CN203464128U - High beam optical system of LED (Light-Emitting Diode) automotive headlamp - Google Patents

High beam optical system of LED (Light-Emitting Diode) automotive headlamp Download PDF

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Publication number
CN203464128U
CN203464128U CN201320540215.3U CN201320540215U CN203464128U CN 203464128 U CN203464128 U CN 203464128U CN 201320540215 U CN201320540215 U CN 201320540215U CN 203464128 U CN203464128 U CN 203464128U
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China
Prior art keywords
radiator
led
lens
fixed head
reflective cup
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CN201320540215.3U
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Chinese (zh)
Inventor
江向东
吴小军
赵立顶
方凯
胡开威
胡志成
薛永站
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ANHUI AZURE OPTOELECTRONICS TECHNOLOGY Co Ltd
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ANHUI AZURE OPTOELECTRONICS TECHNOLOGY Co Ltd
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Abstract

The utility model belongs to the technical field of automotive lighting, and particularly relates to a high beam optical system of an LED (Light-Emitting Diode) automotive headlamp. The system comprises an LED light source, a reflector, a lens and a radiator made of aluminium alloy, wherein radiator positioning holes and a platform are arranged on the grille-shaped radiator, the LED light source is arranged in a hollowed-out part of the reflector, the LED light source is connected to the platform, the reflector comprises a reflective cup body, a reflective plane of the reflective cup body is ellipsoid-shaped, the lens comprises a flat incident plane for allowing the light to enter the lens and a convex face for allowing the light to emerge, the convex face is ellipsoid-shaped, and the lens is fixed on the radiator through a lens holder. According to the high beam optical system, the lighting effect is good, the intensity of illumination is higher, the vision is clear, the heat dissipation effect is good, and the automotive headlamp is enabled to be in a safe and stable working environment, thus the safety of driving is greatly improved, and the service life of the automotive headlamp is prolonged.

Description

LED dazzle lamp optical system
Technical field
The utility model belongs to automotive lighting technical field, is specifically related to a kind of LED dazzle lamp optical system.
Background technology
In prior art, auto lamp headlamp generally takes reflector to carry out optically focused, and the light after reflector optically focused adopts lens to carry out optically focused again when outgoing, and makes the light of vehicle front reach certain brightness value, thereby provides illumination for human pilot.But in prior art, there is following defect: one, after reflector optically focused, there is the inhomogeneous defect of light, in prior art, conventionally can at inner surface increase salient point, improve and light effect at reflector, but this structure can cause producing speck, lighting effect is not good; Its two, the emergent ray of existing car headlamp comparatively disperses, and range is shorter, illumination definition is poor, easily the security of driving is caused to harmful effect.
In addition, automobile lamp inside is an airtight environment, when car headlamp is during in illumination condition, the residing closed environment of car light will produce higher temperature due to heat accumulation, this higher temperature is not only easily at the inner fog that produces of car light, affect illuminating effect, also easily make the parts temperature distortion in car headlamp, even occur the phenomenon of parts scorification; Because the hot gas that Yin Gaowen produces is mobile not smooth in the environment of sealing, also can cause the electronic product lost of life of car headlamp inside, had a strong impact on the normal use of car headlamp.
Therefore, how obtaining the car headlamp that a kind of lighting effect is good and radiating effect is good, is the technical problem that current automotive lighting technical field is needed solution badly.
Utility model content
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, a kind of LED dazzle lamp optical system is provided, native system not only lighting effect is good, illuminance is higher, get a clear view, also there is good radiating effect, guaranteed in the working environment of car headlamp in safety and stability, thereby improved widely the security of driving a vehicle and the service life that has extended car headlamp.
For achieving the above object, the utility model has adopted following technical scheme:
A LED dazzle lamp optical system, comprises LED light source, reflector and lens, and this distance light optical system also comprises the radiator of being made by aluminium alloy, and described radiator is provided with radiator locating hole, and radiator is grid-like;
On described radiator, be provided with for settling the platform of reflector, described reflector is provided with hollow-out parts, and described LED light source is arranged on described hollow-out parts place, and LED light source is connected with described platform;
Described reflector comprises reflective cup, described reflective cup for reflecting the reflecting surface of the light that LED light source sends, to be ellipsoid planar;
Described lens are planoconvex spotlight, comprise that the light that makes to come via the surface of emission reflection of reflective cup enters the plane plane of incidence of lens, also comprises that, for the outer convex surface of light outgoing, it is planar that described outer convex surface is ellipsoid; Described lens scioptics support is fixed on described radiator.
Preferably, described radiator is that the fin by a plurality of fin shapes forms, and between described adjacent fin, is provided with gap.
Preferably, the reflecting surface of described reflective cup is around the oval major axis Rotate 180 at elliptic arc place ° and half surface of revolution forming by elliptic arc; Described elliptic arc is the major axis in same quadrant of described ellipse and the segmental arc that minor axis surrounds.
Preferably, described lens near a side of the described plane of incidence, be provided with protrude outside convex side, with the positioning convex ring that described lens carrier matches, described outer convex surface overlaps each other with the axis of rotation of described positioning convex ring.
Further, the oval major axis at described elliptic arc place and the length ratio between minor axis are 3:2.
Further, described reflector also comprises the first fixed head and the second fixed head being connected with reflective cup; One side curved edge of described reflecting surface forms the rim of a cup portion of being convenient to light outgoing, and the opposite side curved edge of reflecting surface is outwards postponed and formed the shirt rim portion of being convenient to fixing reflective cup; Described the first fixed head is arranged on described rim of a cup portion place, and the second fixed head is connected with the downside of the shirt rim portion of reflective cup, is positioned at position reflective cup inside and the second fixed head plate face in reflecting surface downside lower than the focal position of described reflecting surface; Between described the second fixed head plate face in reflective cup inside and described reflecting surface, be provided with the hollow-out parts of being convenient to settle LED light source;
Described the first fixed head is fixedly connected with described radiator; On described the first fixed head, offer the semicircle shape sky portion of being convenient to light outgoing; Described the second fixed head is fixedly installed on the platform on radiator.
Preferably, described platform is arranged on the middle part of radiator; On platform, for settling on the radiator of position rear side of LED light source, be provided with the first empty portion of running through radiator body.
Further, on the radiator of described platform downside, be provided with for settling the second empty portion of LED driving power, between described the first empty portion and the second empty portion, be provided with for separating the heat dissipation grid of the two.
Further, described radiator is provided with outwardly air vent in a side that deviates from described platform, and described air vent is connected with the first empty portion.
The beneficial effects of the utility model are:
1), the radiator in the utility model is aluminum alloy material, and radiator is set to grid-like, also be that radiator is to consist of a plurality of fin adjacent one another are, between adjacent fin, be provided with gap, this set has increased area of dissipation, improve radiating efficiency, thereby increased substantially radiating effect.
2), the utility model is provided with for settling the platform of LED light source on radiator, while also working, LED light source is fixed on platform, be conducive to like this radiator and absorb as much as possible the heat that LED light source produces, and by the mode of heat loss through radiation, dissipation of heat is gone out, thereby guaranteed LED light source be the bottom temp of light emitting diode lower than junction temperature, ensured the work that LED light source can lasting stability.
3), the utility model is provided with the first empty portion of running through radiator body for settling on the radiator of position rear side of LED light source on platform, being provided with of the first empty portion is beneficial to the heat loss through convection performance improving in car headlamp, further improved radiating efficiency.
4), the utility model is provided with at the rear side of the first empty portion the air vent being connected with the first empty portion, thereby make heat in car headlamp can be transferred to along with the circulation of air the external world, greatly improved the radiating efficiency of car headlamp.
5), the utility model is provided with for separating the heat dissipation grid of the two between described the first empty portion and the second empty portion, also be that the utility model is kept apart LED light source and LED driving power effectively, not only solved the heat dissipation problem of LED driving power, also avoided the heat accumulation of the two generation together, guaranteed that car headlamp normally and stably works.
6), the reflecting surface in the utility model adopts ellipsoid design, also the reflecting surface that is reflector consists of single ellipsoid, adopt single curved surface to make reflective cup be easy to machine-shaping, the light type that is reflected by ellipsoid simultaneously and present is even, not only effectively improve the light effect that goes out that has improved car headlamp, and gained light type meets laws and regulations requirement.
7), the outer convex surface of the lens in the utility model adopts ellipsoid design, also the outer convex surface that is lens consists of single ellipsoid, adopt single curved surface to make lens be easy to machine-shaping, simultaneously even via the light luminance of these lens institute outgoing, not only brightness value is higher, and the irradiation distance of light is far away, thereby the lens in the utility model not only improve and have improved the illuminating effect of car headlamp effectively, and have guaranteed preferably the security of driving.
8), the utility model arranged outside of convex surface outside lens has positioning convex ring, thereby the installation that is conducive to lens is fixed; In addition, the setting of positioning convex ring can guarantee that the installation site of lens is comparatively accurate, thereby has guaranteed that the illuminance of light is higher.
Accompanying drawing explanation
Fig. 1 is STRUCTURE DECOMPOSITION figure of the present utility model.
Fig. 2 is working state schematic representation of the present utility model.
Fig. 3,4 is all the structural representations of a kind of embodiment of radiator in the utility model.
Fig. 5 is the structural representation of the another kind of embodiment of radiator in the utility model.
Fig. 6 is the structural representation of reflector in the utility model.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is the stereoscopic-state schematic diagram of transmitter in the utility model.
Fig. 9 is the structural representation of lens in the utility model.
Figure 10 is the cross sectional representation of Fig. 9.
In figure, the implication of label symbol is as follows:
10-reflective cup, 11-the first fixed head 12-process Installation hole
13-the first fixed head 14-surface of emission 15-hollow-out parts 20-LED light source
30-radiator, 31-radiator locating hole, 32-fin, 33-platform
Empty portion of the empty portion 36-the second of 34-fixed feet 35-the first
37a-the first positioning screw hole 37b-the second positioning screw hole 38-air vent
40-lens 41-outer convex surface 42-plane of incidence, 43-positioning convex ring
50-lens carrier, 60-LED driving power
H-thickness L-diameter a-major axis b-minor axis
The specific embodiment
For ease of understanding, below in conjunction with accompanying drawing, the concrete structure of each part in the utility model is further described.
1. reflector
As shown in Fig. 6~8, reflector comprises reflective cup 10, and it is planar that the reflecting surface 14 of described reflective cup 10 is ellipsoid, and the reflecting surface 14 of described reflective cup 10 is around the oval major axis a Rotate 180 at elliptic arc place ° and half surface of revolution forming by elliptic arc; Described elliptic arc is the major axis a in same quadrant of described ellipse and the segmental arc that minor axis b surrounds.
As shown in Figure 6, the reflecting surface 14 of described reflective cup 10 is also the internal face of reflective cup 10.
Reflector in the utility model, the oval major axis a at described elliptic arc place and the length ratio between minor axis b are 3:2, for instance, when transverse a gets 90mm, the length of ellipse short shaft b is 60mm.
As shown in Fig. 6~8, this reflector also comprises the first fixed head 11 and the second fixed head 13 being connected with reflective cup 10; One side curved edge of described reflecting surface 14 forms the rim of a cup portion of being convenient to light outgoing, and the opposite side curved edge of reflecting surface 14 is outwards postponed and formed the shirt rim portion of being convenient to fixing reflective cup 10; Described the first fixed head 11 is fixed on the rim of a cup portion place in light exit direction one side of reflecting surface 14, and the second 13 of fixed heads are fixedly installed on the shirt rim portion place of reflective cup 10 downsides; On described the first fixed head 11, around the rim of a cup portion of reflective cup 10, be provided with on the plate face that 13 of three process Installation holes, 12, the second fixed heads are stretching out reflective cup 10 shirt rim portions outsides and be provided with two process Installation holes 12; On described the first fixed head 11, offer the semicircle shape sky portion 111 of being convenient to light outgoing.
Preferably, as shown in Fig. 6,8, the plate face of the plate face of described the first fixed head 11 and the second fixed head 13 is perpendicular to one another.
As shown in Figure 6, described the second fixed head 13 is positioned at the downside of the shirt rim portion of reflective cup 10; Be positioned at positions reflective cup 10 inside and the second fixed head 13 plate faces in reflecting surface 14 downsides lower than the focal position of described reflecting surface 14; Between described the second fixed head 13 plate faces in reflective cup 10 inside and described reflecting surface 14, be provided with the hollow-out parts 15 of being convenient to settle LED light source 20.
2. lens
As shown in Fig. 9,10, lens 40 are planoconvex spotlight, comprise the plane plane of incidence 42 and supply the outer convex surface 41 of light outgoing, and it is planar that described outer convex surface 41 is ellipsoid, between the described plane of incidence 42 and the outer convex surface 41 for light outgoing, are transparent mirror body.
As shown in Fig. 9,10, lens are provided with and protrude the positioning convex ring 43 in convex surface 41 outsides outside in the side near the described plane of incidence 42, and described outer convex surface 41 overlaps each other with the axis of rotation of described positioning convex ring 43.
The planar outer convex surface 41 of ellipsoid can have various shape, and in the present embodiment, as shown in figure 10, the thickness H of described outer convex surface 41 is 23.5mm, and described outer convex surface 41 is 70mm with the described positioning convex ring 43 resulting diameter of a circle L in intersection; The focal length of the outer convex surface 41 that described ellipsoid is planar is 58mm.
The thickness H of described outer convex surface 41 is the i.e. height of outer convex surface 41 also, described outer convex surface 41 and the described positioning convex ring 43 resulting diameter of a circle L in intersection also with Figure 10 in the length of the corresponding string of elliptic arc.
The well-determined lens of focal length by the thickness H of the outer convex surface 41 of above-mentioned size, outer convex surface 41 with the described positioning convex ring 43 resulting diameter of a circle L in intersection and outer convex surface 41, be easy to make light to converge, be conducive to traffic safety, guaranteeing that car headlamp reaches on the basis of higher illuminance value, has further reduced production cost.
3. radiator
As shown in Fig. 3~5, radiator 30 is provided with radiator locating hole 31 and for settling the platform 33 of LED light source, described radiator 30 is made by aluminium alloy, and described radiator 30 is grid-like.
As shown in Fig. 3~5, described grid-like radiator 30 is that the fin 32 by a plurality of fin shapes forms, and between described adjacent fin 32, is provided with gap.
As shown in Fig. 3,5, described platform 33 is arranged on the middle part of radiator 30, is provided with the LED light source locating hole of being convenient to fixed L ED light source 20 on platform 33; On platform 33, for settling on the radiator of position rear side of LED light source 20, be provided with the first empty portion 35 of running through radiator body; On the radiator 30 of described platform 33 downsides, be provided with for settling the second empty portion 36 of LED driving power 60, between described the first empty portion 35 and the second empty portion 36, be provided with for separating the heat dissipation grid of the two groups of fins that described heat dissipation grid also consists of a plurality of fin 32.
The heat dissipation grid that having between the first empty portion 35 and the second empty portion 36 set thickness has good radiating effect, guaranteed that LED light source 20 and LED driving power 60 can not interact when work, guaranteed in car headlamp that electronic devices and components are in normal working condition, the working life that has improved each electronic devices and components in car headlamp, has reduced maintenance cost.
Further, as shown in Figure 5, described radiator 30 is provided with outwardly air vent 38 in a side that deviates from described platform 33, and described air vent 38 is connected with the first empty portion 35, has further guaranteed the radiating effect to car headlamp.
In described air vent 38, be provided with the fin 32 of a plurality of fin shapes, to improve heat-transfer effect.
As shown in Fig. 3~5, on described platform 33, for settling on the radiator of position rear side of LED light source 20, be provided with a plurality of shaft-like fixed feet 34, these a plurality of fixed feet 34 are parallel to each other and be arranged on the upside of described the first empty portion 35, and these a plurality of fixed feet 34 are all stretched out forward the upside at described platform 33, described fixed feet 34 is axially provided with the first positioning screw hole 37a of built-in screw thread along it.On radiator between described the first empty portion 35 and the second empty portion 36, be provided with a plurality of the second positioning screw hole 37b.
Described reflector is fixed with the first positioning screw hole 37a and the second positioning screw hole 37b on described radiator 30 by the process Installation hole 12 on the first fixed head 11 and the second fixed head 13, same, the process Installation hole on described lens 40 scioptics supports 50 is arranged on radiator 30.The i.e. setting of the first positioning screw hole 37a and the second positioning screw hole 37b, make reflector, lens 40 in car headlamp be connected as a whole with radiator 30 when work, when car headlamp is dispelled the heat well, guarantee the illuminating effect of car headlamp, improved the overall performance of car headlamp.
Below in conjunction with 1,2 pairs of structures of the present utility model of accompanying drawing and the course of work, elaborate.
As shown in Figure 1, 2, this LED dazzle lamp optical system comprises LED light source 20, reflector, radiator 30, lens 40, lens carrier 50 and LED driving power 60.
Described LED light source 20 is arranged on hollow-out parts 15 places of reflector, and the bottom of LED light source 20 abuts on the platform 33 of radiator 30;
During work, reflector is arranged on radiator 30, adopt screw successively through the process Installation hole 12 on the first fixed head 11 and the first positioning screw hole 37a on radiator 30, and adopt screw successively through process Installation hole 12 and the second positioning screw hole 37b on the first fixed head 11; Then adopt screw successively through the process Installation hole 12 on the second fixed head 13 and the LED light source locating hole on platform 33, thereby reflective cup 10 is fixed on radiator 30 tightly; Place and fixed L ED light source 20 at hollow-out parts 15 places at reflective cup 10, and at the second empty portion 36 places of radiator 30, fixed L ED driving power 60 is installed; Then lens 40 are fixed on lens carrier 50, then lens carrier 50 are fixed on to the front side of radiator 30.
Connect LED light source 20 and LED driving power 60, LED light source 20 is luminous, and the light that LED light source 20 sends after reflecting surface 14 reflection of reflective cup 10 outgoing to lens 40 places, last light is penetrated by lens 40, finally obtain meeting laws and regulations requirement, the uniform light type of outgoing, thereby effectively improve and improved the light effect that of car headlamp.

Claims (9)

1. a LED dazzle lamp optical system, comprises LED light source (20), reflector and lens (40), it is characterized in that:
This distance light optical system also comprises the radiator (30) of being made by aluminium alloy, and described radiator (30) is provided with radiator locating hole (31), and radiator (30) is grid-like;
On described radiator (30), be provided with the platform (33) for settling reflector, described reflector is provided with hollow-out parts, and described LED light source (20) is arranged on described hollow-out parts place, and LED light source (20) is connected with described platform (33);
Described reflector comprises reflective cup (10), described reflective cup (10) for reflecting the reflecting surface (14) of the light that LED light source (20) sends, to be ellipsoid planar;
Described lens (40) are planoconvex spotlight, comprise that the light that makes to come via the surface of emission (14) reflection of reflective cup (10) enters the plane plane of incidence (42) of lens, also comprise that it is planar that described outer convex surface (41) is ellipsoid for the outer convex surface (41) of light outgoing; Described lens (40) scioptics supports (50) are fixed on described radiator (30).
2. LED dazzle lamp optical system according to claim 1, is characterized in that: described radiator (30) is by fin (32) formation of a plurality of fin shapes, between described adjacent fin (32), is provided with gap.
3. LED dazzle lamp optical system according to claim 1, is characterized in that: the reflecting surface (14) of described reflective cup (10) is half surface of revolution consisting of around oval major axis (a) Rotate 180 at elliptic arc place ° elliptic arc; Described elliptic arc is the major axis in same quadrant (a) of described ellipse and the segmental arc that minor axis (b) surrounds.
4. LED dazzle lamp optical system according to claim 1, it is characterized in that: described lens (40) are being provided with the positioning convex ring (43) that protrudes convex surface (41) outside outside, matches with described lens carrier (50) near a side of the described plane of incidence (42), described outer convex surface (41) overlaps each other with the axis of rotation of described positioning convex ring (43).
5. LED dazzle lamp optical system according to claim 3, is characterized in that: the oval major axis (a) at described elliptic arc place and the length ratio between minor axis (b) are 3:2.
6. according to the LED dazzle lamp optical system described in claim 3 or 5, it is characterized in that: described reflector also comprises the first fixed head (11) and the second fixed head (13) being connected with reflective cup (10); One side curved edge of described reflecting surface (14) forms the rim of a cup portion of being convenient to light outgoing, and the opposite side curved edge of reflecting surface (14) is outwards postponed and formed the shirt rim portion of being convenient to fixing reflective cup (10); Described the first fixed head (11) is arranged on described rim of a cup portion place, the second fixed head (13) is connected with the downside of the shirt rim portion of reflective cup (10), is positioned at reflective cup (10) position inner and the second fixed head (13) the plate face in reflecting surface (14) downside lower than the focal position of described reflecting surface (14); Described being positioned between inner the second fixed head (13) the plate face of reflective cup (10) and described reflecting surface (14) is provided with the hollow-out parts (15) of being convenient to settle LED light source (20);
Described the first fixed head (11) is fixedly connected with described radiator (30); On described the first fixed head (11), offer the semicircle shape sky portion (111) of being convenient to light outgoing; Described the second fixed head (13) is fixedly installed on the platform (33) on radiator (30).
7. LED dazzle lamp optical system according to claim 6, is characterized in that: described platform (33) is arranged on the middle part of radiator (30); On platform (33), for settling on the radiator of position rear side of LED light source (20), be provided with the first empty portion (35) of running through radiator body.
8. LED dazzle lamp optical system according to claim 7, it is characterized in that: on the radiator (30) of described platform (33) downside, be provided with for settling the second empty portion (36) of LED driving power, between described the first empty portion (35) and the second empty portion (36), be provided with for separating the heat dissipation grid of the two.
9. according to the LED dazzle lamp optical system described in claim 7 or 8, it is characterized in that: described radiator (30) is provided with outwardly air vent (38) in a side that deviates from described platform (33), described air vent (38) is connected with the first empty portion (35).
CN201320540215.3U 2013-08-30 2013-08-30 High beam optical system of LED (Light-Emitting Diode) automotive headlamp Active CN203464128U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320540215.3U CN203464128U (en) 2013-08-30 2013-08-30 High beam optical system of LED (Light-Emitting Diode) automotive headlamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320540215.3U CN203464128U (en) 2013-08-30 2013-08-30 High beam optical system of LED (Light-Emitting Diode) automotive headlamp

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104566216A (en) * 2014-12-31 2015-04-29 华侨大学 Asymmetric LED street lamp lens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104566216A (en) * 2014-12-31 2015-04-29 华侨大学 Asymmetric LED street lamp lens
CN104566216B (en) * 2014-12-31 2018-01-16 华侨大学 A kind of asymmetric LED street lamp lens

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