CN110939911A

CN110939911A - High beam and low beam integrated vehicle headlight

Info

Publication number: CN110939911A
Application number: CN201911394611.8A
Authority: CN
Inventors: 龙涛; 黄帆; 邹诚; 孙振国
Original assignee: Super Vision Laser Technology (suzhou) Co Ltd
Current assignee: Super Vision Laser Technology (suzhou) Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-03-31

Abstract

The invention discloses a high-beam and low-beam integrated vehicle headlamp, which comprises a heat dissipation support, a low-beam light source group and a high-beam light source group which are respectively arranged at the upper side and the lower side of the heat dissipation support, a low-beam light reflecting bowl corresponding to the low-beam light source group and a high-beam light reflecting bowl corresponding to the high-beam light source group, wherein the low-beam light source group comprises an excitation light unit and a wavelength conversion unit, the excitation light unit comprises a laser source unit, a first LED light source unit and a control switch connected with the laser source unit, the position of the wavelength conversion unit corresponds to the focus of the low-beam light reflecting bowl, the high-beam light source group comprises a second LED light source unit, and the second LED light source unit. The laser source unit and the first LED light source unit are arranged in the exciting light unit, wherein the laser beam emitted by the laser source unit has the characteristics of good collimation and energy concentration, and can form a high-brightness point light source, so that the central illumination of a near light field is improved, and the laser source unit is opened or closed through a control switch according to the actual situation, so that the driving requirement of a vehicle can be met in real time.

Description

High beam and low beam integrated vehicle headlight

Technical Field

The invention relates to the technical field of illumination, in particular to a vehicle headlamp integrating high beam and low beam.

Background

With the development of semiconductor technology, LED (Light Emitting Diode) Light sources have the advantages of high efficiency, energy saving, environmental protection, low cost, long service life, etc., and are gradually replacing traditional incandescent lamps and energy saving lamps, becoming a general illumination Light source.

In the existing LED automobile headlamp, an LED light source is positioned at the focus of an automobile lamp reflector, and light beams emitted by the LED light source are collected by the automobile lamp reflector and distributed by a rear-end optical system (comprising a baffle, a lens and the like) to finally project required far and near light field distribution. The light distribution of the dipped beam of the vehicle lamp can meet the requirement generally, however, under certain special conditions, such as narrow rural areas or when the vehicle meets on rugged road sections, the dipped beam illumination cannot meet the requirement due to the limitation of the brightness of the current LED light source.

Disclosure of Invention

The invention relates to a high beam and low beam integrated vehicle headlamp, which aims to solve the problem of insufficient low beam brightness in the prior art.

In order to solve the technical problems, the technical scheme of the invention is as follows:

a high beam and low beam integrated vehicle headlight comprises a heat radiation support, a low beam light source group and a high beam light source group which are respectively arranged at the upper side and the lower side of the heat radiation support, a low beam reflector corresponding to the low beam light source group, a high beam reflector corresponding to the high beam light source group, a movable light screen and a lens which are arranged at the front end of the heat radiation support, and a heat radiation sheet group arranged at the rear end of the heat radiation support, the low-beam light source group comprises an excitation light unit and a wavelength conversion unit, the excitation light unit comprises a laser source unit, a first LED light source unit and a control switch connected with the laser source unit, the position of the wavelength conversion unit corresponds to the focus of the near-light reflecting bowl, a laser beam emitted by the laser source unit and a light beam emitted by the first LED light source unit are respectively projected onto the wavelength conversion unit and excite fluorescence, and the fluorescence is reflected by the near-light reflecting bowl and then emitted in a designated direction; the high beam light source group comprises a second LED light source unit, and the second LED light source unit comprises a plurality of second LED light sources.

Further, the light that short-distance beam light source group sent passes through the parallel outgoing of oblique below of following after the reflection of short-distance beam reflector, the light that the high beam light source group sent passes through the parallel outgoing of oblique top of following after the reflection of high beam reflector.

Furthermore, the second LED light sources are packaged into a whole by taking the focus of the high-beam reflecting bowl as the center.

Further, laser source unit and wavelength conversion unit divide and locate the both sides of passing light reflector, be equipped with on the passing light reflector and be used for seeing through the logical light portion of laser beam.

Further, the laser source unit further includes one or a combination of two or more of a collimating unit, a beam angle changing unit, and a focusing unit, and the collimating unit, the beam angle changing unit, and the focusing unit are disposed along the optical path.

Further, the laser source unit comprises one or more laser sources, and the light-passing part is provided with one or more laser sources.

Further, the first LED light source unit includes a substrate and at least one LED chip, the wavelength conversion unit includes at least one phosphor layer, the phosphor layer is disposed on the LED chip or on the substrate, one phosphor layer is disposed above each LED chip, and the lower portion is disposed on the substrate.

Furthermore, the near-light reflecting bowl is a curved mirror, the wavelength conversion unit is located at a focus of the curved mirror, the LED chip and the fluorescent powder layer are respectively provided with one, and the laser beam is projected to the center of the upper surface of the fluorescent powder layer.

Furthermore, the near-beam reflector is a curved mirror, the number of the LED chips and the number of the fluorescent powder layers are multiple, the fluorescent powder layers are closely arranged and located at the focus of the curved mirror, one fluorescent powder layer corresponds to each upper portion of each LED chip, a reflection interface is arranged between each LED chip and the substrate, and the laser beams are projected onto each fluorescent powder layer or one fluorescent powder layer.

Further, the dipped beam reflector is formed by splicing a plurality of curved mirrors, the LED chips and the fluorescent powder layer are respectively provided with a plurality of and a plurality of fluorescent powder layer gaps, each fluorescent powder layer is positioned at the focus of one corresponding curved mirror, each fluorescent powder layer corresponds to one upper part of the LED chips, a reflection interface is arranged between the LED chips and the substrate, and the laser beam is projected onto each fluorescent powder layer or one of the fluorescent powder layers.

The invention provides a high-low light integrated vehicle headlamp, which comprises a heat dissipation bracket, a low-beam light source group and a high-beam light source group which are respectively arranged at the upper side and the lower side of the heat dissipation bracket, a low-beam light reflecting bowl corresponding to the low-beam light source group, a high-beam light reflecting bowl corresponding to the high-beam light source group, a movable light shielding plate and a lens which are arranged at the front end of the heat dissipation bracket, and a heat dissipation plate group arranged at the rear end of the heat dissipation bracket, wherein the low-beam light source group comprises an exciting light unit and a wavelength conversion unit, the exciting light unit comprises a laser source unit, a first LED light source unit and a control switch connected with the laser source unit, the position of the wavelength conversion unit corresponds to the focus of the low-beam light reflecting bowl, a laser beam emitted by the laser source unit and a light beam emitted by the first LED light source unit are respectively projected, the fluorescence is reflected by the near light reflecting bowl and then emitted in a specified direction; the high beam light source group comprises a second LED light source unit, and the second LED light source unit comprises a plurality of second LED light sources. Set up laser source unit and first LED light source unit in the exciting light unit, wherein the laser beam that laser source unit launched has that the collimation is good, and the characteristic that the energy is concentrated can form the pointolite of hi-lite to improve the central illuminance of nearly light field, open or close laser source unit through control switch according to actual, can satisfy the requirement of going of vehicle in real time, convenient to use.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a high beam and low beam integrated vehicle headlamp of the present invention;

FIG. 2 is a schematic structural diagram of a high beam light source assembly according to an embodiment of the present invention;

FIG. 3 is a schematic view of one embodiment of the present invention in which a laser beam is projected onto the upper surface of a wavelength conversion unit;

FIG. 4 is a schematic structural diagram of a wavelength conversion unit according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another embodiment of a wavelength conversion unit according to the present invention;

fig. 6 is a schematic structural diagram of a low beam reflector comprising a plurality of curved mirrors according to an embodiment of the present invention.

Shown in the figure: 10. a heat dissipation bracket; 211. a laser light source unit; 212. a first LED light source unit; 213. a focusing unit; 214. a substrate; 215. an LED chip; 216. a reflective interface; 220. a wavelength conversion unit; 221. a phosphor layer; 30. a high beam light source group; 310. a second LED light source; 40. a near-light reflecting bowl; 410. a light-passing part; 420. a curved mirror; 50. a high beam reflector; 60. a movable visor; 70. a lens; 80. a heat sink set.

Detailed Description

The invention is described in detail below with reference to the attached drawing figures:

as shown in fig. 1, the present invention provides a vehicle headlamp integrating a high beam and a low beam, which comprises a heat dissipating support 10, a low beam light source set and a high beam light source set 30 respectively disposed at upper and lower sides of the heat dissipating support 10, a low beam light reflecting bowl 40 corresponding to the low beam light source set, a high beam light reflecting bowl 50 corresponding to the high beam light source set 30, a movable light shielding plate 60 and a lens 70 disposed at a front end of the heat dissipating support 10, and a heat dissipating sheet set 80 disposed at a rear end of the heat dissipating support 10, wherein the low beam light source set comprises an excitation light unit and a wavelength converting unit 220, the excitation light unit comprises a laser source unit 211, a first LED light source unit 212, and a control switch (not shown) connected to the laser source unit 211, a position of the wavelength converting unit 220 corresponds to a focus of the low beam light reflecting bowl 40, and a laser beam emitted from the laser source unit 211 and a light beam emitted from the first LED light source unit 212 are respectively projected onto the wavelength converting unit 220 Exciting fluorescence, wherein the fluorescence is reflected by the near-light reflecting bowl 40 and then emitted in a specified direction; the high beam light source group 30 includes a second LED light source unit including a plurality of second LED light sources 310. Set up laser source unit 211 and first LED light source unit 212 in the exciting light unit, wherein the laser beam that laser source unit 211 emitted has the collimation nature good, and the characteristic of energy concentration can form the pointolite of hi-lite to improve the central illuminance of nearly light field, open or close laser source unit 211 through control switch according to actual, can satisfy the real-time demand of traveling of vehicle, convenient to use.

Preferably, passing light reflector 40 and distance light reflector 50 are the curved surface structure, distance light reflector 50's camber is less than distance light reflector 50's camber, and when practical application, the facula of passing light beam is wide more than high ellipse, and consequently the passing light reflector 40 camber that corresponds is less, and the facula of distance light beam is high more than wide ellipse, and consequently the distance light reflector 50 camber that corresponds is great.

With reference to fig. 2, the second LED light sources 310 are integrally packaged with the focus of the low-beam reflector 40. In this embodiment, the number of the second LED light sources 310 includes 9 LED chips and a fluorescent powder layer attached above the LED chips, and the second LED light sources 310 are fixed on the lower surface of the heat dissipation bracket 10, and form an array of 3 × 3 with the focus of the high beam reflector 50 as the center, which may be other numbers, and this is not limited herein.

Preferably, the laser source unit 211 and the wavelength conversion unit 220 are respectively disposed on two sides of the low-beam light reflecting bowl 40, and the low-beam light reflecting bowl 40 is provided with a light passing portion 410 for passing through the laser beam. Specifically, the number of the light transmitting portions 410 may be one or more, and may be through holes, or through holes provided with a transparent member that can transmit laser beams, or a transparent member that can transmit laser beams and is integrated with the low-beam light reflecting bowl 40, and the transparent member that can transmit laser beams may be a transparent plate having a filter, and the transparent plate may transmit laser beams and reflect fluorescence, i.e., white light, excited by the wavelength conversion unit 220, so that the fluorescence emitted by the wavelength conversion unit 220 can be prevented from leaking from the light transmitting portions 410. The light-passing part 410 is used to guide the laser beam to the wavelength conversion unit 220, and may be an oval, a circle, or other shape, and has a size adapted to the diameter of the laser beam, so that the laser beam passes through. The laser source unit 211 is installed on the other side of the wavelength conversion unit 220 opposite to the low-beam light reflecting bowl 40, so that the structure and the position of the laser source unit 211 can be flexibly designed according to the used space conditions and can be conveniently replaced, and of course, the laser source unit 211 can also be installed on the same side of the wavelength conversion unit 220 opposite to the low-beam light reflecting bowl 40 as the first LED light source unit 212, so that the structure of the light emitting device can be further simplified.

Preferably, the laser source unit 211 includes one or more laser sources, which are designed according to the power of the output light, particularly the central illumination, and of course, a plurality of laser sources may be disposed in the laser source unit 211, and the number of currently operating laser sources is selected according to the need when in use, for example, by selecting through a switch or other elements, so as to further improve the convenience and versatility of use. The number of the light-passing parts 410 is one or more, specifically, when there is only one laser source, there is also one light-passing part 410; when the number of the laser sources is multiple, that is, more than or equal to 2, the number of the light-passing parts 410 can be only one, and at this time, the light beams emitted by the multiple laser sources share one light-passing part 410; of course, the light-passing part 410 may be provided in plural, corresponding to the laser light sources one by one, and each light-passing part 410 is used for guiding the laser beam emitted from the corresponding laser light source to the wavelength conversion unit 220. In this embodiment, the laser source is preferably a semiconductor laser, that is, a laser diode, and has the characteristics of small size and long service life, so that the size of the device is further reduced, and the service life and the stability are improved. The semiconductor laser used here may be an element having 1 light emitting point on 1 chip, or may be an element having a plurality of light emitting points on 1 chip.

Preferably, the laser source unit 211 further includes one or a combination of two or more of a collimating unit (not shown), a beam angle changing unit (not shown), and a focusing unit 213, and the collimating unit, the beam angle changing unit, and the focusing unit 213 are disposed along the optical path. The collimating unit may be disposed at an outlet of the laser source, and usually employs a collimating lens or other light beam collimating element for converting the output laser light into collimated parallel light, so as to further improve the collimation of the laser beam. The beam angle changing unit is used for deflecting the laser beam to change the advancing direction of the laser beam, so that the whole system is compact in structure, the beam angle changing unit can adopt a plane reflector or a curved reflector, can also adopt a metal film or a dielectric film and the like, the same effect can be achieved, and certainly, when the using space is not limited, the angle of the semiconductor laser can be directly adjusted to save the beam angle changing unit, so that the cost is reduced. The focusing unit 213 may employ a focusing lens or other focusing elements for converging the laser beam to be better projected onto the wavelength conversion unit 220 through the light transmitting part 410, and at the same time, the curved surface of the focusing unit 213 may be adjusted to form light with a proper size when the laser beam is incident on the wavelength conversion unit 220, as shown in fig. 1, only the focusing unit 213 is used in the laser source unit 211, and in actual use, one of the collimating unit, the beam angle changing unit, and the focusing unit 213 may be selected for use alone or two or three of them may be selected for use in combination, and the positions of the three may be arranged according to the use space requirement, as long as it is ensured that the laser beam can be projected onto the wavelength conversion unit 220 through the light transmitting part 410.

Preferably, the first LED light source unit 212 includes a substrate 214 and at least one LED chip 215, the wavelength conversion unit 220 includes at least one phosphor layer 221, the phosphor layer 221 is disposed on the LED chip 215 or on the substrate 214, one phosphor layer 221 is disposed above each LED chip 215, and the phosphor layer 221 is disposed below the substrate 214.

Preferably, the low-beam light reflecting bowl 40 is a curved mirror, the wavelength conversion unit 220 is located at a focus of the curved mirror, the LED chip 215 and the phosphor layer 221 are respectively provided with one, and the laser beam is projected to a center of an upper surface of the phosphor layer 221. As shown in fig. 3, the phosphor layer 221 is located above the LED chip 215, and the LED chip 215 is connected to the substrate 214 through the reflective interface 216, and specifically, the substrate 214 has two functions, namely, conducting the heat generated by the LED chip 215 downward, and providing an electrode on the substrate 214, which is connected to an external power source for supplying power to the LED chip 215. In this embodiment, the LED chip 215 is a light emitting diode, and is integrated on a chip, and emits a light beam, i.e., an excitation light, through electrical input spontaneous radiation of the substrate 214, a part of the excitation light is transmitted upward and enters the phosphor layer 221 to excite the phosphor portion therein to generate fluorescence, and another part of the excitation light is transmitted downward and incident on the reflective interface 216, and the reflective interface 216 has a high reflectivity, and the part of light is also reflected onto the phosphor layer 221 and excites the phosphor portion therein to generate fluorescence, so that the excitation light emitted by the LED chip 215 is fully utilized, and the utilization rate of the LED chip 215 is improved.

Because the reflective interface 216 with high reflectivity is arranged between the LED chip 215 and the substrate 214, it can be ensured that almost all the fluorescent light output by the fluorescent powder layer 221 is reflected by the low-beam light reflecting bowl 40 and then emitted, and therefore, the fluorescent powder layer 221 can be ensured to have higher light extraction efficiency. In this embodiment, the phosphor layer 221 is detachably connected to the LED chip 215, so as to be easily replaced, and it may be adhered to the LED chip 215 by an adhesion process, or may be disposed on the LED chip 215 by a transparent fastener or the like, or may be in other manners as long as the detachable connection function is achieved. The upper and lower surfaces of the phosphor layer 221 can be excited by the output light from the laser source and the LED chip 215, respectively, so that the phosphor layer 221 has higher brightness, and the requirement of high beam application in the automotive headlamp is met. Certainly, the phosphor layer 221 and the corresponding LED chip 215 may be packaged together, or even the wavelength conversion unit 220 and the LED chip 215 may be packaged together, so as to reduce the assembly difficulty and improve the stability of the relative position of the two, however, it is inconvenient to replace the phosphor layer 221 or the LED chip 215 by this method, and in addition, the phosphor layer 221 and the LED chip 215 may not be in contact, for example, suspended on the LED chip 215, as long as the stability of the relative position of the two is ensured.

Preferably, the low-beam light reflecting bowl 40 is a curved mirror 420, the number of the LED chips 215 and the number of the phosphor layers 221 are multiple, the multiple phosphor layers 221 are closely arranged and located at a focus of the curved mirror 420, one phosphor layer 221 corresponds to the upper side of each LED chip 215, a reflection interface 216 is arranged between each LED chip 215 and the substrate 214, and the laser beam is projected onto each phosphor layer 221 or one of the phosphor layers 221. Specifically, the number of the LED chips 215 and the number of the phosphor layers 221 are multiple and the number of the LED chips 215 and the number of the phosphor layers 221 are the same, that is, the LED chips 215 and the phosphor layers 221 are in one-to-one correspondence, and the laser beams are projected onto one of the phosphor layers 221, as shown in fig. 4, three of the LED chips 215 and the phosphor layers 221 are respectively provided, certainly, 2 or more than or equal to 4 of the LED chips and the phosphor layers are arranged at the focus of the near-light reflector 40 closely along a straight line, and the laser beams are projected onto the upper surface of the second phosphor layer 221, and certainly, the laser beams can also be projected onto the upper surfaces of other phosphor layers 221, and are usually projected onto the central area formed by arranging. Alternatively, the number of the LED chips 215 and the number of the phosphor layers 221 are multiple, one phosphor layer 221 is larger than that of the LED chips 215, one phosphor layer 221 is disposed above each LED chip 215, the laser beam is projected onto the upper surface of the extra phosphor layer 221, the LED chips 215 are not disposed below the phosphor layers 221, but are directly disposed on the substrate 214, so that the thermal resistance between the phosphor layers 221 and the substrate 214 can be reduced, and the heat dissipation speed of the phosphor layers 221 can be increased.

As shown in fig. 5 to 6, the low-beam light reflecting bowl 40 is formed by splicing a plurality of curved mirrors 420, the LED chips 215 and the phosphor layers 221 are respectively provided in plurality, the phosphor layers 221 are distributed at intervals, each phosphor layer 221 is located at a focus of one corresponding curved mirror 420, one phosphor layer 221 corresponds to an upper portion of each LED chip 215, a reflective interface 216 is provided between each LED chip 215 and the substrate 214, and the laser beam is projected onto each phosphor layer 221 or one of the phosphor layers 221. Specifically, the low beam reflector 40 is formed by splicing a plurality of curved mirrors 420, each curved mirror 420 corresponds to a focus, the surface shape of the curved mirror 420 may be a paraboloid, an ellipsoid or other curved surfaces, each phosphor layer 221 is located at the focus corresponding to one curved mirror 420, the number of the phosphor layers 221 may be the same as the number of the curved mirrors 420, the two may correspond to each other one by one, or may be less than the number of the curved mirrors 420, a plurality of the phosphor layers 221 may be arranged at intervals along a straight line or in other manners, and in order to improve the illumination uniformity, the pattern formed by the arrangement preferably is an axisymmetric or centrosymmetric pattern. The laser beam may be projected onto the upper surface of the phosphor layer 221 positioned in the middle of the plurality of phosphor layers 221 or may be projected onto the upper surface of each phosphor layer 221. As shown in fig. 5, three laser beams are respectively provided on the LED chip 215 and the phosphor layer 221 to project onto the upper surface of the phosphor layer 221 located at the center, but may be 2 or more than 4 laser beams, and at this time, the laser beams may project onto the upper surface of each phosphor layer 221. Alternatively, the number of the LED chips 215 and the number of the phosphor layers 221 are both multiple, and one more phosphor layer 221 is provided than the LED chips 215, and each phosphor layer 221 is located at a focal point of a corresponding curved mirror 420. The plurality of phosphor layers 221 may be arranged in a line or other manner with gaps therebetween, but in order to improve illumination uniformity, the pattern formed by the arrangement preferably has an axisymmetric or a centrosymmetric pattern. The laser beam is projected onto the upper surface of the phosphor layer 221 located in the middle of the plurality of phosphor layers 221 to increase the illumination of the central region of the optical field, and the LED chip 215 is not disposed below the phosphor layer 221 but directly disposed on the substrate 214, so that the thermal resistance between the phosphor layer 221 and the substrate 214 can be reduced, and the heat dissipation speed of the phosphor layer 221 can be increased.

In summary, the present invention provides a vehicle headlamp integrating a high beam and a low beam, which comprises a heat dissipating support 10, a low beam light source set and a high beam light source set 30 respectively disposed at the upper side and the lower side of the heat dissipating support 10, a low beam light reflector 40 corresponding to the low beam light source set, a high beam light reflector 50 corresponding to the high beam light source set 30, a movable light shielding plate 60 and a lens 70 disposed at the front end of the heat dissipating support 10, and a heat dissipating sheet set 80 disposed at the rear end of the heat dissipating support 10, wherein the low beam light source set comprises an excitation light unit and a wavelength converting unit 220, the excitation light unit comprises a laser light source unit 211 and a first LED light source unit 212, the wavelength converting unit 220 is located corresponding to the focus of the low beam light reflector 40, and the laser beam emitted by the laser light source unit 211 and the light beam emitted by the first LED light source unit 212 are respectively projected onto the wavelength converting unit 220 and emit fluorescence, the fluorescence is reflected by the near light reflecting bowl 40 and then emitted in a specified direction; the high beam light source group 30 includes a second LED light source unit including a plurality of second LED light sources 310. Set up laser source unit 211 and first LED light source unit 212 in the exciting light unit, wherein the laser beam that laser source unit 211 emitted has the collimation nature good, and the characteristic of energy concentration can form the pointolite of hi-lite to improve the central illuminance of nearly light field, open or close laser source unit 211 according to actual need, satisfy the requirement of going of vehicle in real time, convenient to use.

Although the embodiments of the present invention have been described in the specification, these embodiments are merely provided as a hint, and should not limit the scope of the present invention. Various omissions, substitutions, and changes may be made without departing from the spirit of the invention and are intended to be within the scope of the invention.

Claims

1. A vehicle headlamp integrating far light and near light comprises a radiating support, a near light source group and a far light source group which are respectively arranged at the upper side and the lower side of the radiating support, a near light reflector corresponding to the near light source group, a far light reflector corresponding to the far light source group, a movable light screen and a lens which are arranged at the front end of the radiating support, and a radiating fin group arranged at the rear end of the radiating support, and is characterized in that the near light source group comprises an exciting light unit and a wavelength conversion unit, the exciting light unit comprises a laser source unit, a first LED light source unit and a control switch connected with the laser source unit, the position of the wavelength conversion unit corresponds to the focus of the near light reflector, a laser beam emitted by the laser source unit and a light beam emitted by the first LED light source unit are respectively projected onto the wavelength conversion unit and fluoresce, the fluorescence is reflected by the near light reflecting bowl and then emitted in a specified direction; the high beam light source group comprises a second LED light source unit, and the second LED light source unit comprises a plurality of second LED light sources.

2. The high-low beam integrated vehicle headlamp according to claim 1, wherein the light emitted from the low beam light source group is reflected by the low beam reflector and then emitted in parallel obliquely downward, and the light emitted from the high beam light source group is reflected by the high beam reflector and then emitted in parallel obliquely upward.

3. The high-beam and low-beam integrated vehicle headlamp as defined in claim 1, wherein a plurality of the second LED light sources are integrally encapsulated with the focus of the high-beam reflector as a center.

4. The high-beam and low-beam integrated vehicle headlamp according to claim 1, wherein the laser source unit and the wavelength conversion unit are respectively disposed at two sides of the low-beam reflector, and the low-beam reflector is provided with a light passing portion for passing through the laser beam.

5. The high-beam and low-beam integrated vehicle headlamp according to claim 4, wherein the laser light source unit further comprises one or a combination of two or more of a collimating unit, a beam angle changing unit, and a focusing unit, and the collimating unit, the beam angle changing unit, and the focusing unit are disposed along the optical path.

6. The high-low beam integrated vehicle headlamp according to claim 4, wherein the laser light source unit comprises one or more laser light sources, and the light-passing portion is provided with one or more laser light sources.

7. The high-beam and low-beam integrated vehicle headlamp according to claim 4, wherein the first LED light source unit comprises a substrate and at least one LED chip, the wavelength conversion unit comprises at least one phosphor layer, the phosphor layer is disposed on the LED chip or on the substrate, one phosphor layer is disposed above each LED chip, and the other phosphor layer is disposed below the substrate.

8. The high-beam and low-beam integrated vehicle headlamp as claimed in claim 7, wherein the low-beam reflector is a curved mirror, the wavelength conversion unit is located at a focal point of the curved mirror, the LED chip and the phosphor layer are respectively provided with one, and the laser beam is projected to a center of an upper surface of the phosphor layer.

9. The vehicle headlamp integrating near light and far light as claimed in claim 7, wherein the near light reflector is a curved mirror, the number of the LED chips and the number of the phosphor layers are plural, the plural phosphor layers are closely arranged and located at a focus of the curved mirror, one phosphor layer corresponds to an upper portion of each LED chip, a reflective interface is provided between each LED chip and the substrate, and the laser beam is projected onto each phosphor layer or one of the phosphor layers.

10. The vehicle headlamp of claim 7, wherein the low beam reflector is formed by splicing a plurality of curved mirrors, the LED chip and the phosphor layer are respectively provided in plurality, and the phosphor layer is distributed in a gap manner, each phosphor layer is located at a focus of a corresponding curved mirror, a phosphor layer is located above each LED chip, a reflective interface is provided between each LED chip and the substrate, and the laser beam is projected onto each phosphor layer or one of the phosphor layers.