped beam light-distribution lens, focal length value is 25-30mm.
Described dipped beam LED light source, described distance light LED light source are round LED lamp pearl, described dipped beam shadow shield is special sector structure, described dipped beam shadow shield partly covers described dipped beam LED light source, the limit, outer of described dipped beam shadow shield comprise that head and the tail end points intersects first along limit, bending prolongs limit and second along limit, described first is 170 °～178 ° along limit and described second along the angle between limit, and it is that distance between 0.3mm, short transverse is 0.25mm that distance between the end points length direction of two ends, limit is prolonged in described bending.
Described LED light source also comprises dipped beam auxiliary LED light source and distance light auxiliary LED light source, described LED support comprises dipped beam auxiliary LED support and distance light auxiliary LED support, described dipped beam auxiliary LED frame bottom is provided with dipped beam supplementary sun visor, described light-distribution lens comprises the auxiliary light-distribution lens of dipped beam and the auxiliary light-distribution lens of distance light, described dipped beam auxiliary LED light source, described dipped beam auxiliary LED support, the auxiliary light-distribution lens of described dipped beam supplementary sun visor and described dipped beam forms supplementary passing lamp group, described distance light auxiliary LED light source, the auxiliary light-distribution lens of described distance light auxiliary LED support and described distance light forms auxiliary driving lamp group.
Described dipped beam LED light source, described dipped beam auxiliary LED light source, described distance light auxiliary LED light source are the round LED lamp pearl of a 10W, the round LED lamp pearl that described distance light LED light source is three 3W.
The beneficial effects of the utility model are: because the utility model comprises the aluminium radiator fin setting gradually from top to bottom, aluminium base, shading support, light-distribution lens and be arranged on the LED light source on described aluminium base, described shading support is connected with described aluminium base by guide pillar, described light-distribution lens is arranged on described shading, and to prop up top of the trellis suitable with it, described aluminium radiator fin, described aluminium base and described shading support link together, the utility model adopts LED light source to replace existing Halogen lamp LED and xenon lamp, make the utility model have all advantages of LED light emitting diode concurrently, simultaneously, by described aluminium base, described shading support and described light-distribution lens carry out can completing general assembly after the firm connection of bolt, so the utility model structure and manufacturing process are simple, price comparison is low, volume is smaller, the efficiency of light energy utilization is high, energy consumption is lower, long service life.
The bottom of described dipped beam shadow shield is the focal length face of described dipped beam light-distribution lens, described dipped beam LED light source, described distance light LED light source is round LED lamp pearl, described dipped beam shadow shield is special sector structure, described dipped beam shadow shield partly covers described dipped beam LED light source, the limit, outer of described dipped beam shadow shield comprise that the first end points intersects first along limit, bending is prolonged limit and second along limit, described first is 170 °～178 ° along limit and described second along the angle between limit, the light that described dipped beam LED light source sends through described dipped beam shadow shield block and after the refraction of described dipped beam light-distribution lens, form the yi word pattern "cut-off"line light district without obvious dispersion, alleviated the difficulty of optical designers design "cut-off"line, make exploitation and the popularization of LED automobile front become more simple.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model;
Fig. 2 is top view of the present utility model;
Fig. 3 is explosive view of the present utility model;
Fig. 4 is the structural representation of the utility model high beam group;
Fig. 5 is the utility model dipped headlights group structural representation;
Fig. 6 is the top view of the utility model dipped headlights group;
Fig. 7 is the structural representation of the utility model dipped beam shadow shield.
The specific embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Fig. 7, the utility model comprises aluminium base 1, be arranged on the aluminium radiator fin 8 of described aluminium base 1 bottom, be arranged on the LED light source 2 on described aluminium base 1, by guide pillar 3 and the shading support 4 being connected with described aluminium base 1, be arranged on described shading support 4 and be positioned at the LED support 5 of described LED light source 2 tops and the light-distribution lens 6 that is arranged on described shading support 4 tops, the big up and small down funnel type of described LED support 5, described aluminium radiator fin 8, together with described aluminium base 1 is bolted with described guide pillar 3.
Car headlamp adopts LED luminous intensity distribution, need altogether to realize automobile to the LED of few two modules far away, the function of dipped beam, therefore, described LED light source 2 comprises dipped beam LED light source 21 and distance light LED light source 22, the round LED lamp pearl that described dipped beam LED light source 21 is a 10W, the round LED lamp pearl that described distance light LED light source 22 is three 3W, described LED support 5 comprises dipped beam LED support 51 and distance light LED support 52, the bottom of described dipped beam LED support 51 is provided with dipped beam shadow shield 71, described light-distribution lens 6 comprises dipped beam light-distribution lens 61 and distance light light-distribution lens 62, described dipped beam light-distribution lens 61 is rotating sphere, described distance light light-distribution lens 62 forms by the curved surface of four different curvature, the curved surface of four different curvature is non-rotating aspheric surface, described dipped beam LED light source 21, described dipped beam LED support 51, described dipped beam shadow shield 71 and described dipped beam light-distribution lens 61 form dipped headlights group, described distance light LED light source 22, described distance light LED support 52 and described distance light light-distribution lens 62 form high beam group.The focal length face that is respectively described dipped beam light-distribution lens 61 of described dipped beam shadow shield 71, focus value between the bottom surface of the bottom surface of described dipped beam shadow shield 71 and described dipped beam light-distribution lens 61 is 25-30mm, described dipped beam shadow shield 71 is special sector structure, described dipped beam shadow shield 71 half covers described dipped beam LED light source 21, the limit, outer of described dipped beam shadow shield 71 comprise that the first end points intersects first along limit 710, bending is prolonged limit 711 and second along limit 712, described first is 170 °～178 ° along limit 710 and described second along the angle between limit 712, preferably adopt symmetrical 87 °, the distance that described bending is prolonged between the 711 two ends end points length directions of limit is 0.3mm, distance between short transverse is 0.25mm.
In addition, in order to guarantee the brightest brightness value that requires in headlamp formation standard, described LED light source 2 also comprises dipped beam auxiliary LED light source 23 and distance light auxiliary LED light source 24, described dipped beam auxiliary LED light source 23, described distance light auxiliary LED light source 24 is the round LED lamp pearl of a 10W, described LED support 5 comprises dipped beam auxiliary LED support 53 and distance light auxiliary LED support 54, the bottom of described dipped beam auxiliary LED support 53 is provided with dipped beam supplementary sun visor, described light-distribution lens 6 comprises the auxiliary light-distribution lens 63 of dipped beam and the auxiliary light-distribution lens 64 of distance light, described dipped beam auxiliary LED light source 23, described dipped beam auxiliary LED support 53, the auxiliary light-distribution lens 63 of described dipped beam supplementary sun visor and described dipped beam forms dipped headlights group, described distance light auxiliary LED light source 24, described distance light auxiliary LED support 54, the auxiliary light-distribution lens 64 of described distance light forms high beam group.
Design concept of the present utility model is: because adopt LED light source, be circular, in the standard of dipped beam, there is "cut-off"line, need to become horizontal linear, and the LED of this circle has certain difficulty to the "cut-off"line formation straight line of dipped beam, now can calculate by luminous spherical diameter and not be that the straight line of level reaches standard-required, the angle of line is better between 85～89 degree, by the angle shape of the line that calculates, can form the shape of described dipped beam shadow shield 71 exactly, with the bottom of described dipped beam shadow shield 71, do the focal length face of lens, the optimum value of focal length value f is between 25～30mm, now light efficiency utilization is the highest.Resetting focal length is 30, and the light emitting anger of LED is 120 °, be according to the refraction principle of light, and the refractive index difference through different media, first get the raw material that PMMA is lens, and the refractive index of PMMA is 1.482～1.52, now gets refractive index n=1.5.According to the incident formula of light and outgoing formula, calculate the curve of light-distribution lens, when being the lens of optically focused, just take the center of calculating optical axis is rotating shaft, curve is profile limit, makes collector lens.When being the lens of diffused light, now according to the angle of standard-required, it is that the center of circle is rotated needed angle that each emergent ray of the angle of emergence is put to a upper point.
sini1=?sini?/n
ctga=sin?i1/cos?i1-1/n
F is the focal length of lens;
I is the incidence angle of light;
I1 is that light passes through the beam angle after medium;
A is bright dipping plane included angle-90 degree;
N is the refractive index of medium light.
Claims (7)
1. a car headlamp, it is characterized in that: described car headlamp comprises aluminium radiator fin (8), aluminium base (1), shading support (4), the light-distribution lens (6) setting gradually from top to bottom and is arranged on the LED light source (2) on described aluminium base (1), described shading support (4) is connected with described aluminium base (1) by guide pillar (3), it is suitable with it that described light-distribution lens (6) is arranged on described shading support (4) top, and described aluminium radiator fin (8), described aluminium base (1) link together with described shading support (4).
2. car headlamp according to claim 1, it is characterized in that: described LED light source (2) comprises dipped beam LED light source (21) and distance light LED light source (22), the main body of described shading support (4) is LED support (5), described LED support (5) comprises dipped beam LED support (51) and distance light LED support (52), the bottom of described dipped beam LED support (51) is provided with dipped beam shadow shield (71), described light-distribution lens (6) comprises dipped beam light-distribution lens (61) and distance light light-distribution lens (62), described dipped beam LED light source (21), described dipped beam LED support (51), described dipped beam shadow shield (71) and described dipped beam light-distribution lens (61) form dipped headlights group, described distance light LED light source (22), described distance light LED support (52) and described distance light light-distribution lens (62) form high beam group.
3. car headlamp according to claim 2, is characterized in that: the big up and small down funnel type of described LED support (5).
4. car headlamp according to claim 2, it is characterized in that: the bottom of described dipped beam shadow shield (71) is the focal length face of described dipped beam light-distribution lens (61), between the bottom surface of described dipped beam shadow shield (71) and the bottom surface of described dipped beam light-distribution lens (61), focal length value is 25-30mm.
5. car headlamp according to claim 2, it is characterized in that: described dipped beam LED light source (21), described distance light LED light source (22) is round LED lamp pearl, described dipped beam shadow shield (71) is special sector structure, described dipped beam shadow shield (71) partly covers described dipped beam LED light source (21), the limit, outer of described dipped beam shadow shield (71) comprise that head and the tail end points intersects first along limit (710), bending is prolonged limit (711) and second along limit (712), described first is 170 °～178 ° along limit (710) and described second along the angle between limit (712), the distance that described bending is prolonged between the end points length direction of two ends, limit (711) is 0.3mm, distance between short transverse is 0.25mm.
6. car headlamp according to claim 2, it is characterized in that: described LED light source (2) also comprises dipped beam auxiliary LED light source (23) and distance light auxiliary LED light source (24), described LED support (5) comprises dipped beam auxiliary LED support (53) and distance light auxiliary LED support (54), described dipped beam auxiliary LED support (53) bottom is provided with dipped beam supplementary sun visor, described light-distribution lens (6) comprises that dipped beam assists the auxiliary light-distribution lens (64) of light-distribution lens (63) and distance light, described dipped beam auxiliary LED light source (23), described dipped beam auxiliary LED support (53), the auxiliary light-distribution lens (63) of described dipped beam supplementary sun visor and described dipped beam forms supplementary passing lamp group, described distance light auxiliary LED light source (24), the auxiliary light-distribution lens (64) of described distance light auxiliary LED support (54) and described distance light forms auxiliary driving lamp group.
7. car headlamp according to claim 6, it is characterized in that: described dipped beam LED light source (21), described dipped beam auxiliary LED light source (23), described distance light auxiliary LED light source (24) are the round LED lamp pearl of a 10W, described distance light LED light source (22) is the round LED lamp pearl of three 3W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420092618.0U CN203848148U (en) | 2014-03-03 | 2014-03-03 | Automobile headlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420092618.0U CN203848148U (en) | 2014-03-03 | 2014-03-03 | Automobile headlamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203848148U true CN203848148U (en) | 2014-09-24 |
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ID=51561162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420092618.0U Expired - Fee Related CN203848148U (en) | 2014-03-03 | 2014-03-03 | Automobile headlamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN203848148U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806945A (en) * | 2014-03-03 | 2015-07-29 | 尤国锋 | Automotive headlamp |
| CN105485598A (en) * | 2015-11-05 | 2016-04-13 | 格瑞电子（厦门）有限公司 | LED headlamp and method for forming light spot of LED headlamp |
| CN109915783A (en) * | 2017-11-10 | 2019-06-21 | 株式会社小糸制作所 | Rendered image drawing apparatus |
| CN112178589A (en) * | 2020-09-30 | 2021-01-05 | 广州光联电子科技有限公司 | Heat dissipation system for automobile headlamp |
-
2014
- 2014-03-03 CN CN201420092618.0U patent/CN203848148U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806945A (en) * | 2014-03-03 | 2015-07-29 | 尤国锋 | Automotive headlamp |
| CN105485598A (en) * | 2015-11-05 | 2016-04-13 | 格瑞电子（厦门）有限公司 | LED headlamp and method for forming light spot of LED headlamp |
| CN105485598B (en) * | 2015-11-05 | 2019-06-07 | 格瑞电子（厦门）有限公司 | The headlamp of LED a kind of and the method for forming LED headlamp hot spot |
| CN109915783A (en) * | 2017-11-10 | 2019-06-21 | 株式会社小糸制作所 | Rendered image drawing apparatus |
| CN112178589A (en) * | 2020-09-30 | 2021-01-05 | 广州光联电子科技有限公司 | Heat dissipation system for automobile headlamp |
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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: 20140924 Termination date: 20150303 |
|
| EXPY | Termination of patent right or utility model |