Multi-light-source car lamp

Abstract

The utility model discloses a multi-light-source car lamp which comprises a first light source, a second light source, a third light source, a fourth light source, a light cutting mechanism and a light emitting lens, wherein the first light source and the second light source are arranged on the upper surface of a heat dissipation substrate; the third light source and the fourth light source are arranged above the heat dissipation substrate and are not in contact with the heat dissipation substrate; the first light source is used for emitting floodlight rays, the second light source is used for emitting spotlighting rays, and the third light source and the fourth light source are used for emitting supplementary lighting rays. The light emitting lens comprises a first lens part used for emitting light of the first light source, a second lens part used for emitting light of the second light source, a third lens part used for emitting light of the third light source and a fourth lens part used for emitting light of the fourth light source, the third light source is a laser light source, and the fourth light source is an LED light source; the number of at least one of the third light sources and the fourth light sources is two. The multi-light-source car lamp can give consideration to brightness and heat dissipation effect at the same time, and is high in brightness and fast in heat dissipation.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile lighting, and more specifically, to a multi-light source automobile lamp. Background Art

[0002] At present, most of the car headlights on the market have the low beam light source installed above the heat dissipation substrate and the high beam light source installed below the heat dissipation substrate, and the switching between the high and low beam modes is achieved through the solenoid valve light cutter. In order to ensure the lighting effect, the low beam light source and the high beam light source of this car headlight usually need to be very close, but when they are very close, the heat dissipation substrate needs to be made as thin as possible, which will lead to poor heat dissipation effect of the heat dissipation substrate, resulting in the heat of the low beam light source and the high beam light source cannot be dissipated in time, affecting the service life of the low beam light source and the high beam light source, and limiting the increase in the power of the low beam light source and the high beam light source. In addition, the existing car headlights still have the problem of insufficient brightness, especially when driving at high speed at night, because the insufficient brightness of the lights can easily cause traffic accidents. Utility Model Content

[0003] The utility model aims to overcome at least one defect of the above-mentioned prior art and provide a multi-light source headlight, which can take into account both brightness and heat dissipation effect, and has high brightness and fast heat dissipation in both high and low beam modes.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A multi-light source vehicle lamp comprises a heat dissipation substrate, a first light source and a second light source arranged on the upper surface of the heat dissipation substrate, a third light source and a fourth light source arranged above the heat dissipation substrate and not in contact with the heat dissipation substrate, a light cutting mechanism for realizing switching between high and low beam modes, and a light emitting lens for emitting light, wherein the first light source is used to emit floodlight, the second light source is used to emit spotlight, the third light source and the fourth light source are used to emit fill light, the light emitting lens comprises a first lens portion for emitting light from the first light source, a second lens portion for emitting light from the second light source, a third lens portion for emitting light from the third light source, and a fourth lens portion for emitting light from the fourth light source, the first lens portion and the second lens portion are arranged along the width direction of the multi-light source vehicle lamp, the third light source is a laser light source, the fourth light source is an LED light source, and at least one of the third light source and the fourth light source is two.

[0006] In one embodiment, the number of the fourth light source is 1, the number of the third light sources is 2, the number of the third lens portions is 2, and the fourth light source is located between two of the third light sources.

[0007] In one embodiment, the curved surface area of ​​the fourth lens portion is larger than the curved surface area of ​​the third lens portion and smaller than the curved surface area of ​​the first lens portion, the first lens portion and the second lens portion are of the same size, the first lens portion and the second lens portion are symmetrically arranged relative to the fourth lens portion, and the two third lens portions are symmetrically arranged relative to the fourth lens portion.

[0008] In one embodiment, the multi-light source vehicle lamp includes a heat sink located above the heat dissipation substrate, a mounting platform is provided on the side of the heat sink, the fourth light source is arranged on the mounting platform, a mounting hole is provided inside the heat sink, and the third light source is arranged in the mounting hole.

[0009] In one embodiment, the third light source includes a laser, a collimating lens, a diffuser, a focusing lens, a phosphor sheet and a small lens arranged in sequence along the optical path of the laser, the collimating lens is used to collimate the laser light emitted by the laser, the diffuser is used to homogenize the laser light, the focusing lens is used to focus the laser light onto the phosphor sheet, the phosphor sheet is used to convert at least part of the laser light into converted laser light, and the small lens is used to emit a mixed light of the converted laser light and the unconverted laser light.

[0010] In one embodiment, the third light source further includes a first sleeve for mounting a collimating lens and a diffuser, a second sleeve for mounting a focusing lens and a phosphor sheet, a third sleeve for mounting a small lens, and a pressing sheet for pressing the small lens, the first sleeve, the second sleeve, and the third sleeve are all located in the mounting hole, and the pressing sheet is located on the side of the heat sink and close to the light output lens.

[0011] In one embodiment, the number of the fourth light sources is 2, the number of the third light source is 1, and the third light source is located between two of the fourth light sources.

[0012] In one embodiment, the light cutting mechanism includes a light cutting plate and a driving member for driving the light cutting plate to switch between high and low beam modes, the light cutting plate includes a first light cutting plate corresponding to the first light source and a second light cutting plate corresponding to the second light source, and when the light cutting plate is located in the light path of the first light source and the second light source, the first light cutting plate cuts the first light source into a low beam light type, and the second light cutting plate cuts the second light source into a low beam light type.

[0013] In one embodiment, a plane parallel to the surface of the heat dissipation substrate and passing through the vertices of the first lens portion and the second lens portion is taken as a reference plane, and an area of ​​a curved surface of the first lens portion and the second lens portion below the reference plane is larger than an area of ​​a curved surface above the reference plane.

[0014] In one embodiment, the surfaces of the first lens portion and the second lens portion close to the third lens portion and the fourth lens portion are curved surfaces, and the curved surfaces are concave toward the bottom of the multi-light source headlight, and the first lens portion, the second lens portion, the third lens portion and the fourth lens portion are closely arranged.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the first light source for emitting floodlight and the second light source for emitting spotlight are both arranged on the upper surface of the heat dissipation substrate in the technical solution, the distance between the first light source and the second light source can be larger, and the thickness of the heat dissipation substrate can be increased, which is beneficial to the heat dissipation of the first light source and the second light source and the improvement of the power of the two light sources, the first light source emits floodlight via the first lens portion, and the second light source emits spotlight via the second lens portion, the first lens portion and the second lens portion are arranged along the width direction of the multi-light source headlight, and the light of the first light source and the second light source can be blocked very little by the light cutting mechanism in the low beam mode, and the obtained light irradiation range is wide and the brightness is high, the technical solution also arranges the third light source and the fourth light source above the heat dissipation substrate, and the third light source is a laser light source, and at least one of the third light source and the fourth light source is 2, then the fill light source has at least 3 and at least one of them is a laser light source, so that the high beam lighting effect can be further enhanced, and the brightness in the high beam mode can be further significantly improved, achieving ultra-high brightness and ultra-long-distance irradiation effects, and the entire multi-light source headlight has high light output efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an exploded view of the multi-light source vehicle lamp according to Example 1 of the utility model.

[0017] Figure 2 This is an assembly diagram of the multi-light source vehicle lamp according to Example 1 of the utility model.

[0018] Figure 3 It is an exploded diagram of the heat sink and the third and fourth light sources of Example 1 of the utility model.

[0019] Figure 4 for Figure 2 Another structural diagram.

[0020] Figure 5 This is an assembly diagram of the multi-light source vehicle lamp according to Example 2 of the utility model.

[0021] Figure 6 for Figure 5 Another structural diagram.

[0022] Figure 7 It is an exploded view of the heat sink and the third and fourth light sources of Example 3.

[0023] Description of reference numerals: 110, heat dissipation substrate; 120, vertical bracket; 210, first LED light emitter; 220, first reflective cup; 310, second LED light emitter; 320, second reflective cup; 400, third light source; 401, laser; 402, collimating lens; 403, diffuser; 404, focusing lens; 405, phosphor sheet; 406, small lens; 407, first sleeve; 408, second sleeve; 409, third sleeve ; 410, pressing plate; 500, fourth light source; 600, light cutting mechanism; 610, light cutting plate; 611, first light cutting plate; 612, second light cutting plate; 620, driving member; 710, light output lens; 720, light output lens sleeve; 800, heat sink; 801, mounting table; 802, mounting hole; 910, first fan; 920, second fan; 930, heat pipe cooling assembly; 931, heat pipe; 932, heat sink; 933, radiator. DETAILED DESCRIPTION

[0024] The drawings of the present invention are only used for illustrative purposes and cannot be construed as limiting the present invention. In order to better illustrate the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0025] Example 1

[0026] like Figures 1 to 4 As shown, the present embodiment discloses a multi-light source vehicle lamp, comprising a heat dissipation substrate 110, a first light source and a second light source arranged on the upper surface of the heat dissipation substrate 100, a third light source 400 and a fourth light source 500 arranged above the heat dissipation substrate 110 and not in contact with the heat dissipation substrate 110, a light cutting mechanism 600 for realizing high and low beam mode switching, and a light emitting lens 710 for emitting light, wherein the first light source is used to emit floodlight, the second light source is used to emit spotlight, the third light source 400 and the fourth light source 500 are used to emit fill light, and the light emitting lens 710 is used to emit a plurality of light sources, wherein the plurality of light sources are arranged on the upper surface of the heat dissipation substrate 110, and the plurality of light sources are arranged on the upper surface of the heat dissipation substrate 110. The optical lens 710 includes a first lens portion 711 for emitting light from a first light source, a second lens portion 712 for emitting light from a second light source, a third lens portion 713 for emitting light from a third light source 400, and a fourth lens portion 714 for emitting light from a fourth light source 500. The first lens portion 711 and the second lens portion 712 are arranged along the width direction of the multi-light source headlight, the third light source 400 is a laser light source, the fourth light source 500 is an LED light source, and at least one of the third light source 400 and the fourth light source 500 is 2.

[0027] To make the description clearer, the length, width and height directions of the multi-light source headlights are marked, such as Figure 1 , Figure 2 As shown, the light emitting direction parallel to the multi-light source headlight is the length direction of the multi-light source headlight, represented by x; the direction parallel to the surface of the heat dissipation substrate 110 and perpendicular to the length direction is the width direction of the multi-light source headlight, represented by y; the direction perpendicular to x and y is the height direction of the multi-light source headlight, represented by z. The tail of the multi-light source headlight described in this application refers to the end opposite to the light emitting lens 710 of the multi-light source headlight, and the top of the multi-light source headlight described in this application refers to the top of the heat dissipation substrate 110, and the bottom refers to the bottom of the heat dissipation substrate 110. The floodlight described in this application refers to light with a relatively large irradiation range, which can meet the requirements of wide-angle irradiation of low beam; the spotlight described in this application refers to light with a relatively small irradiation range but relatively high illumination.

[0028] In this embodiment, the first light source for emitting floodlight and the second light source for emitting spotlight are both arranged on the upper surface of the heat dissipation substrate 110. The distance between the first light source and the second light source can be larger, and the thickness of the heat dissipation substrate 110 can be increased, which is beneficial to the heat dissipation of the first light source and the second light source and the improvement of the power of the two light sources. The first light source emits floodlight via the first lens portion 711, and the second light source emits spotlight via the second lens portion 712. The first lens portion 711 and the second lens portion 712 are arranged along the width direction of the multi-light source headlight. In the low beam mode, the light cutting mechanism 600 is arranged on the first lens portion 711. The light of the light source and the second light source can be blocked very little, and the obtained light illumination range is wide and the brightness is high. The technical solution also arranges a third light source 400 and a fourth light source 500 above the heat dissipation substrate 110, and the third light source 400 is a laser light source. At least one of the third light source 400 and the fourth light source 500 is 2, and then there are at least 3 fill light sources and at least one of them is a laser light source. In this way, the high beam lighting can be further enhanced, and the brightness can be further significantly improved in the high beam mode, achieving ultra-high brightness and ultra-long-distance illumination effects, and the entire multi-light source headlight has high light output efficiency.

[0029] Furthermore, in this embodiment, the number of the fourth light source 500 is 1, the number of the third light sources 400 is 2, the number of the third lens portions 713 is 2, and the fourth light source 500 is located between the two third light sources 400. In this way, a fill light source having an LED light source in the middle of the top of the multi-light source headlight and two laser light sources on both sides is formed. The fill light scheme of designing three light sources and two of the laser light sources can significantly improve the brightness of the multi-light source headlight in the high beam mode and significantly improve the quality of the headlight.

[0030] Furthermore, the curved surface area of ​​the fourth lens portion 714 is larger than the curved surface area of ​​the third lens portion 713 and smaller than the curved surface area of ​​the first lens portion 711. The first lens portion 711 and the second lens portion 712 are of the same size. The first lens portion 711 and the second lens portion 712 are symmetrically arranged relative to the fourth lens portion 714. The two third lens portions 713 are symmetrically arranged relative to the fourth lens portion 714. Such a design can, on the one hand, maximize the light effect and, on the other hand, enhance the appearance of the headlight.

[0031] Furthermore, the multi-light source vehicle lamp of this embodiment includes a heat sink 800 located above the heat dissipation substrate 110, a mounting platform 801 is provided on the side of the heat sink 800, the fourth light source 500 is arranged on the mounting platform 801, a mounting hole 802 is provided inside the heat sink 800, and the third light source 400 is arranged in the mounting hole 802. More specifically, the number of the mounting holes 802 is 2, which are respectively arranged on both sides of the mounting platform 801.

[0032] Specifically, the third light source 400 includes a laser 401, a collimating lens 402, a diffuser 403, a focusing lens 404, a phosphor sheet 405 and a small lens 406 arranged in sequence along the optical path of the laser 401, wherein the collimating lens 402 is used to collimate the laser light emitted by the laser 401, the diffuser 403 is used to homogenize the laser light, the focusing lens 404 is used to focus the laser light onto the phosphor sheet 405, the phosphor sheet 405 is used to convert at least part of the laser light into a converted laser light, and the small lens 406 is used to emit a mixed light of the converted laser light and the unconverted laser light. The third light source 400 described in this embodiment adopts a direct-type laser module, which is small in size and convenient to install. In other embodiments, a reflective laser module structure can also be used.

[0033] Further, the third light source 400 also includes a first sleeve 407 for installing a collimating lens 402 and a diffuser 403, a second sleeve 408 for installing a focusing lens 404 and a phosphor sheet 405, a third sleeve 409 for installing a small lens 406, and a pressing piece 410 for pressing the small lens 406. The first sleeve 407, the second sleeve 408, and the third sleeve 409 are all located in the mounting hole 802, and the pressing piece 410 is located on the side of the heat sink 800 and close to the side of the light-emitting lens 710. The design of the three sleeves can facilitate the rapid installation and positioning of the third light source 400, and the design of the pressing piece 410 can be used to fix the outermost small lens 406. Furthermore, the pressing piece 410 is locked on the side of the heat sink 800 by screws. In other embodiments, dispensing or other fixing methods can also be used.

[0034] Furthermore, in this embodiment, the first light source includes a first LED illuminator 210 and a first reflective cup 220 for collecting light from the first LED illuminator 210, and the second light source includes a second LED illuminator 310 and a second reflective cup 320 for collecting light from the second LED illuminator 310. The collection efficiency of the first reflective cup 220 for the first LED illuminator 210 is not less than 80%, and the collection efficiency of the second reflective cup 320 for the second LED illuminator 310 is not less than 80%. The collection efficiency of the first reflective cup and the second reflective cup of this technical solution is not less than 80%, and can even reach not less than 90%, and the collection efficiency is high. More specifically, the first reflective cup 210 covers the first LED illuminator 220 and is a symmetrical structure relative to the first LED illuminator 210, the second reflective cup 320 covers the second LED illuminator 310 and is a symmetrical structure relative to the second LED illuminator 310, and the size of the first reflective cup 220 is larger than the size of the second reflective cup 320. More specifically, the first reflective cup 210 and the second reflective cup 220 are both ellipsoid cups. That is, the first reflective cup 220 and the second reflective cup 320 described in this embodiment are single-cup ellipsoid cup structures, and the first LED light source 210 and the second LED light source 220 are respectively arranged at the focal positions of the first reflective cup 220 and the second reflective cup 320.

[0035] Furthermore, the distance between the first LED illuminator 210 and the light output lens 710 is different from the distance between the second LED illuminator 310 and the light output lens 710. This arrangement allows the two LED illuminators to be staggered in the length direction of the headlight, with a larger spacing, which is more conducive to heat dissipation of the light source. In addition, it can also better achieve floodlighting and spotlighting lighting effects.

[0036] Furthermore, the first LED illuminant 210 and the second LED illuminant 220 each include an LED chip covered with a light-emitting layer and a copper plate for mounting the chip.

[0037] Furthermore, the light cutting mechanism 600 of this embodiment includes a light cutting piece 610 and a driving member 620 for driving the light cutting piece 610 to switch between high and low beam modes, the light cutting piece 610 includes a first light cutting piece 611 corresponding to the first light source and a second light cutting piece 612 corresponding to the second light source, and when the light cutting piece 610 is located in the optical path of the first light source and the second light source, the first light cutting piece 611 cuts the first light source into a low beam light type, and the second light cutting piece 612 cuts the second light source into a low beam light type. Specifically, the driving member 620 is a solenoid valve.

[0038] Furthermore, in the present embodiment, the light-emitting surfaces of the first LED illuminant 210 and the second LED illuminant 310 are not higher than the vertices of the first light cutter 611 and the second light cutter 612. By setting the light-emitting surfaces of the first LED illuminant 210 and the second LED illuminant 310 to be not higher than the vertices of the first light cutter 611 and the second light cutter 612, only a very small portion of the light from the first light source and the second light source can be blocked by the light cutting mechanism 600, and the light can basically be emitted from all the light emitting surfaces of the first lens portion 711 and the second lens portion 712, and the light emitting efficiency is high. The vertices of the first light cutter 611 and the second light cutter 612 described in the present invention refer to the highest point at the transition between two positions with different light cutter heights.

[0039] Furthermore, taking the plane parallel to the surface of the heat dissipation substrate 110 and passing through the vertices of the first lens portion 711 and the second lens portion 712 as the reference plane, the area of ​​the curved surface of the first lens portion 711 and the second lens portion 712 below the reference plane is greater than the area of ​​the curved surface above the reference plane. With such a design, the light extraction efficiency of the first light source and the second light source is higher. In this embodiment, the vertices of the first lens portion 711 and the second lens portion 712 refer to the convex points at the edge of the light extraction surfaces of the first lens portion 711 and the second lens portion 712 in the length direction of the multi-light source headlight.

[0040] The surfaces of the first lens portion 711 and the second lens portion 712 close to the third lens portion 713 and the fourth lens portion 714 are curved surfaces, and the curved surfaces are concave toward the bottom of the multi-light source headlight, and the first lens portion 711, the second lens portion 712, the third lens portion 713 and the fourth lens portion 714 are closely arranged. With such a design, the comprehensive light extraction efficiency of the first lens portion 711, the second lens portion 712, the third lens portion 713 and the fourth lens portion 714 can be maximized.

[0041] Furthermore, the multi-light source headlight of this embodiment further includes a heat dissipation mechanism, which includes a first fan 910 disposed at the rear of the multi-light source headlight, a second fan 920 disposed above the heat dissipation substrate 110 and located inside the heat dissipation body 800, and a heat pipe heat dissipation assembly 930 disposed on the heat dissipation substrate. More specifically, the first fan blows air into the multi-light source headlight, and the second fan 920 exhausts air to the outside of the multi-light source headlight. A hollow hole for exhausting air is provided on the top of the heat dissipation body 800.

[0042] Furthermore, the second fan 920 is tilted relative to the heat dissipation substrate 110 and tilted upward on the side close to the light-emitting lens 710. With such a design, the heat dissipation effect is better, because: when the gas blown in by the first fan 910 encounters the first reflective cup 220 and the second reflective cup 320, the direction of the gas will change, and it will tilt upward to a certain extent. The tilted setting of the second fan 920 can make the second fan 920 generally face the first reflective cup 220 and the second reflective cup 320, which can better form air circulation and facilitate the faster discharge of the internal hot air flow; on the other hand, the light cutting mechanism 600 also generates heat, and the second fan 920 is designed in this way so that it can also be generally facing the light cutting mechanism 600, which can more effectively discharge the local heat of the light cutting mechanism 600, thereby making the overall heat dissipation effect of the multi-light source headlight better.

[0043] Further, the heat pipe heat dissipation assembly 930 includes a heat pipe 931, a connection block 932 connected to the heat pipe 931, and a radiator 933. Specifically, a groove for accommodating a part of the structure of the heat pipe 931 is provided on the connection block 932, and the connection block 932 and the heat pipe 931 are both in contact with the upper surface of the copper plate. The design of the groove facilitates the heat pipe 931 and the connection block 932 to contact the copper plate. The heat pipe 931 has a high thermal conductivity and can quickly absorb and conduct heat. The heat pipe 931 directly contacts the copper plate and can directly and quickly conduct heat, so that the heat dissipation efficiency is high. The design of the connection block 93 can increase the contact area between the heat pipe heat dissipation assembly 930 and the copper plate, and improve the heat dissipation effect by increasing the heat conduction surface. Further, the heat pipe 931 is welded in the groove, and the welding method can make the connection block 932 and the heat pipe 931 tightly connected together. The radiator described in this embodiment can be a plug-in radiator, a copper radiator, a high-density tooth radiator or a profile radiator. The heat pipe is also connected to the radiator by welding.

[0044] In the prior art, the low beam light source and the high beam light source are mostly located on the upper and lower sides of the heat dissipation substrate, respectively, and it is impossible to design a direct heat pipe heat dissipation component to be connected to the copper plates of the low beam light source and the high beam light source at the same time. In this embodiment, since the first light source and the second light source are both on the upper surface of the heat dissipation substrate 110, that is, both are located on the same side of the heat dissipation substrate 110, the heat pipe heat dissipation component is directly in contact with the copper plate, and the heat dissipation efficiency of the light source is good.

[0045] Furthermore, the multi-light source vehicle lamp of this embodiment further includes a vertical bracket 120 perpendicular to the heat dissipation substrate 110. The vertical bracket 120 can be fixed to the heat dissipation substrate 110 by screws, or can be integrally formed with the heat dissipation substrate 110.

[0046] Furthermore, the multi-light source vehicle lamp of this embodiment further comprises a lens sleeve 720 for mounting the light emitting lens 710. Specifically, the lens sleeve 720 is a cylindrical sleeve, and the corresponding light incident surface of the light emitting lens 710 is circular.

[0047] Furthermore, the heat sink 800 , the lens sleeve 720 and the light cutting assembly 600 are all arranged on the vertical bracket 120 .

[0048] Example 2

[0049] like Figure 5 , Figure 6 As shown, the present embodiment discloses a multi-light source headlight, which also includes a heat dissipation substrate, a first light source and a second light source arranged on the upper surface of the heat dissipation substrate, a third light source and a fourth light source arranged above the heat dissipation substrate and not in contact with the heat dissipation substrate, a light cutting mechanism for realizing the switching of high and low beam modes, and a light emitting lens for emitting light, wherein the first light source is used to emit floodlight, the second light source is used to emit spotlight, the third light source and the fourth light source are used to emit fill light, the light emitting lens includes a first lens portion for emitting light from the first light source, a second lens portion for emitting light from the second light source, a third lens portion for emitting light from the third light source, and a fourth lens portion for emitting light from the fourth light source, the first lens portion and the second lens portion are arranged along the width direction of the multi-light source headlight, the third light source is a laser light source, the fourth light source is an LED light source, the number of the third light sources is 2, and the number of the fourth light source is 1; it also includes a lens sleeve 720 for mounting the light emitting lens 710, and the top and bottom of the light emitting lens 710 and the lens sleeve 720 of the multi-light source headlight are both horizontally arranged. The lens sleeve 720 of the second embodiment is not a standard cylindrical setting, but is similar to replacing a part of the cylindrical curved surface with a plane, forming a cylinder with a top surface and a bottom surface as planes and a surface connected to the top surface and the bottom surface as a curved surface, and the shape of the light-emitting lens 710 is adaptively adjusted accordingly. Compared with the first embodiment, the second embodiment is basically the same except that the light-emitting lens 710 and the lens sleeve 720 are different, and no further description is given here. The overall volume of the multi-light source headlight described in the second embodiment is slightly smaller than that of the multi-light source headlight described in the first embodiment, and can be adapted to more types of vehicles.

[0050] Example 3

[0051] This embodiment 3 discloses a multi-light source vehicle lamp, which also includes a heat dissipation substrate, a first light source and a second light source arranged on the upper surface of the heat dissipation substrate, a third light source and a fourth light source arranged above the heat dissipation substrate and not in contact with the heat dissipation substrate, a light cutting mechanism for realizing switching between high and low beam modes, and a light emitting lens for emitting light, wherein the first light source is used to emit floodlight, the second light source is used to emit spotlight, the third light source and the fourth light source are used to emit fill light, the light emitting lens includes a first lens portion for emitting light from the first light source, a second lens portion for emitting light from the second light source, a third lens portion for emitting light from the third light source, and a fourth lens portion for emitting light from the fourth light source, the first lens portion and the second lens portion are arranged along the width direction of the multi-light source vehicle lamp, the third light source is a laser light source, the fourth light source is an LED light source, the number of the third light sources is 1, and the number of the fourth light sources is 2.

[0052] like Figure 7 As shown, compared with Example 1, the difference between this embodiment 3 is that the number and position of the third light source 400 and the fourth light source 500 are different. In this embodiment, the number of the third light source 400 is 1, which is located in the middle position close to the top, and the number of the fourth light sources 500 is 2, which are respectively located on both sides of the third light source 400. Compared with Example 1, except that the number and position of the third light source 400 and the fourth light source 500 are different, and the position and number of the mounting holes and mounting platforms for mounting the third light source 400 and the fourth light source 500 are different, the other structures of this embodiment 3 are basically the same, and no further description is given here.

[0053] Obviously, the above embodiments of the utility model are only examples for clearly explaining the technical solution of the utility model, and are not intended to limit the specific implementation methods of the utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the claims of the utility model shall be included in the protection scope of the claims of the utility model.

Claims

1. A multi-light source vehicle lamp, characterized in that: The multi-light source vehicle lamp comprises a heat dissipation substrate, a first light source and a second light source arranged on the upper surface of the heat dissipation substrate, a third light source and a fourth light source arranged above the heat dissipation substrate and not in contact with the heat dissipation substrate, a light cutting mechanism for realizing switching between high and low beam modes, and a light emitting lens for emitting light, wherein the first light source is used to emit floodlight, the second light source is used to emit spotlight, the third light source and the fourth light source are used to emit fill light, the light emitting lens comprises a first lens portion for emitting light from the first light source, a second lens portion for emitting light from the second light source, a third lens portion for emitting light from the third light source and a fourth lens portion for emitting light from the fourth light source, the first lens portion and the second lens portion are arranged along the width direction of the multi-light source vehicle lamp, the third light source is a laser light source, the fourth light source is an LED light source, and at least one of the third light source and the fourth light source is 2.

2. The multi-light source vehicle lamp according to claim 1, characterized in that: The number of the fourth light source is 1, the number of the third light sources is 2, the number of the third lens portions is 2, and the fourth light source is located between two of the third light sources.

3. The multi-light source vehicle lamp according to claim 2, characterized in that: The curved surface area of ​​the fourth lens portion is larger than that of the third lens portion and smaller than that of the first lens portion. The first lens portion and the second lens portion are of the same size. The first lens portion and the second lens portion are symmetrically arranged relative to the fourth lens portion. The two third lens portions are symmetrically arranged relative to the fourth lens portion.

4. The multi-light source vehicle lamp according to claim 1, characterized in that: The multi-light source vehicle lamp comprises a heat sink located above the heat dissipation substrate, a mounting platform is provided on the side of the heat sink, the fourth light source is arranged on the mounting platform, a mounting hole is provided inside the heat sink, and the third light source is arranged in the mounting hole.

5. The multi-light source vehicle lamp according to claim 4, characterized in that: The third light source includes a laser, a collimating lens, a diffuser, a focusing lens, a phosphor sheet and a small lens arranged in sequence along the optical path of the laser, the collimating lens is used to collimate the laser light emitted by the laser, the diffuser is used to homogenize the laser light, the focusing lens is used to focus the laser light onto the phosphor sheet, the phosphor sheet is used to convert at least part of the laser light into converted laser light, and the small lens is used to emit a mixed light of the converted laser light and the unconverted laser light.

6. The multi-light source vehicle lamp according to claim 5, characterized in that: The third light source also includes a first sleeve for mounting a collimating lens and a diffuser, a second sleeve for mounting a focusing lens and a phosphor sheet, a third sleeve for mounting a small lens, and a pressing sheet for pressing the small lens. The first sleeve, the second sleeve, and the third sleeve are all located in the mounting hole, and the pressing sheet is located on the side of the heat sink and close to the light output lens.

7. The multi-light source vehicle lamp according to claim 1, characterized in that: The number of the fourth light sources is 2, the number of the third light source is 1, and the third light source is located between two of the fourth light sources.

8. The multi-light source vehicle lamp according to any one of claims 1 to 7, characterized in that: The light cutting mechanism includes a light cutting plate and a driving member for driving the light cutting plate to switch between high and low beam modes, the light cutting plate includes a first light cutting plate corresponding to the first light source and a second light cutting plate corresponding to the second light source, and when the light cutting plate is located in the light path of the first light source and the second light source, the first light cutting plate cuts the first light source into a low beam light type, and the second light cutting plate cuts the second light source into a low beam light type.

9. The multi-light source vehicle lamp according to any one of claims 1 to 7, characterized in that: Taking a plane parallel to the surface of the heat dissipation substrate and passing through the vertices of the first lens portion and the second lens portion as a reference plane, the area of ​​the curved surface of the first lens portion and the second lens portion below the reference plane is larger than the area of ​​the curved surface above the reference plane.

10. The multi-light source vehicle lamp according to claim 9, characterized in that: The surfaces of the first lens portion and the second lens portion close to the third lens portion and the fourth lens portion are curved surfaces, and the curved surfaces are concave toward the bottom direction of the multi-light source headlight. The first lens portion, the second lens portion, the third lens portion and the fourth lens portion are closely arranged.

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