CN104976567A - High-efficiency LED double-chip high beam and low beam integrated automobile headlamp optical system - Google Patents
High-efficiency LED double-chip high beam and low beam integrated automobile headlamp optical system Download PDFInfo
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- CN104976567A CN104976567A CN201510444438.3A CN201510444438A CN104976567A CN 104976567 A CN104976567 A CN 104976567A CN 201510444438 A CN201510444438 A CN 201510444438A CN 104976567 A CN104976567 A CN 104976567A
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- Prior art keywords
- reflector
- reflecting surface
- plate
- light
- location
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/36—Combinations of two or more separate reflectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
- F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
- F21S41/692—Shields, i.e. screens not creating an image meant to be projected
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to a high-efficiency LED double-chip high beam and low beam integrated automobile headlamp optical system. The system comprises LED light sources, reflection cups and a lens. The LED light sources comprise the upper LED light source and the lower LED light source. The reflection cups are the upper reflection cup matched with the upper LED light source and the lower reflection cup matched with the lower LED light source. The lens comprises a planar incident face and an outer convex face allowing light to be emitted. The side, close to the incident face, of the lens is provided with a positioning protruding ring protruding on the outer side of the outer convex face. The rotation axis of the outer convex face and the rotation axis of the positioning protruding ring coincide with each other. The thickness of the outer convex face of the lens is set to be B. The front section part with the thickness being B/3 and from the top of the outer convex face to one side of the positioning protruding ring is an ellipsoid face, and the rear section part with the thickness being 2B/3 is a paraboloid. The joint between the ellipsoid-face-shaped front section part and the paraboloid-shaped rear section part is in smooth transition. The system is good in illumination effect, high in illumination degree and clear in vision; besides, the light shape of emitted light is good, and brightness and luminous efficacy are higher.
Description
Technical field
The invention belongs to technical field of automobile illumination, be specifically related to a kind of high efficiency LED dual chip distance-light all-in-one car headlight optical system.
Background technology
In prior art, vehicle front lighting headlight 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 brightness value that the light of vehicle front reaches certain, thus provides illumination for human pilot.But there is following defect in prior art: there is the defect that light is uneven after reflector optically focused, in prior art, usually can increase salient point at reflector at inner surface and improve light-out effect, but this structure can cause producing speck, lighting effect is not good.
Therefore, how obtaining the headlight for vehicles that a kind of lighting effect is good, is the technical problem that current technical field of automobile illumination needs solution badly.
Summary of the invention
Object of the present invention is for overcoming above-mentioned the deficiencies in the prior art, and provide a kind of high efficiency LED dual chip distance-light all-in-one car headlight optical system, this headlight not only lighting effect is good, illuminance is higher, get a clear view, and the light type of emergent ray is good, brightness and light efficiency are also higher.
For achieving the above object, present invention employs following technical scheme:
A kind of high efficiency LED dual chip distance-light all-in-one car headlight optical system, comprise LED light source, reflector, lens, described LED light source comprises the upper LED light source be arranged on locating platform upper table surface and the lower LED light source be arranged on locating platform following table;
Described reflector is divided into the upper reflector matched with upper LED light source and the lower reflector matched with lower LED light source;
Described lens are planoconvex spotlight, comprise the plane plane of incidence and the outer convex surface for light outgoing; Lens are provided with in the side near the described plane of incidence positioning convex ring protruding convex side outside, and the axis of rotation of described outer convex surface and described positioning convex ring coincides with one another; Be transparent mirror body between the described plane of incidence and the outer convex surface for light outgoing; If the thickness of the outer convex surface of described lens is B, the thickness from outer convex surface top to positioning convex ring side is the front section of B/3 is ellipsoid, and thickness is the hindfoot portion of 2B/3 is parabola; Junction rounding off between the front section of described ellipsoid planar and the hindfoot portion of parabolic shape.
Preferably, described upper reflector comprises reflector cup, described upper reflector cup inside is upper reflector reflecting surface, from the rim of a cup of upper reflector to the rim of a cup side away from upper reflector, described upper reflector reflecting surface is by reflector reflecting surface on be connected in turn first, reflector reflecting surface on second, on 3rd, reflector reflecting surface is formed, reflector reflecting surface on first, reflector reflecting surface on second, on 3rd, reflector reflecting surface is the curved surface of secondary Bezier matching, junction on first on reflector reflecting surface and second between reflector reflecting surface and on second on reflector reflecting surface and the 3rd between reflector reflecting surface is and smoothly transits, and reflector reflecting surface on first, reflector reflecting surface on second, on 3rd, the radius of curvature of reflector reflecting surface reduces successively.
Further, described upper reflector cup is provided with the upper reflector stiffener that vertical shape is arranged in rim of a cup side, the bottom of upper reflector cup be provided with outwardly, the upper reflector location-plate of horizontal setting; The plane that the axis of upper reflector stiffener and the axis of upper reflector location-plate are intersected and obtained is upper reflector perspective plane, and the projected length of described upper reflector location-plate on upper reflector perspective plane is greater than the projected length of reflector stiffener on upper reflector perspective plane.
Further, if the projected length of upper reflector location-plate on upper reflector perspective plane is L1, near rim of a cup side and the upper reflector location-plate that length is 2L1/5 is upper reflector location-plate front section, away from rim of a cup side and the upper reflector location-plate that length is L1/5 is upper reflector location-plate hindfoot portion, intermediate length is the upper reflector location-plate of 2L1/5 is upper reflector location-plate stage casing part; Reflector reflecting surface and the corresponding connection of upper reflector location-plate front section on described first, on second, reflector reflecting surface is corresponding with upper reflector location-plate stage casing part connects, and on the 3rd, reflector reflecting surface is corresponding with upper reflector location-plate hindfoot portion connects.
Preferably, described lower reflector comprises lower reflector cup, described lower reflector cup inside is lower reflector reflecting surface, from the rim of a cup of lower reflector to the rim of a cup side away from lower reflector, described lower reflector reflecting surface is by the first time reflector reflecting surface be connected in turn, second time reflector reflecting surface, 3rd time reflector reflecting surface is formed, first time reflector reflecting surface, second time reflector reflecting surface, 3rd time reflector reflecting surface is the curved surface of secondary Bezier matching, junction between first time reflector reflecting surface and second time reflector reflecting surface and between second time reflector reflecting surface and the 3rd time reflector reflecting surface is and smoothly transits, and first time reflector reflecting surface, second time reflector reflecting surface, the radius of curvature of the 3rd time reflector reflecting surface reduces successively.
Further, described lower reflector cup is provided with the lower reflector stiffener that vertical shape is arranged in rim of a cup side, the bottom of lower reflector cup be provided with outwardly, the lower reflector location-plate of horizontal setting; The plane that the axis of lower reflector stiffener and the axis of lower reflector location-plate are intersected and obtained is lower reflector perspective plane, and the projected length of described lower reflector location-plate on lower reflector perspective plane is greater than the projected length of lower reflector stiffener on lower reflector perspective plane.
Further, the projected length of plate face on lower reflector perspective plane setting reflector location-plate is L, near rim of a cup side and the lower reflector location-plate that length is L2/6 is lower reflector location-plate front section, away from rim of a cup side and the lower reflector location-plate that length is L2/6 is lower reflector location-plate hindfoot portion, intermediate length is the lower reflector location-plate of 2L2/3 is lower reflector location-plate stage casing part; Described first time reflector reflecting surface and the corresponding connection of lower reflector location-plate front section, second time reflector reflecting surface is corresponding with lower reflector location-plate stage casing part to be connected, and the 3rd time reflector reflecting surface is corresponding with lower reflector location-plate hindfoot portion to be connected.
Preferably, namely described upper reflector location-plate descends on upper reflector perspective plane the projected length L1 on reflector perspective plane to be greater than lower reflector location-plate and namely descends projected length L2 on reflector perspective plane on upper reflector perspective plane.
Further, native system also comprises the mechanism of being in the light in the beam projecting front being arranged on reflector and lower reflector, described in mechanism of being in the light comprise the location-plate be fixedly connected with radiator, location-plate is provided with light barrier and driving mechanism; Described driving mechanism drives light barrier action to send dipped beam light type or distance light light type to make vehicle front lighting headlight.
Preferably, described light barrier comprises and is convenient to himself and forms the hinged rotational axis hole coordinated with location-plate; Light barrier is respectively arranged be in the light arm and the moving arm for the formation of "cut-off"line at the side of rotational axis hole;
The described arm that is in the light is tabular, and tabular is in the light, the plate face of arm is vertical with beam projecting direction, the be in the light upper edge of arm is being provided with the first straight flange near rotational axis hole side, rotational axis hole side is being provided with the second straight flange, both described first straight flange and the second straight flange are not parallel and linked together by the arc-shaped side raised up, and the peak of described arc-shaped side is given prominence in the upside of the first straight flange;
Described moving arm is provided with poke hole, the output of driving mechanism and the end of shifting shaft are stretched in poke hole, the shifting shaft of described driving mechanism drives the arm that is in the light of light barrier to rotate up and down around rotational axis hole by poke hole, sends dipped beam light type or distance light light type to make vehicle front lighting headlight.
Beneficial effect of the present invention is:
1), the present invention adopts two reflecting cup structure, namely the reflector in this practicality is divided into reflector and lower reflector, upper reflector in the present invention simultaneously and the reflecting surface of lower reflector are the curved surface of secondary Bezier matching, the reflecting surface that this curved surface is formed will make the light type of emergent ray better, brightness and light efficiency are also higher, therefore the present invention is under standard compliant prerequisite, not only effectively improve the light-out effect improving headlight for vehicles, gained light type meets laws and regulations requirement, and ensure that traffic safety, also improve the ride comfort of passenger inside the vehicle.
2) the upper reflector, in the present invention and lower reflector all adopt the mode of three sections of reflecting surface combinations, and three sections of reflectings surface are the curved surface of secondary Bezier matching, the light that the project organization of this many surface fittings not only makes lamp pearl and LED light source send is by Collection utilization to greatest extent, and two light source send light be effectively super-imposed together, substantially increase brightness and the light efficiency of emergent ray.Compared to conventional design can reach 64% light efficiency, light efficiency of the present invention up to 82.9%, thus present invention greatly enhances efficiency.
3), in the present invention, the outer convex surface of lens adopts multiple aspheric design, namely the front section of outer convex surface and exit end are ellipsoid, its major function is for break up emergent ray, and the hindfoot portion of outer convex surface and incidence end are parabola, and its major function converges for making incident ray.In the present invention, this kind of design of lens, not only can realize the reasonable distribution again to incident ray, and further increase lighting effect and the illuminance of emergent ray, thus meet the driving sense of occupant better.
4) upper edge of the arm that is in the light, in the present invention is made up of the first straight flange be connected successively, arc-shaped side and the second straight flange, the upper edge of this structure can control light type more accurately, thus the first straight flange, arc-shaped side and the second straight flange are fitted to each other emergent ray not only can be made to meet setting light type, and the light type of emergent ray and brightness have have all met or exceeded Standard.
Accompanying drawing explanation
Fig. 1 is the explosive decomposition schematic diagram of headlight module residing for this optical system.
Fig. 2,3 is all structural representations of headlight module.
Fig. 4 is the cross-sectional view of Fig. 3.
Fig. 5,6 is all structural representations of lens.
Fig. 7,8 is all structural representations of headlight module middle sleeve.
Fig. 9,10 is all structural representations of radiator in headlight module.
Figure 11 is the stereoscopic-state schematic diagram of upper reflector.
Figure 12 is the structural representation of upper reflector.
Figure 13 is the generalized section of upper reflector.
Figure 14 is the stereoscopic-state schematic diagram of lower reflector.
Figure 15 is the structural representation of lower reflector.
Figure 16 is the upward view of Figure 15.
Figure 17 a, 17b are all the mechanism's structural representations when headlight sends dipped beam light type that are in the light.
Figure 18 a, 18b are all the mechanism's structural representations when headlight sends distance light light type that are in the light.
Figure 19 is the structural representation of light barrier.
Figure 20 is the beam projecting line map in the present invention.
Figure 21 is the dipped beam light type figure that headlight module sends.
Figure 22 is the distance light light type figure that headlight module sends.
In figure, the implication of label symbol is as follows:
10-upper reflector 11-upper reflector cup 111-upper reflector reflecting surface
12-upper reflector stiffener 13-upper reflector location-plate 131-upper reflector locating hole
20-lower reflector 21-lower reflector cup 211-lower reflector reflecting surface
22-lower reflector stiffener 23-lower reflector location-plate 231-lower reflector locating hole
30-radiator, 31-locating platform 31a-upper table surface 31b-following table
32a-upper reflector positioning table 32b-lower reflector positioning table 33-buttcover plate
331-sleeve locating dowel, 332-sleeve installing hole, 333-module locating hole
334-the mechanism's locating hole 335 of being in the light-be in the light mechanism's locating dowel 34-heat dissipation channel
35-fin, 351-fan mounting holes
40-lens, 41-outer convex surface 42-plane of incidence, 43-positioning convex ring
50-sleeve, 51-spacing flange 52-holder, 53-claw
54-limited block, 55-hollow-out parts, 56-process Installation hole, 57-breach
60-be in the light mechanism's 61-location-plate, 611-block, 62-driving mechanism
621-shifting shaft, 63-light barrier, 631-rotational axis hole 632-be in the light arm
6321-the first straight flange 6322-arc-shaped side 6323-the second straight flange
6324-stopper slot, 633-moving arm, 6331-poke hole
70a-upper fixation spring tab 70b-lower fixation spring tab
80a-upper LED light source 80b-lower LED light source
90-Power conversion board
100-fan
Detailed description of the invention
For ease of understanding, below in conjunction with accompanying drawing, the concrete structure of each part in vehicle front lighting headlight module is further described.
1. lens
As shown in Figure 5,6, lens 40 are planoconvex spotlight, comprise the plane plane of incidence 42 and the outer convex surface 41 for light outgoing; Lens 40 are being provided with the positioning convex ring 43 protruded outside convex surface 41 outside near the side of the described plane of incidence 42, described outer convex surface 41 coincides with one another with the axis of rotation of described positioning convex ring 43; Be transparent mirror body between the described plane of incidence and the outer convex surface for light outgoing.
The material of described lens 40 is high borosilicate optical grade glass.
As shown in Figure 6, the thickness of the outer convex surface 41 of described lens 40 is B, and the thickness from outer convex surface 41 top to positioning convex ring 43 side is the front section of B/3 is ellipsoid, and thickness is the hindfoot portion of 2B/3 is parabola; Junction rounding off between the front section of described ellipsoid planar and the hindfoot portion of parabolic shape.
First light enter the hindfoot portion of parabolic shape from the plane of incidence 42, and this hindfoot portion will enter light collection wherein, and then light enters the front section of ellipsoid planar, and light is broken up rear injection by front section.Lens in the present invention penetrate after incidence light wherein again reasonable distribution, thus make the light of outgoing not only meet GB, also can meet the driving sense of passenger inside the vehicle better.
2. sleeve
As shown in Figure 7,8, sleeve 50 is in hollow form, sleeve 50 comprises circular cylindrical shell and is arranged on the holder 52 on rear side of cylindrical shell, cylindrical shell and holder 52 integrally shape, the leading section of cylindrical shell be provided with in cylindrical shell lateral buckling, the spacing flange 51 of ring-type, the leading portion barrel of the close spacing flange of described cylindrical shell is provided with the claw portion matched with spacing flange, and the bottom of described cylindrical shell is provided with the breach 57 extended to barrel front end from cylinder back-end.
As shown in figs. 2 to 4, described breach 57 is arranged on the positive lower end of sleeve 50, is conducive to timely heat radiation.
As shown in Figure 7,8, described claw portion comprises three claws 53 be circumferentially arranged on equably on cylindrical shell leading portion barrel, the rear end of described claw 53 and the leading portion barrel of cylindrical shell are linked to be an entirety, the front end edge drum shaft of claw 53 is to overhanging forward, namely be provided with hollow-out parts 55 between the front end of claw 53 and cylindrical shell barrel, and claw 53 is inside its rear end to front end gradually elasticity deflection cylindrical shell.The front end of any one claw 53 is provided with the limited block 54 to cylindrical shell inner bulge, and limited block 54 is set to inclined-plane towards holder 52 side, forms stop zone between limited block 54 and described spacing flange 51.
As shown in Figure 7, the end face of described holder 52 is provided with process Installation hole 56 and fastening screw pit.
3. go up reflector
As shown in Figure 11 ~ 13, upper reflector 10 comprises reflector cup 11, upper reflector cup 11 is provided with reflector stiffener 12 in rim of a cup side, the bottom of upper reflector cup 11 is provided with upper reflector location-plate 13 outwardly, and upper reflector location-plate 13 is provided with reflector locating hole 131; The plate face of described upper reflector location-plate 13 is horizontal planar, and the plate face of upper reflector stiffener 12 is in the vertical planar perpendicular with the plate face of upper reflector location-plate 13; The plane that the axis of upper reflector stiffener 12 and the axis of upper reflector location-plate 13 are intersected and obtained is upper reflector perspective plane, and the projected length of described upper reflector location-plate 13 on upper reflector perspective plane (be in fig. 12 and be parallel to paper direction or be paper direction) is greater than the projected length of upper reflector stiffener 12 on upper reflector perspective plane.
As shown in Figure 12,13, described upper reflector cup 11 inside is upper reflector reflecting surface 111, the projected length of upper reflector location-plate 13 on upper reflector perspective plane is L1, near rim of a cup side and the upper reflector location-plate that length is 2L1/5 is upper reflector location-plate front section, away from rim of a cup side and the upper reflector location-plate that length is L1/5 is upper reflector location-plate hindfoot portion, intermediate length is the upper reflector location-plate of 2L1/5 is upper reflector location-plate stage casing part.Described upper reflector reflecting surface 111 is made up of reflector reflecting surface on reflector reflecting surface, the 3rd on reflector reflecting surface, second on be connected in turn first, reflector reflecting surface and the corresponding connection of upper reflector location-plate front section on described first, on second, reflector reflecting surface is corresponding with upper reflector location-plate stage casing part connects, and on the 3rd, reflector reflecting surface is corresponding with upper reflector location-plate hindfoot portion connects.On first, on reflector reflecting surface, second, on reflector reflecting surface, the 3rd, reflector reflecting surface is the curved surface of secondary Bezier matching, junction on first on reflector reflecting surface and second between reflector reflecting surface and on second on reflector reflecting surface and the 3rd between reflector reflecting surface is and smoothly transits, and on first on reflector reflecting surface, second on reflector reflecting surface, the 3rd radius of curvature of reflector reflecting surface reduce successively.
As shown in figure 11, described upper reflector location-plate 13 is set to two pieces, and two pieces of reflector location-plates 13 divide along the axis symmetry of upper reflector cup 11 both sides being located at upper reflector cup 11.
Upper reflector reflecting surface 111 due to upper reflector 10 is the curved surface of secondary Bezier matching, thus the light that upper reflector reflecting surface 111 makes below lamp pearl and LED light source send is collected utilization to greatest extent, (conventional design only has 64% to drastically increase light efficiency, and the design in the present invention makes light efficiency reach 82.9%), also not only gained light type is better for the upper reflector reflecting surface 111 namely in the present invention, brightness is simultaneously higher, under standard compliant prerequisite, more ensure that the security of driving.
4. descend reflector
As shown in Figure 14 ~ 16, lower reflector 20 comprises lower reflector cup 21, lower reflector cup 21 is provided with lower reflector stiffener 22 in rim of a cup side, the bottom of lower reflector cup 22 is provided with lower reflector location-plate 23 outwardly, and lower reflector location-plate 23 is provided with lower reflector locating hole 232; The plate face of described lower reflector location-plate 23 is horizontal planar, and the plate face of lower reflector stiffener 22 is in the vertical planar perpendicular with the plate face of lower reflector location-plate 23; The plane that the axis of lower reflector stiffener 22 and the axis of lower reflector location-plate 23 are intersected and obtained is lower reflector perspective plane, and the projected length of described lower reflector location-plate 23 on lower reflector perspective plane (be in figure 16 and be parallel to paper direction or be paper direction) is greater than the projected length of lower reflector stiffener 22 on lower reflector perspective plane;
It is pointed out that the lower reflector location-plate 23 of the lower reflector 20 when being in operating position is positioned at upside, as shown in Fig. 1,3,4.Lower reflector 20 shown in Figure 14 ~ 16 is to be described its structure better, and does not show according to operating position.
As shown in Figure 4, described lower reflector cup 22 inside is lower reflector reflecting surface 222.
As shown in figure 16, the projected length of lower reflector location-plate 23 on lower reflector perspective plane is L2, length near rim of a cup side is the lower reflector location-plate of L2/6 is lower reflector location-plate front section, length away from rim of a cup side is the lower reflector location-plate of L2/6 is lower reflector location-plate hindfoot portion, and intermediate length is the lower reflector location-plate of 2L2/3 is lower reflector location-plate stage casing part.Described lower reflector reflecting surface 222 is made up of the first time reflector reflecting surface be connected in turn, second time reflector reflecting surface, the 3rd time reflector reflecting surface, described first time reflector reflecting surface and the corresponding connection of lower reflector location-plate front section, second time reflector reflecting surface is corresponding with lower reflector location-plate stage casing part to be connected, and the 3rd time reflector reflecting surface is corresponding with lower reflector location-plate hindfoot portion to be connected.First time reflector reflecting surface, second time reflector reflecting surface, the 3rd time reflector reflecting surface are the curved surface of secondary Bezier matching, junction between first time reflector reflecting surface and second time reflector reflecting surface and between second time reflector reflecting surface and the 3rd time reflector reflecting surface is and smoothly transits, and the radius of curvature of first time reflector reflecting surface, second time reflector reflecting surface, the 3rd time reflector reflecting surface reduces successively.
As shown in figure 22, described lower reflector location-plate 23 is set to two pieces, and two pieces of reflector location-plates 23 divide along the axis symmetry of lower reflector cup 22 both sides being located at lower reflector cup 22.
Lower reflector reflecting surface 222 due to lower reflector 20 is the curved surface of secondary Bezier matching, thus the light that lower reflector reflecting surface 222 makes below lamp pearl and LED light source send is collected utilization to greatest extent, (conventional design only has 64% to drastically increase light efficiency, and the design in the present invention makes light efficiency reach 82.9%), also not only gained light type is better for the lower reflector reflecting surface 222 namely in the present invention, brightness is simultaneously higher, under standard compliant prerequisite, more ensure that the security of driving.
As shown in Figure 3,4, namely upper reflector location-plate 13 descends on upper reflector perspective plane the projected length L1 on reflector perspective plane (be in figure 16 and be parallel to paper direction or be paper direction) to be greater than lower reflector location-plate 23 and namely descends projected length L2 on reflector perspective plane on upper reflector perspective plane.
5. radiator
Radiator 30 in the present invention is one-body molded by aluminium alloy compression casting, farthest decreases thermal resistance, improves radiating efficiency.
As shown in Fig. 9,10, radiator 30 is provided with the locating platform 31 for settling LED light source, described LED light source comprises the upper LED light source 80a be arranged on locating platform upper table surface 31a and the lower LED light source 80b be arranged on locating platform following table 31b, described upper LED light source 80a is fixed by upper fixation spring tab 70a, and lower LED light source 80b is fixed by lower fixation spring tab 70b.
The both sides up and down of described locating platform 31 are respectively equipped with the upper reflector positioning table 32a for fixing upper reflector 10 and fix the lower reflector positioning table 32b of lower reflector 20, and the table top of described upper reflector positioning table 32a and lower reflector positioning table 32b all protrudes in the outside of locating platform 31 table top.Described upper reflector positioning table 32a and lower reflector positioning table 32b is all arranged in semi-annular shape, and the opening side of semicircular ring is set to the exit direction of light.
Described radiator 30 is laid with multiple fin 35 that is parallel, fin-like in the outside of upper reflector positioning table 32a and lower reflector positioning table 32b, be provided with gap between adjacent described fin 35.The direction of extension of the described fin 35 of fin-like is perpendicular to the table top of described locating platform 31.
The middle part of the self-align platform 31 of fin height of described fin 35 diminishes gradually to the both sides of locating platform 31, as shown in Fig. 9,10, the size being in the fin 35 in the middle part of locating platform 31 is larger, and the size being in the fin 35 of locating platform 31 both sides is less, this version is conducive to the efficiency improving heat loss through radiation and heat loss through convection.
As shown in Figure 3,4, be in the fin 35 in the middle part of locating platform 31 the size up and down between two ends and upper reflector 10 glasss pushes up and at the bottom of lower reflector 20 glasss between spacing match, namely the spacing between the size up and down between two ends being in the fin 35 in the middle part of locating platform 31 at least should equal at the bottom of reflector 10 glasss top and lower reflector 20 glasss, will obtain best radiating effect like this.
As shown in Fig. 1,2,9, be in some groups of fin 35 in the middle part of locating platform 31 deviating from locating platform 31 side and be provided with fan mounting holes 351, during work, fan 100 is fixed on the back side of radiator 30 by fan mounting holes 351.
As shown in Fig. 9,10, described locating platform 31 is provided with heat dissipation channel 34, heat dissipation channel 34 runs through whole locating platform 31 along the exit direction of light, and namely heat dissipation channel 34 is provided with opening along the exit direction of light at the two ends of locating platform 31; Described heat dissipation channel 34 is set to towards fan 100 at the opening near radiator 30 side.
As shown in Figure 10, described locating platform 31 is provided with vacancy portion in its front side along beam projecting direction, and the opening of heat dissipation channel 34 on front side of locating platform 31 is opened in place of vacancy portion.Being provided with of described vacancy portion helps form convection heat transfer' heat-transfer by convection, improves radiating effect.
As shown in figures 1-4, the air draft direction of the fan 100 in the present invention overlaps with beam projecting direction and oppositely, the reflector that the air draft direction of now fan 100 has caloric value larger, under the swabbing action of fan 100, air fans 100 side flowings from lens 40 1 lateral wind, air is in the distance of flowing, to carry under one's arms successively the hot gas of dissipation from sleeve 50 and radiator 30 gap, air also flows through the cup face of reflector 10 and lower reflector 20, eventually passes through the gap between abutting fins and is discharged; Meanwhile, the hot-air sucking-off of headlight module internal is also drained by heat dissipation channel 34 by fan 100.Therefore, the fan in the present invention, by the design of its air draft approach cleverly, significantly enhances the convection current performance of air, achieves excellent heat loss through convection ability.
As shown in Fig. 9,10, front side and the beam projecting side of described locating platform 31 are provided with buttcover plate 33, and described buttcover plate 33 is the U-shape be made up of two upright plates and a horizontal cross plate; Buttcover plate 33 offers module locating hole 333 respectively at the both ends up and down of its upright plate, is provided with sleeve locating dowel 331 and sleeve installing hole 332 between two module locating holes 333 of same upright plate; Buttcover plate 33 is also provided with the mechanism's locating hole 334 that is in the light separately on two upright plate, and on its horizontal cross plate, be provided with two mechanism's locating dowels 335 that are in the light.
Two be in the light mechanism's locating hole 334 and two mechanism's locating dowels 335 that are in the light are fitted to each other, the steadiness that the mechanism 60 that can guarantee to be in the light installs, thus the light barrier 63 being conducive to being in the light in mechanism 60 reliably can play the function of its shading.
As shown in Figure 1, 2, described locating platform 31 is also provided with Power conversion board 90 in the downside of fan 100, and the front end of Power conversion board 90 is passed from the downside of fin 35 and is fixed on the following table 31b of locating platform 31.
6. to be in the light mechanism
As shown in Fig. 1,17a ~ 18b, the present invention also comprises the mechanism 60 of being in the light in the beam projecting front being arranged on reflector 10 and lower reflector 20, described mechanism 60 of being in the light comprises the location-plate 61 be fixedly connected with the buttcover plate 33 of radiator 30, location-plate 61 is provided with light barrier 63 and drives the driving mechanism 62 of light barrier 63 action; Described driving mechanism 62 drives light barrier 63 action and makes light barrier 63 be in block and sentences at the rim of a cup of upper reflector 10 and lower reflector 20 rim of a cup making headlight launch dipped beam light type or to depart from reflector 10 and lower reflector 20 and sentence and make headlight launch distance light light type two kinds of location status.
As shown in figure 19, described light barrier 63 comprises and is convenient to himself and forms the hinged rotational axis hole 631 coordinated with location-plate 61; Light barrier 63 is respectively arranged with at the side of rotational axis hole 631 be in the light arm 632 and moving arm 633.The described arm 632 that is in the light is for the formation of "cut-off"line.
The described arm 632 that is in the light is in tabular, and tabular is in the light, the plate face of arm 632 is vertical with beam projecting direction, the be in the light upper edge of arm 632 is being provided with the first straight flange 6321 near rotational axis hole 631 side, rotational axis hole 631 side is being provided with the second straight flange 6323, both described first straight flange 6321 and the second straight flange 6323 are not parallel and linked together by the arc-shaped side 6322 raised up, and the peak of described arc-shaped side 6322 gives prominence to the upside at the first straight flange 6321 and the second straight flange 6323.
As shown in Figure 17 a, 17b, when described first straight flange 6321 is in level, the horizontal plane residing for the first straight flange 6321 is higher than the higher-end point of the second straight flange 6323, and the horizontal plane also namely residing for the first straight flange 6321 is higher than the peak of the second straight flange 6323.
Described driving mechanism 62 drives moving arm 633 action, be in the light arm 632 when rotational axis hole about 631 rotates, first straight flange 6321, arc-shaped side 6322 and the second straight flange 6323 are all stretched out and launches dipped beam light type (as Figure 18 a, 18b) in the upside on location-plate 61 upper plate edge to make headlight, or the first straight flange 6321, arc-shaped side 6322 and the second straight flange 6323 are all made headlight launch distance light light type (as Figure 17 a, 17b) two kinds of location status by the upper plate of location-plate 61 along blocking.
Particularly, as shown in Figure 17 a, 17b, the first straight flange 6321 of arm 632 of being now in the light is horizontal, second straight flange 6323 is blocked by location-plate 61, now the upper plate of described first straight flange 6321, location-plate 61 encloses along with the rim of a cup portion of two reflectors the region supplying light outgoing jointly, and headlight module sends distance light light type.Distance light light type figure refers to shown in Figure 22.
As shown in Figure 18 a, 18b, the second straight flange 6323 of arm 632 of being now in the light is horizontal, now the rim of a cup portion of described first straight flange 6321, arc-shaped side 6322, second straight flange 6323 and two reflectors encloses the region for light outgoing jointly, and vehicle front lighting headlight sends dipped beam light type.Dipped beam light type figure refers to shown in Figure 21.
This being fitted to each other by the first straight flange 6321, arc-shaped side 6322 and the second straight flange 6323 and to form upper edge be that the arm 632 that is in the light of curve can control light type more accurately, and make emergent ray meet setting light type.
Described moving arm 633 is provided with poke hole 6331, the output of driving mechanism 62 and the end of shifting shaft 621 are stretched in poke hole 6331, the shifting shaft 621 of described driving mechanism 62 drives the arm 632 that is in the light of light barrier 63 to rotate around rotational axis hole about 631 by poke hole 6331, sends dipped beam light type or distance light light type to make headlight module.
As shown in Figure 17 a ~ 19, the side away from rotational axis hole 631 of described second straight flange 6323 is provided with stopper slot 6324, and the upper plate of described location-plate 61 is along being provided with the positive stop 611 matched with stopper slot 6324 in corresponding position.
As can be seen from Figure 21 and Figure 22, the light type that this headlight module irradiates is not only evenly good-looking, and the data of display and shape are also ideal, have significant advantage compared to the radiation data of existing headlight and shape.Particularly, the light type that this headlight module sends, no matter width, thickness, the uniformity or visual illumination all reach and even have exceeded Standard, and "cut-off"line is clear, drive sensation security reliability high.
Driving mechanism has multiple implementation, and such as can adopt the mode of energising magnetic, the type of drive of this energising magnetic can with reference to prior art.
Below in conjunction with accompanying drawing, the structure of headlight module and the course of work are elaborated.
As shown in Figure 1, high efficiency LED dual chip distance-light all-in-one car headlight module comprises reflector 10, lower reflector 20, radiator 30, lens 40, sleeve 50, mechanism 60 of being in the light, upper fixation spring tab 70a, lower fixation spring tab 70b, upper LED light source 80a, lower LED light source 80b, Power conversion board 90 and fan 100.
Optical system in the present invention then comprises upper LED light source 80a wherein, lower LED light source 80b, upper reflector 10, lower reflector 20, lens 40 and mechanism 60 of being in the light, the function of described mechanism 60 of being in the light realizes controlling light type more accurately on the one hand, on the other hand then for switching far and near light type, meet the light type demand of headlight module.
During work, first upper LED light source 80a is pressed on the upper table surface 31a of radiator locating platform 31 by fixed shell fragment 70a (can adopt stainless steel tension force shell fragment), lower LED light source 80b is pressed on the following table 31b of radiator locating platform 31 by lower fixation spring tab 70b, the bottom of then going up LED light source 80a and lower LED light source 80b abuts on the locating platform 31 of radiator 30 all tightly, thus ensure that the position of LED light source 80a and lower LED light source 80b can not be moved on the one hand, be also conducive on the other hand improving radiating efficiency.
Then upper reflector 10 and lower reflector 20 are arranged on radiator 30 respectively, namely adopt screw successively through the corresponding installing hole on the upper table surface 31a of the upper reflector locating hole 131 on upper reflector location-plate 13 and radiator locating platform 31, thus upper reflector 10 is fixed on the upper table surface 31a of radiator 30 tightly; Same, adopt screw successively through the corresponding installing hole on the following table 31b of the lower reflector locating hole 131 on lower reflector location-plate 23 and radiator locating platform 31, thus lower reflector 20 is fixed on the following table 31b of radiator 30 tightly; And at the fixed installation of the rear side away from sleeve 50 Power conversion board 90 and fan 100 of radiator 30, to be in the light mechanism 60 in the installed in front of radiator 30.
During mounted lens, lens 40 enter from the opening part of holder 52 side of sleeve 50, and the inclined-plane place of limited block 54 is moved to along cylinder inboard wall to barrel front end, continue to move forward along the inclined-plane of limited block 54 and strut the limited block 54 of claw 53 front end in the rear end of lens 40, final lens 40 enters the stop zone between limited block 54 and spacing flange 51, now claw 53 front end is elastic recovery to home position, then namely lens 40 are buckled in sleeve 50 tightly.
The sleeve 50 installing lens 40 is closely fixed together by the buttcover plate 33 of the process Installation hole 56 on holder 52 and fastening screw pit and radiator 30.
Upper LED light source 80a is connected with Power conversion board 90 respectively by winding displacement with lower LED light source 80b, upper LED light source 80a is connected during work, lower LED light source 80b and Power conversion board 90, upper LED light source 80a and the equal electrified light emitting of lower LED light source 80b, and the light that upper LED light source 80a sends reflects through the reflecting surface 111 of upper reflector 10, and the light that lower LED light source 80b sends reflects through the reflecting surface 211 of lower reflector 20, namely LED light source 80a is gone up, the light that lower LED light source 80b sends is first through upper, the primary event of lower reflector, light after reflection projects away after the refraction of lens 40 secondary optics, final upper LED light source 80a, the light that lower LED light source 80b sends is superimposed effectively, and to obtain light type better, brightness and the higher emergent light of light efficiency.
In addition, upper reflector 10 and lower reflector 20 are fixed on after on radiator 30, by the lens of different sleeve connection different sizes, it is inner that whole vehicle front lighting headlight can also use different mounting brackets to be arranged on different car lights, and the structure of flexible transformation can adapt to different headlight for vehicles more.
In sum, the light type that the irradiation optical system in the present invention obtains, no matter width, thickness, the uniformity or visual illumination all reach and even have exceeded Standard, and "cut-off"line is clear, drive sensation security reliability high.
Claims (10)
1. a high efficiency LED dual chip distance-light all-in-one car headlight optical system, comprises LED light source, reflector, lens (40), it is characterized in that:
Described LED light source comprises the upper LED light source (80a) be arranged on locating platform upper table surface (31a) and the lower LED light source (80b) be arranged on locating platform following table (31b);
Described reflector is divided into the upper reflector (10) matched with upper LED light source (80a) and the lower reflector (20) matched with lower LED light source (80b);
Described lens (40) are planoconvex spotlight, comprise the plane plane of incidence (42) and the outer convex surface (41) for light outgoing; Lens (40) are provided with the positioning convex ring (43) protruding convex surface (41) outside outside in the side near the described plane of incidence (42), described outer convex surface (41) coincides with one another with the axis of rotation of described positioning convex ring (43); Be transparent mirror body between the described plane of incidence (42) and the outer convex surface (41) for light outgoing; If the thickness of the outer convex surface (41) of described lens (40) is B, thickness from from outer convex surface (41) top to positioning convex ring (43) side is the front section of B/3 is ellipsoid, and thickness is the hindfoot portion of 2B/3 is parabola; Junction rounding off between the front section of described ellipsoid planar and the hindfoot portion of parabolic shape.
2. high efficiency LED dual chip distance-light all-in-one car headlight optical system according to claim 1, it is characterized in that: described upper reflector (10) comprises reflector cup (11), described upper reflector cup (11) inside is upper reflector reflecting surface (111), from the rim of a cup of upper reflector (10) to the rim of a cup side away from upper reflector (10), described upper reflector reflecting surface (111) is by reflector reflecting surface on be connected in turn first, reflector reflecting surface on second, on 3rd, reflector reflecting surface is formed, reflector reflecting surface on first, reflector reflecting surface on second, on 3rd, reflector reflecting surface is the curved surface of secondary Bezier matching, junction on first on reflector reflecting surface and second between reflector reflecting surface and on second on reflector reflecting surface and the 3rd between reflector reflecting surface is and smoothly transits, and reflector reflecting surface on first, reflector reflecting surface on second, on 3rd, the radius of curvature of reflector reflecting surface reduces successively.
3. high efficiency LED dual chip distance-light all-in-one car headlight optical system according to claim 2, it is characterized in that: described upper reflector cup (11) is provided with the upper reflector stiffener (12) that vertical shape is arranged in rim of a cup side, the bottom of upper reflector cup (11) be provided with outwardly, the upper reflector location-plate (13) of horizontal setting; The plane that the axis of upper reflector stiffener (12) and the axis of upper reflector location-plate (13) are intersected and obtained is upper reflector perspective plane, and the projected length of described upper reflector location-plate (13) on upper reflector perspective plane is greater than the projected length of reflector stiffener (12) on upper reflector perspective plane.
4. high efficiency LED dual chip distance-light all-in-one car headlight optical system according to claim 3, it is characterized in that: set the projected length of reflector location-plate (13) on upper reflector perspective plane as L1, near rim of a cup side and the upper reflector location-plate that length is 2L1/5 is upper reflector location-plate front section, away from rim of a cup side and the upper reflector location-plate that length is L1/5 is upper reflector location-plate hindfoot portion, intermediate length is the upper reflector location-plate of 2L1/5 is upper reflector location-plate stage casing part; Reflector reflecting surface and the corresponding connection of upper reflector location-plate front section on described first, on second, reflector reflecting surface is corresponding with upper reflector location-plate stage casing part connects, and on the 3rd, reflector reflecting surface is corresponding with upper reflector location-plate hindfoot portion connects.
5. high efficiency LED dual chip distance-light all-in-one car headlight optical system according to claim 4, it is characterized in that: described lower reflector (20) comprises lower reflector cup (21), described lower reflector cup (22) inside is lower reflector reflecting surface (222), from the rim of a cup of lower reflector (20) to the rim of a cup side away from lower reflector (20), described lower reflector reflecting surface (222) is by the first time reflector reflecting surface be connected in turn, second time reflector reflecting surface, 3rd time reflector reflecting surface is formed, first time reflector reflecting surface, second time reflector reflecting surface, 3rd time reflector reflecting surface is the curved surface of secondary Bezier matching, junction between first time reflector reflecting surface and second time reflector reflecting surface and between second time reflector reflecting surface and the 3rd time reflector reflecting surface is and smoothly transits, and first time reflector reflecting surface, second time reflector reflecting surface, the radius of curvature of the 3rd time reflector reflecting surface reduces successively.
6. high efficiency LED dual chip distance-light all-in-one car headlight optical system according to claim 5, it is characterized in that: described lower reflector cup (21) is provided with the lower reflector stiffener (22) that vertical shape is arranged in rim of a cup side, the bottom of lower reflector cup (21) be provided with outwardly, the lower reflector location-plate (23) of horizontal setting; The plane that the axis of lower reflector stiffener (22) and the axis of lower reflector location-plate (23) are intersected and obtained is lower reflector perspective plane, and the projected length of described lower reflector location-plate (23) on lower reflector perspective plane is greater than the projected length of lower reflector stiffener (22) on lower reflector perspective plane.
7. high efficiency LED dual chip distance-light all-in-one car headlight optical system according to claim 6, it is characterized in that: the projected length of plate face on lower reflector perspective plane setting reflector location-plate (23) is L, near rim of a cup side and the lower reflector location-plate that length is L2/6 is lower reflector location-plate front section, away from rim of a cup side and the lower reflector location-plate that length is L2/6 is lower reflector location-plate hindfoot portion, intermediate length is the lower reflector location-plate of 2L2/3 is lower reflector location-plate stage casing part; Described first time reflector reflecting surface and the corresponding connection of lower reflector location-plate front section, second time reflector reflecting surface is corresponding with lower reflector location-plate stage casing part to be connected, and the 3rd time reflector reflecting surface is corresponding with lower reflector location-plate hindfoot portion to be connected.
8. high efficiency LED dual chip distance-light all-in-one car headlight optical system according to claim 7, is characterized in that: described upper reflector location-plate (13) is namely descended on upper reflector perspective plane the projected length L1 on reflector perspective plane to be greater than lower reflector location-plate (23) and namely descended projected length L2 on reflector perspective plane on upper reflector perspective plane.
9. high efficiency LED dual chip distance-light all-in-one car headlight optical system according to claim 1, it is characterized in that: native system also comprises the mechanism of being in the light (60) in the beam projecting front being arranged on reflector (10) and lower reflector (20), described mechanism of being in the light (60) comprises the location-plate (61) be fixedly connected with radiator (30), location-plate (61) is provided with light barrier (63) and driving mechanism (62); Described driving mechanism (62) drives light barrier (63) action to send dipped beam light type or distance light light type to make vehicle front lighting headlight.
10. high efficiency LED dual chip distance-light all-in-one car headlight optical system according to claim 9, is characterized in that: described light barrier (63) comprises to be convenient to himself and to form the hinged rotational axis hole (631) coordinated with location-plate (61); Light barrier (63) is respectively arranged with the arm that is in the light (632) for the formation of "cut-off"line and moving arm (633) at the side of rotational axis hole (631);
The described arm that is in the light (632) is in tabular, and tabular is in the light, the plate face of arm (632) is vertical with beam projecting direction, the be in the light upper edge of arm (632) is being provided with the first straight flange (6321) near rotational axis hole (631) side, rotational axis hole (631) side is being provided with the second straight flange (6323), the two is not parallel and linked together by the arc-shaped side (6322) raised up for described first straight flange (6321) and the second straight flange (6323), the peak of described arc-shaped side (6322) gives prominence to the upside in the first straight flange (6321),
Described moving arm (633) is provided with poke hole (6331), the output of driving mechanism (62) and the end of shifting shaft (621) are stretched in poke hole (6331), the shifting shaft (621) of described driving mechanism (62) drives the arm that is in the light (632) of light barrier (63) to rotate up and down around rotational axis hole (631) by poke hole (6331), sends dipped beam light type or distance light light type to make vehicle front lighting headlight.
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| CN201510444438.3A CN104976567B (en) | 2015-07-23 | 2015-07-23 | High efficiency LED dual chip distance-light all-in-one car headlight optical systems |
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