CN108692265B

CN108692265B - Light source assembly

Info

Publication number: CN108692265B
Application number: CN201710124461.3A
Authority: CN
Inventors: 安淑苗; 张露; 冉飞; 安旺
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2017-03-03
Filing date: 2017-03-03
Publication date: 2020-11-20
Anticipated expiration: 2037-03-03
Also published as: CN108692265A

Abstract

The invention discloses a light source assembly, comprising: a light source, the light source comprising: the central light source and the peripheral light source are independently controlled, and the peripheral light source is arranged on the periphery of the central light source; the light rays emitted by the light source pass through the converging parallel mirror assembly and are converged and emitted in parallel; the light rays emitted from the converging parallel mirror assembly are emitted through the scattering sheet; the first converging lens is used for emitting the light rays emitted from the scattering sheet; the light rays emitted by the peripheral light source after passing through the converging parallel mirror assembly, the scattering sheet and the first converging lens are emitted to the central area, and the light rays emitted by the central light source after passing through the converging parallel mirror assembly, the scattering sheet and the first converging lens are emitted to the peripheral area surrounding the central area. The peripheral portion and the central portion of the light irradiation range of the light source assembly according to the present invention can be independently adjusted.

Description

Light source assembly

Technical Field

The invention relates to the technical field of vehicles, in particular to a light source assembly.

Background

In the related art, the brightness of the illumination central area and the brightness of the illumination peripheral area of the light source assembly are uniformly adjusted, and the brightness of the illumination central area and the brightness of the illumination peripheral area are not required to be consistent, so that the brightness of the illumination central area is improved, and the brightness of the illumination peripheral area is also improved inevitably, so that dazzling of coming and going vehicles and pedestrians is caused, and traffic safety is influenced; in addition, when the brightness of the headlamp is improved, the prior art repeatedly processes the light path, and the light loss is increased.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, the present invention provides a light source module, in which the peripheral portion and the central portion of the light irradiation range of the light source module can be independently adjusted.

The light source assembly according to the present invention comprises: a light source, the light source comprising: a central light source and a peripheral light source which are independently controlled, wherein the peripheral light source is arranged on the periphery of the central light source; the light rays emitted by the light source pass through the converging parallel mirror assembly and then converge and exit in parallel; the light rays emitted from the converging parallel mirror assembly exit through the diffuser plate; the first converging lens is used for emitting the light rays emitted from the scattering sheet; the light rays emitted by the peripheral light source after passing through the converging parallel mirror assembly, the scattering sheet and the first converging lens are emitted to a central area, and the light rays emitted by the central light source after passing through the converging parallel mirror assembly, the scattering sheet and the first converging lens are emitted to a peripheral area surrounding the central area.

Further, the converging parallel mirror assembly comprises: the light rays emitted from the central light source and the peripheral light source are converged and emitted through the second converging lens, and the light rays emitted from the second converging lens are emitted in parallel through the concave lens.

Further, the light source assembly further comprises: and the light rays emitted from the first converging lens are emitted out through the cylindrical mirror.

Further, at least one of the central light source and the peripheral light source is a fiber coupled laser light source.

Further, the central light source is a fiber coupled laser light source, and the fiber coupled laser light source includes: the central light source body is arranged at one end of the optical fiber, an optical path transmission channel is arranged in the optical fiber, and light rays emitted by the central light source body are emitted from the other end of the optical fiber after being reflected for multiple times on the wall of the optical path transmission channel.

Further, the color temperature of the central light source and the peripheral light source is adjustable.

Further, the central light source and the peripheral light source are three primary color laser light sources.

Further, each of the central light source and the peripheral light source includes: a red laser diode, a green laser diode, and a blue laser diode.

Further, the ambient light source includes: a plurality of red laser diodes, a plurality of green laser diodes, and a plurality of blue laser diodes;

the plurality of green laser diodes are disposed inside the peripheral light source, the plurality of red laser diodes are disposed outside the peripheral light source, the plurality of blue laser diodes are disposed between the plurality of green laser diodes and the plurality of red laser diodes, and the number of red laser diodes is n1, the number of green laser diodes is n2, the number of blue laser diodes is n3, and n1, n2, and n3 satisfy the following relations: (14-18), (6-10) and (1-5).

Further, the central light source includes: a plurality of red laser diodes, a plurality of green laser diodes, and a plurality of blue laser diodes;

the plurality of green laser diodes are disposed inside the center light source, the plurality of green laser diodes are disposed outside the center light source, the plurality of blue laser diodes are disposed between the plurality of green laser diodes and the plurality of red laser diodes, and the number of red laser diodes is n1, the number of green laser diodes is n2, the number of blue laser diodes is n3, and n1, n2, and n3 satisfy the following relations: (14-18), (6-10) and (1-5).

Further, the brightness of the central light source and the peripheral light source is adjustable.

Further, the number of lighting of the plurality of red laser diodes is variable, the number of lighting of the plurality of green laser diodes is variable, and the number of lighting of the plurality of blue laser diodes is variable.

Compared with the prior art, the light source component has the following beneficial effects:

(1) the light source assembly can respectively adjust the brightness of the illumination central area and the brightness of the illumination peripheral area, can increase the brightness of the illumination central area, improves the irradiation distance of light, can decrease the brightness of the illumination peripheral area, and avoids the influence on traffic safety caused by dazzling pedestrians and vehicles of the other side due to overhigh brightness.

(2) The central light source or/and the peripheral light source in the light source component provided by the invention adopt the optical fiber coupling laser light source, so that the loss of light in the transmission process can be effectively reduced, and the power consumption of a vehicle is reduced.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of an adjustment mechanism according to one embodiment of the present invention;

FIG. 2 is a schematic view of an adjustment mechanism according to another embodiment of the invention;

FIG. 3 is a schematic view of an adjustment mechanism according to yet another embodiment of the present invention;

FIG. 4 is a schematic view of an adjustment mechanism according to yet another embodiment of the present invention; (ii) a

FIG. 5 is a schematic view of an adjustment mechanism according to yet another embodiment of the present invention;

FIG. 6 is a schematic view of an adjustment mechanism according to yet another embodiment of the present invention;

FIG. 7 is a schematic view of a heat dissipation system according to an embodiment of the present invention;

FIG. 8 is a schematic view of a DMD water-cooled plate body, according to an embodiment of the invention;

FIG. 9 is a schematic view of a DMD water-cooled plate, according to an embodiment of the invention;

FIG. 10 is a schematic view of a light source water-cooled plate body according to an embodiment of the invention;

FIG. 11 is a schematic view of a light source water-cooled plate body according to an embodiment of the invention;

FIG. 12 is a schematic view of a light source according to an embodiment of the invention;

FIG. 13 is a schematic diagram of a peripheral light source according to an embodiment of the present invention;

FIG. 14 is a schematic view of a central light source according to an embodiment of the invention;

FIG. 15 is an optical diagram of a light source according to one embodiment of the present invention;

FIG. 16 is an optical path diagram of a light source according to another embodiment of the present invention;

FIG. 17 is a schematic view of a DMD water-cooled plate, according to an embodiment of the invention;

FIG. 18 is a schematic view of a light source water-cooled plate according to an embodiment of the invention.

Reference numerals: an adjusting mechanism 100, a rear wedge angle piece 101, a front wedge angle piece 102, a first motor 103, a second motor 104, a first gear ring 105, a second gear ring 106, a first gear 107, a second gear 108, a first magnetic member 115, a second magnetic member 116, a front sleeve 117, a rear sleeve 118, an outer sleeve 119, a light source 120, a central light source 120a, a peripheral light source 120b, a scattering sheet 121, a first converging lens 122, a second converging lens 123, a concave lens 124, a cylindrical mirror 125, a red laser diode 126, a green laser diode 127, a blue laser diode 128, air-cooled water discharge 129, a heat exchanger 130, a first on-off valve 131, a first water pump 132, a second on-off valve 133, a second water pump 134, a first three-way valve 135, a second three-way valve 136, a first one-way valve 137, a second one-way valve 138, a light source water cooling plate 139, a DMD water cooling plate body 141, a water inlet joint 142, a water outlet joint 143, the DMD water cooling plate casing 144, the DMD water cooling plate cooling channel 145, the partition 146, the light source water cooling plate body 147, the light source water cooling plate cooling channel 148, the light source water cooling plate casing 149, the protrusion structure 150, the protective housing 151, the protective housing body 152, the protective housing cover plate 153, the light source water cooling plate mounting groove 154, the light source water cooling plate cover plate 155, the light source groove plate 156, the light source groove 157, the light source lens groove plate 158, the light source lens wafer 159, the light source lens press plate 160, the control plate 161, the DMD water cooling plate cover plate 162, the gasket 163, the first gasket 164, the second gasket 165, the fastening spring 166, and the fastening clamp spring 167.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

A headlamp system according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 18.

A headlamp system according to an embodiment of the present invention may include a light source, a converging parallel mirror assembly, a diffuser, a first converging lens, an adjustment mechanism 100, a first actuator, and a second actuator.

The light source comprises a central light source and a peripheral light source, the central light source and the peripheral light source are independently controlled, namely, the brightness of the central light source and the brightness of the peripheral light source can be respectively controlled, and the central light source and the peripheral light source do not influence each other when brightness adjustment is carried out on the central light source and the peripheral light source.

From this, can adjust illumination central zone's luminance and illumination peripheral zone's luminance respectively, can increase illumination central zone's luminance, promote the irradiation distance of light, can turn down illumination peripheral zone's luminance simultaneously, avoid too high luminance to cause dazzling and influence traffic safety to pedestrian and other side's vehicle.

The light emitted by the light source passes through the converging parallel mirror assembly and then converges and exits in parallel, namely, the converging parallel mirror assembly has a light-converging effect and can converge the diverging light, so that the brightness of the light is improved; meanwhile, the light rays can be emitted in parallel.

The light from converging the parallel mirror subassembly passes through the diffuser plate outgoing, and the diffuser plate can make light more even, avoids local area's luminance too high and influences the car light and shines the effect. In addition, even light can also promote driver's the experience of driving, avoids the driver to watch inhomogeneous illumination light for a long time and causes visual fatigue.

The light rays emitted from the scattering sheet are emitted after passing through the first converging lens, and the first converging lens can converge the light rays emitted from the scattering sheet.

The light from the first converging lens may sequentially pass through the reflector or the DMD chip and enter the adjusting mechanism 100, and the adjusting mechanism 100 may adjust the light emitted from the light source assembly to change the emitting direction of the light, for example, the adjusting mechanism 100 may be controlled to deflect the light left, right, upward or downward.

The adjustment mechanism 100 may comprise a front wedge angle piece 102 and a rear wedge angle piece 101, the front wedge angle piece 102 and the rear wedge angle piece 101 are juxtaposed, i.e. the front wedge angle piece 102 and the rear wedge angle piece 101 are arranged side by side, the front wedge angle piece 102 and the rear wedge angle piece 101 are both wedge-shaped and have a thin end and a thick end, the front wedge angle piece 102 and the rear wedge angle piece 101 are both configured as light-permeable light-transmitting components, and at least one of the front wedge angle piece 102 and the rear wedge angle piece 101 is arranged to be rotatable around its own rotation axis.

The adjustment mechanism 100 further comprises a first driving member for driving the rear cleat 101 to rotate about its own axis, and a second driving member for driving the front cleat 102 to rotate about its own axis. Since the first driving member and the second driving member are independent driving mechanisms, the rotation speed and the rotation direction of the rear cleat 101 and the front cleat 102 can be adjusted separately. For example, the rear cleat pockets 101 and the front cleat pockets 102 may rotate in the same direction at the same speed or in opposite directions at the same speed.

It should be noted that "front" in this document means a direction toward the light ray, and "rear" means a direction away from the light ray. For example, the front cleat 102 is a cleat close to the globe, and the rear cleat 101 is a little farther from the globe than the front cleat 102.

By rotating the front wedge angle piece 102 and the rear wedge angle piece 101, the deflection direction of the light entering the front wedge angle piece 102 and the rear wedge angle piece 101 can be changed, and the deflection angle of the light can be changed by changing the distance the light travels in the rear wedge angle piece 101 and the front wedge angle piece 102.

Because two wedge angle pieces respectively adopt respective driving mechanisms (namely, the first driving piece and the second driving piece), the two wedge angle pieces can be independently controlled and do not interfere with each other, so that the adjustment response speed is increased, the adjustment range is relatively wider, and the multi-direction adjustment of light rays in the left direction, the right direction, the upward direction and the downward direction and the adjustment of the coupling direction can be realized.

In some embodiments of the present invention, the front side surface of the rear cleat 101 and the rear side surface of the front cleat 102 are disposed in a fitting manner, so that the space occupation of the rear cleat 101 and the front cleat 102 is reduced, and the overall appearance of the headlamp system is prevented from being affected by an excessively large appearance.

In order to reduce the friction between the rear cleat pocket 101 and the front cleat pocket 102, grease or the like may be provided between the rear cleat pocket 101 and the front cleat pocket 102. Of course, the rear cleat 101 and the front cleat 102 may be spaced apart from each other to avoid abrasion between them, so as to improve the service life of the rear cleat 101 and the front cleat 102, and improve the light output.

The front and rear sides of the front cleat 102 are at an angle equal to the front and rear sides of the rear cleat 101. Thereby, it is ensured that the light rays passing through the front wedge 102 and the rear wedge 101 may exit horizontally.

In some embodiments of the present invention, the outer contour of the front cleat 102 and the outer contour of the rear cleat 101 are both circular, the front cleat 102 and the rear cleat 101 with circular structures rotate more easily, and the circular front cleat 102 and rear cleat 101 occupy less space under the premise of the same emitting area, which facilitates the arrangement of the front cleat 102 and the rear cleat 101.

Further, the diameter of the outer contour of the rear cleat 101 is the same as the diameter of the outer contour of the front cleat 102. That is, the rear cleat piece 101 and the front cleat piece 102 are the same size.

In some embodiments of the invention, the front cleat 102 and the rear cleat 101 are arranged coaxially. Therefore, the light rays can be emitted more conveniently, and the whole occupied space of the headlamp system is further reduced.

Further, the front side of the rear cleat 101 and the rear side of the front cleat 102 are arranged in parallel. For example, the front side of the rear cleat 101 and the rear side of the front cleat 102 may both be disposed perpendicular to the horizontal plane. Thereby, the front cleat 102 and the rear cleat 101 are more easily rotated, and the front cleat 102 and the rear cleat 101 may be coaxially rotated without interfering with each other.

Further, the front side surface of the rear cleat 101 is orthogonal to the outer peripheral surface of the rear cleat 101, and the rear side surface of the front cleat 102 is orthogonal to the outer peripheral surface of the front cleat 102. For example, the front side of the rear cleat piece 101 is vertically disposed, and the rear side of the front cleat piece 102 is vertically disposed.

Therefore, the light rays penetrate through the rear wedge angle piece 101 and the front wedge angle piece 102, the transmittance is high, the occupied space of the front wedge angle piece 102 and the occupied space of the rear wedge angle piece 101 are small, and the front wedge angle piece 102 and the rear wedge angle piece 101 are convenient to arrange.

In some embodiments of the present invention, when the thin end of the front cleat 102 is aligned with the thick end of the rear cleat 101 and the thick end of the front cleat 102 is aligned with the thin end of the rear cleat 101, the front side of the front cleat 102 is parallel to the rear side of the rear cleat 101. At this time, the front wedge angle piece 102 and the rear wedge angle piece 101 are in the initial positions, and the light rays exit from the front direction through the front wedge angle piece 102 and the rear wedge angle piece 101.

In some embodiments of the present invention, the direction of rotation of the rear cleat 101 is the same as or opposite to the direction of rotation of the front cleat 102. That is, the rear cleat piece 101 and the front cleat piece 102 may rotate in the same direction or in opposite directions.

Further, the rotation speeds of the rear cleat pockets 101 and the front cleat pockets 102 are the same, and thus the rotation angles of the rear cleat pockets 101 and the front cleat pockets 102 per unit time are the same.

In the specific example of the present invention, the rear cleat corner piece 101 and the front cleat corner piece 102 have the same structure, and the rear cleat corner piece 101 and the front cleat corner piece 102 can be replaced with each other, so that the production efficiency of the rear cleat corner piece 101 and the front cleat corner piece 102 is improved, and the production cost is reduced.

The adjustment mechanism 100 of the present embodiment further comprises a drive assembly arranged to drive at least one of the front cleat 102 and the rear cleat 101 in rotation about its rotational axis.

In some embodiments of the present invention, as shown in fig. 2, the driving assembly comprises a first motor 103 and a second motor 104, wherein the first motor 103 is used for driving the rear wedge 101 to rotate around its rotation axis, and the second motor 104 is used for driving the front wedge 102 to rotate around its rotation axis.

That is, the rear cleat piece 101 and the front cleat piece 102 are driven by separate motors, respectively, so that the rear cleat piece 101 and the front cleat piece 102 are independent of each other and their rotation is not affected by the opposite direction.

Further, the first motor 103 and the rear wedge 101 are connected through a first gear ring 105 and a first gear 107, the rear wedge 101 is embedded in the first gear ring 105, gear teeth distributed along the periphery are arranged outside the first gear ring 105, the first gear 107 is connected with a driving shaft of the first motor 103, and the first gear ring 105 is meshed with the first gear 107. The first motor 103 rotates, and since the driving shaft of the first motor 103 is engaged with the first gear ring 105, the first motor 103 can drive the first gear ring 105 to rotate, and the rear wedge 101 on the first gear ring 105 can also rotate.

The second motor 104 is connected with the front wedge plate 102 through a second gear ring 106 and a second gear 108, the front wedge plate 102 is embedded in the second gear ring 106, gear teeth distributed along the periphery are arranged outside the second gear ring 106, the second gear 108 is connected with a driving shaft of the second motor 104, and the second gear ring 106 is meshed with the second gear 108. The second motor 104 rotates, and since the driving shaft of the second motor 104 is engaged with the second ring gear 106, the second motor 104 can drive the second ring gear 106 to rotate, and further the front wedge 102 on the second ring gear 106 can also rotate.

It will be appreciated that the adjustment mechanism 100 further comprises a support base for supporting the first and second gear rings 105, 106 such that the first and second gear rings 105, 106 can each rotate about their own axis of rotation. The bearing blocks may be tile-shaped and may be supported at the bottom of the first and second gear rings 105, 106.

The adjusting mechanism 100 of the embodiment of the present invention further includes an initial position sensing means for detecting whether the rear cleat 101 and the front cleat 102 are in the initial positions. Therefore, the headlamp can be ensured to accurately adjust the rotating angle, and the driving experience of a driver is improved.

For example, in the process of installing and debugging the initial position sensing device, the corresponding relation between the electronic zero position and the mechanical zero position can be calibrated, and then the position of the mechanical zero position is determined by the electronic zero position.

The initial position sensor of the embodiment of the present invention includes a hall sensor and a magnetic member, the hall sensor is fixedly installed, for example, the hall sensor may be fixedly installed on the support base, the magnetic member is disposed on the first ring gear 105 and the second ring gear 106, and the hall sensor determines the rotation angle and the initial position of the first ring gear 105 and the second ring gear 106 by sensing the magnetic flux of the magnetic member on the first ring gear 105 and the second ring gear 106.

In consideration of a wider environment temperature range, the Hall sensor should select the type with temperature compensation as much as possible, and the magnet should select the magnet with higher working temperature and distance temperature, good mechanical strength and strong magnetic field. Preferably, the magnetic member is a neodymium iron boron coated magnet.

Further, the distance between the hall sensor and the magnetic member has a significant influence on the magnetic induction intensity, and it is necessary to ensure that the distance between the magnetic member and the surface of the hall sensor is within a proper range, in a specific embodiment of the present invention, the distance between the hall sensor and the magnetic member is s, and s satisfies: s is less than or equal to 3 mm. Preferably, s is 2 mm.

In some embodiments of the present invention, the first ring gear 105 and the second ring gear 106 are non-light-transmissive members. Therefore, light can be prevented from passing through the first gear ring 105 and the second gear ring 106 and being sensed by the outside, and the overall light sensation of the vehicle is improved.

In some embodiments of the present invention, the drive assembly is located off-center from the forward and

aft cleat

102, 101. That is, the driving component is not disposed on the propagation path of the light, so as to avoid affecting the transmission of the light. For example, the drive assembly may be disposed on the radially outer side of the front cleat 102 and the rear cleat 101.

In the above embodiment, the front wedge angle piece 102 and the rear wedge angle piece 101 are driven by two motors, the two motors are used as power sources, the structure is simple and compact, and the motors can be micro motors, so that the size of the adjusting mechanism 100 can be further reduced.

In the embodiments of the invention to be described below, another drive means is used as a power source for the two wedge segments.

Referring to fig. 3-6, in some embodiments of the present invention, adjustment mechanism 100 includes a magnetic drive assembly configured to magnetically drive front cleat 102 and rear cleat 101 about their respective axes of rotation. Therefore, the space occupied by the motor can be saved, the size of the adjusting mechanism 100 is greatly reduced, and the adjusting mechanism is simple in structure and convenient to adjust.

Specifically, as shown in fig. 3, the magnetic driving member includes a first magnetic member 115 and a second magnetic member 116, the first magnetic member 115 is disposed on each of the front cleat piece 102 and the rear cleat piece 101, and the second magnetic member 116 is disposed corresponding to the first magnetic member 115 on each cleat piece.

In other words, the second magnetic members 116 may also be two and may respectively act on the first magnetic members 115 on the front cleat 102 and the rear cleat 101 to drive the rear cleat 101 and the front cleat 102 to rotate, the rear cleat 101 and the front cleat 102 may rotate in the same direction or in opposite directions, and the rear cleat 101 and the front cleat 102 may rotate at the same speed or at different speeds.

Further, as shown in fig. 5, the adjusting mechanism 100 of the head lamp further includes a front sleeve 117 and a rear sleeve 118, the front wedge 102 is nested in the front sleeve 117, the rear wedge 101 is nested in the rear sleeve 118, and the first magnetic member 115 is respectively disposed on the front sleeve 117 and the rear sleeve 118. The force of the first magnetic member 115 and the second magnetic member 116 may drive the front sleeve 117 and the rear sleeve 118 to rotate, and further drive the front wedge 102 disposed in the front sleeve 117 and the rear wedge 101 disposed in the rear sleeve 118 to rotate.

Further, mounting grooves for mounting the first magnetic member 115 are provided on each of the front sleeve 117 and the rear sleeve 118. This improves the stability of the mounting of the first magnetic member 115 and improves the overall appearance of the headlamp adjusting mechanism 100, at least to some extent.

In some embodiments of the present invention, as shown in fig. 6, the first magnetic member 115 is configured in a ring shape to constitute a front sleeve 117 and a rear sleeve 118. That is, the front sleeve 117 and the rear sleeve 118 are magnetic members themselves, and for example, the front sleeve 117 and the rear sleeve 118 may be made of magnets.

In some embodiments of the present invention, as shown in fig. 4, the first magnetic element 115 is a magnetic steel, and the second magnetic element 116 is an electromagnetic coil. The electromagnetic coil is energized to generate a magnetic field to interact with the magnetic steel to realize the rotation of the front wedge angle piece 102 and the rear wedge angle piece 101. Of course, both magnetic members may be electromagnetic coils. And the change of the size of the current introduced into the electromagnetic coil enables the driving speed of the wedge angle piece to change correspondingly, and the change of the direction of the current introduced into the electromagnetic coil enables the wedge angle piece to be switched between clockwise rotation and anticlockwise rotation.

Further, the electromagnetic coils are arranged in a ring shape. Therefore, the magnetic field distribution of the second magnetic member 116 is uniform, and the first magnetic member 115 and the second magnetic member 116 may more stably interact with each other, thereby improving the stability of the rotation of the rear cleat piece 101 and the front cleat piece 102.

In some embodiments of the invention, as shown in fig. 6, the magnetic drive further comprises a forward sleeve 117, a rearward sleeve 118 and an outer sleeve 119, the outer sleeve 119 being disposed radially outwardly of the forward sleeve 117 and the rearward sleeve 118. The first magnetic member 115 and the second magnetic member 116 are both electromagnetic coils, the first magnetic member 115 is embedded in the front sleeve 117 and the rear sleeve 118, and the second magnetic member 116 is embedded in the outer sleeve 119.

By changing the current flow direction of the electromagnetic coil on the first front sleeve 117 and the electromagnetic coil on the rear sleeve 118, the rotation direction of the front sleeve 117 and the rear sleeve 118 can be adjusted, and thus the rotation direction of the rear key 101 and the front key 102 can be adjusted.

In some embodiments of the present invention, the magnetic driving assembly further includes an outer sleeve 119, the first magnetic member 115 is a magnetic steel ring disposed at the outer peripheral edges of the front wedge 102 and the rear wedge 101, the second magnetic member 116 is an electromagnetic coil, and the second magnetic member 116 is embedded in the outer sleeve 119.

In some embodiments of the present invention, balls may be disposed between the front sleeve 117 and the outer sleeve 119, and between the rear sleeve 118 and the outer sleeve 119. Thereby, the frictional force between the front sleeve 117 and the outer sleeve 119 and the frictional force between the rear sleeve 118 and the outer sleeve 119 are significantly reduced, and the rear wedge tab 101 and the front wedge tab 102 are more easily rotated.

The driving mode adopting the magnetic member has the advantages that: the two magnetic parts are not required to be directly connected through other rigid connection structures such as a mechanical shaft and the like, and can be driven in a non-contact mode, so that the rigid connection structures such as a driving shaft and the like are not required to be arranged between the two magnetic parts, parts are reduced, the structure is simpler and more compact, and the size is smaller. And adopt "non-contact" mode to reduce the degree of difficulty to arranging of whole headlamp, actuating mechanism is difficult for exposing, has promoted the sense of whole headlamp.

Specific parameters of the rear cleat 101 and the front cleat 102 are described in detail below.

In some embodiments of the present invention, the included angle between the front side surface and the rear side surface of the front cleat 102 and the included angle between the front side surface and the rear side surface of the rear cleat 101 are α, and α satisfies: alpha is more than or equal to 10 degrees and less than or equal to 30 degrees, so that the sizes of the front wedge angle piece 102 and the rear wedge angle piece 101 are not too large, and meanwhile, the light rays are ensured to have enough deflection angles after passing through the front wedge angle piece 102 and the rear wedge angle piece 101.

In some embodiments of the present invention, the thin end thickness of the rear cleat piece 101 and the front cleat piece 102 is t1, the thick end thickness is t2, and t1 satisfies: 2mm < t1 < 3mm, the t2 satisfies: t2 is not less than 14mm and not more than 20 mm. Therefore, the sizes of the rear wedge-angle piece 101 and the front wedge-angle piece 102 are limited, and the sufficient light emitting amount of the rear light passing through the wedge-angle piece and the front wedge-angle piece 102 is ensured.

In other embodiments of the present invention, the thin end thickness of the rear cleat piece 101 and the front cleat piece 102 is t1, the thick end thickness is t2, and the t1 and the t2 satisfy: 1/8 is not less than t1/t2 is not less than 1/6. Therefore, the sizes of the front wedge angle piece 102 and the rear wedge angle piece 101 are not too large, and the light rays are enabled to have enough deflection angles after passing through the front wedge angle piece 102 and the rear wedge angle piece 101.

Further, the outer contours of the rear cleat piece 101 and the front cleat piece 102 are both circular and have the same diameter. Thus, the sizes of the rear cleat piece 101 and the front cleat piece 102 are reduced, and the sizes of the entire adjusting mechanism 100 and the headlamp system are reduced, thereby improving the overall appearance of the vehicle.

Further, the outer contour diameter of the rear cleat piece 101 and the front cleat piece 102 is d, and t1 satisfies: 1/23 ≦ t1/d ≦ 1/17, the t2 and the d satisfying: 1/3 is not less than t2/d is not less than 1/2.5. Thus, when the dimensions of the rear cleat pocket 101 and the front cleat pocket 102 are determined, the thicknesses of the rear cleat pocket 101 and the front cleat pocket 102 can also be determined. It will be appreciated that there is a uniform transition between the thin and thick ends of the trailing and leading

gussets

101 and 102.

In a specific example of the present invention, the outer contour of the rear cleat piece 101 and the front cleat piece 102 has a diameter d, and d satisfies: d is more than or equal to 45mm and less than or equal to 55 mm. Therefore, the size of the headlamp assembly is not too large while ensuring that the headlamp assembly has enough output.

Of course, it is understood that the outer contour diameters of the rear cleat pockets 101 and the front cleat pockets 102 may be designed by a designer according to the size of the vehicle model, and are not limited herein.

In some embodiments of the present invention, the index of refraction of the back wedge angle piece 101 and the front wedge angle piece 102 is n, and n satisfies: n is more than or equal to 1.3 and less than or equal to 1.7. After many experiments, it is found that when the refractive indexes of the rear wedge angle piece 101 and the front wedge angle piece 102 satisfy the above conditions, the sizes of the rear wedge angle piece 101 and the front wedge angle piece 102 are not too large, and it can be ensured that the light passing through the rear wedge angle piece 101 and the front wedge angle piece 102 can have a sufficient deflection angle.

In some embodiments of the present invention, the rear cleat piece 101 and the front cleat piece 102 are made of glass, acrylic, silicone, or plastic. It will be appreciated that the above materials preferably meet the above refractive index requirements.

Of course, the refractive indices of the two wedge segments may also be different.

For example, in some other embodiments of the present invention, the index of refraction of trailing wedge plate 101 is different than the index of refraction of leading wedge plate 102. Thus, the exit angles of the light rays passing through the rear wedge angle piece 101 and the front wedge angle piece 102 can be adjusted according to the difference in refractive index between the rear wedge angle piece 101 and the front wedge angle piece 102.

In this embodiment, it is understood that the rear wedge angle plate 101 and the front wedge angle plate 102 may be made of different materials, so as to realize that the refractive index of the rear wedge angle plate 101 is different from that of the front wedge angle plate 102.

In this embodiment, the adjustment mechanism 100 further comprises a drive assembly arranged for driving the front and

rear cleat

102, 101, respectively, to rotate about their own rotational axis. The driving assembly comprises a first driving piece and a second driving piece, two driving pieces are needed to be arranged, such as the first driving piece and the second driving piece are used for driving the rear wedge angle piece and the front wedge angle piece respectively, and due to the fact that the refractive indexes of the two driving pieces are different, deflection of light in multiple directions such as left, right, upward and downward directions and the coupling direction can be achieved through matching different driving speeds of the two driving pieces. In this embodiment, the driving member may adopt a motor, so that by controlling the two motors to operate at different driving speeds, the difference of the rotation speeds of the two wedge angle pieces can be realized, thereby matching the difference of the refractive indexes, and also realizing the requirement of the present invention on the light deflection.

Optionally, the first driving member is a first motor and the second driving member is a second motor.

The operation of the adjustment mechanism 100 is described in detail below.

The adjusting mechanism 100 of the embodiment of the present invention further includes a controller, which is connected to the driving assembly and is configured to control the driving assembly to drive the front wedge angle piece 102 and the rear wedge angle piece 101 to rotate in opposite directions so as to deflect the emergent light emitted from the two wedge angle pieces left or right, or to control the driving assembly to drive the front wedge angle piece 102 and the rear wedge angle piece 101 to rotate in the same direction and then rotate in opposite directions so as to deflect the emergent light emitted from the two wedge angle pieces upward or downward.

The controller can control the driving assembly according to the rotation angle of the steering wheel, the road condition or the driving state of the vehicle, so that the driving assembly drives the front wedge angle piece 102 and the rear wedge angle piece 101 to rotate to deflect the light emitted by the vehicle lamp according to the actual condition.

The rear cleat corner piece 101 and the front cleat corner piece 102 have initial positions, and when the rear cleat corner piece 101 and the front cleat corner piece 102 are in the initial positions, the thin end of the rear cleat corner piece 101 is located at the uppermost side, the rear end of the rear cleat corner piece 101 is located at the lowermost side, the thin end of the front cleat corner piece 102 is located at the lowermost side, and the rear end of the front cleat corner piece 102 is located at the uppermost side.

The following specific examples are all adjusted with the initial state as the initial stage.

It should be noted that "clockwise" and "counterclockwise" in this context are the positions behind the rear cleat 101 and behind the front cleat 102 to adjust the rear cleat 101 and the front cleat 102, respectively.

When the first driving member drives the rear wedge angle piece 101 to rotate clockwise and the second driving member drives the front wedge angle piece 102 to rotate counterclockwise, the light rays emitted by the two wedge angle pieces horizontally deflect to the right. Preferably, the rear cleat piece 101 and the front cleat piece 102 rotate at the same speed and the same rotation angle. Therefore, light rays are more stable in the deflection process, and the irradiation effect of the headlamp is improved.

Therefore, when the vehicle rotates rightwards, the first driving piece and the second driving piece are only required to be controlled to drive the rear wedge angle piece 101 to rotate clockwise and the front wedge angle piece 102 to rotate anticlockwise, so that the light level deflects rightwards, the adjustment is simple and convenient, and the response speed of light deflection is high.

When the first driving member drives the rear wedge angle piece 101 to rotate counterclockwise and the second driving member drives the front wedge angle piece 102 to rotate clockwise, the emergent light rays emitted by the two wedge angle pieces horizontally deflect leftwards. Preferably, the rear cleat piece 101 and the front cleat piece 102 rotate at the same speed and the same rotation angle. Therefore, the light is more stable in the deflection process, and the irradiation effect of the headlamp is improved.

Therefore, when the vehicle rotates leftwards, the first driving piece and the second driving piece are only required to be controlled to drive the rear wedge angle piece 101 to rotate anticlockwise and the front wedge angle piece 102 to rotate clockwise, so that the light can horizontally deflect leftwards, the adjustment is simple and convenient, and the response speed of light deflection is high.

When the first driving piece and the second driving piece respectively drive the rear wedge angle piece 101 and the front wedge angle piece 102 to rotate clockwise by 90 degrees, the first driving piece drives the rear wedge angle piece 101 to rotate clockwise, and the second driving piece drives the front wedge angle piece 102 to rotate anticlockwise, emergent light rays emitted by the two wedge angle pieces vertically deflect upwards. Preferably, the rear cleat piece 101 and the front cleat piece 102 rotate at the same speed and the same rotation angle. Therefore, the light is more stable in the deflection process, and the irradiation effect of the headlamp is improved.

Therefore, when the vehicle goes up a slope, only the first driving piece and the second driving piece are required to be controlled to respectively drive the rear wedge angle piece 101 and the front wedge angle piece 102 to rotate clockwise by 90 degrees, and then the rear wedge angle piece 101 is driven to rotate clockwise and the front wedge angle piece 102 rotates anticlockwise, so that light can deflect vertically upwards, the adjustment is simple and convenient, and the response speed of light deflection is high.

When the first driving piece and the second driving piece respectively drive the rear wedge angle piece 101 and the front wedge angle piece 102 to rotate clockwise by 90 degrees, the first driving piece drives the rear wedge angle piece 101 to rotate anticlockwise, and the second driving piece drives the front wedge angle piece 102 to rotate clockwise, emergent light rays emitted by the two wedge angle pieces vertically deflect downwards. Preferably, the rear cleat piece 101 and the front cleat piece 102 rotate at the same speed and the same rotation angle. Therefore, the light is more stable in the deflection process, and the irradiation effect of the headlamp is improved.

Therefore, when the vehicle runs downhill, the first driving piece and the second driving piece are only required to be controlled to respectively drive the rear wedge angle piece 101 and the front wedge angle piece 102 to rotate clockwise by 90 degrees, and then the rear wedge angle piece 101 and the front wedge angle piece 102 are driven to rotate anticlockwise and rotate clockwise, so that light can deflect downwards vertically, the adjustment is simple and convenient, and the response speed of light deflection is high.

When the first driving piece and the second driving piece respectively drive the rear wedge angle piece 101 and the front wedge angle piece 102 to rotate clockwise and the rotation angle is smaller than 90 degrees, the first driving piece drives the rear wedge angle piece 101 to rotate clockwise, and the second driving piece drives the front wedge angle piece 102 to rotate anticlockwise, emergent light emitted by the two wedge angle pieces deflects towards the upper right.

When the first driving piece and the second driving piece respectively drive the rear wedge angle piece 101 and the front wedge angle piece 102 to rotate clockwise and the rotation angle is smaller than 90 degrees, the first driving piece drives the rear wedge angle piece 101 to rotate anticlockwise, and the second driving piece drives the front wedge angle piece 102 to rotate clockwise, emergent light emitted by the two wedge angle pieces deflects towards the lower left.

When the first driving piece and the second driving piece respectively drive the rear wedge angle piece 101 and the front wedge angle piece 102 to rotate anticlockwise and the rotation angle is smaller than 90 degrees, the first driving piece drives the rear wedge angle piece 101 to rotate clockwise, and the second driving piece drives the front wedge angle piece 102 to rotate anticlockwise, emergent light rays emitted by the two wedge angle pieces deflect towards the upper left.

When the first driving piece and the second driving piece respectively drive the rear wedge angle piece 101 and the front wedge angle piece 102 to rotate anticlockwise and the rotation angle is smaller than 90 degrees, the first driving piece drives the rear wedge angle piece 101 to rotate anticlockwise, and the second driving piece drives the front wedge angle piece 102 to rotate clockwise, emergent light emitted by the two wedge angle pieces deflects towards the upper right.

The adjustment modes all need to be adjusted when the rear wedge angle piece 101 and the front wedge angle piece 102 return to zero positions, and the invention also provides an adjustment mode which does not need to return the rear wedge angle piece 101 and the front wedge angle piece 102 to zero and directly calculates the deflection angles of the rear wedge angle piece 101 and the front wedge angle piece 102 on the deflected angles.

Specifically, the control module determines the angle of the vehicle lamp required to deflect according to sensors such as a steering wheel angle, a map, a front axle position and a rear axle position, reversely calculates the target positions of the rear wedge angle piece 101 and the front wedge angle piece 102, and drives the rear wedge angle piece 101 and the front wedge angle piece 102 to deflect to the target positions from the current positions by the first driving piece and the second driving piece without returning the positions of the rear wedge angle piece 101 and the front wedge angle piece 102 to zero positions.

The clockwise deflection or the counterclockwise deflection of the rear wedge angle piece 101 and the front wedge angle piece 102 needs to be calculated according to the target position and the current stage position, and the rotation direction with the difference value smaller than 180 degrees is selected. The rotation angles of the rear cleat 101 and the front cleat 102 may be implemented according to a reverse lookup table.

Therefore, the headlamp adjusting mechanism 100 of the embodiment of the invention has a simple structure, can realize the adjustment of the headlamp in any direction, has a wide emergent range of light, is convenient to adjust, has high response speed of light deflection, and improves the driving feeling of a driver.

The headlamp system of the embodiment of the invention also comprises a heat dissipation system of the vehicle lamp.

The light source of the pixel type car lamp is a laser light source, and the emitting device of the laser light source is a laser diode, so that the light source has the advantages of high brightness, low power consumption and the like, but the generated heat is more. If the normal work of the device is ensured, a set of heat dissipation system must be designed to dissipate heat.

Therefore, the invention provides a heat dissipation system of a vehicle lamp, which can cool the vehicle lamp and dissipate a large amount of heat generated by the vehicle lamp.

The headlamp system of the embodiment of the invention further comprises a heat dissipation system, and the heat dissipation system of the embodiment of the invention can be applied to heat dissipation of the projection headlamp, but is not limited to the application.

As shown in fig. 7, the heat dissipation system of the vehicle lamp according to the embodiment of the present invention may include a light source assembly cooling plate, an air-cooling water discharge 129, and a heat exchanger 130.

Wherein, the light source subassembly cooling plate can cool off light source and the relevant subassembly of light source, avoids the high temperature of light source subassembly and influences its work. The light source assembly of the embodiment of the present invention includes: a light source and a DMD chip, but is not limited thereto.

Air-cooling water drain 129 is optionally connected to the light source module cooling plate to dissipate heat absorbed by the light source module cooling plate. The heat exchanger 130 is connected to a compressor of the vehicle, and the heat exchanger 130 is selectively connected to the light source assembly cooling plate to transfer heat absorbed by the light source assembly cooling plate to a refrigerant of the compressor.

That is, the heat of the light source module absorbed by the cooling plate of the light source module can be dissipated by two ways, one way is to transfer the heat to the air-cooled water discharge 129, and the cooling water carrying the heat exchanges heat with air to dissipate the heat to the atmosphere; another way is to transfer to the heat exchanger 130, and the cooling water carrying heat exchanges heat with the low temperature refrigerant of the compressor to transfer heat to the compressor.

It should be noted that the heat absorbed by the cooling plates of the light source module can be transferred to the air-cooled water discharge 129 through the cooling medium, and the heat absorbed by the water cooling plates 139 of the light source can be transferred to the heat exchanger 130 through the cooling medium. The light source assembly cooling plate and the air-cooled water discharge 129 and the light source assembly cooling plate and the air-cooled water discharge 129 can be connected through pipelines, and optionally, the cooling medium can be cooling water.

When the heat dissipation capacity of the light source assembly is small, the cooling plate of the light source assembly can be connected with the air-cooled water discharge 129, and then the heat can be carried to the air-cooled water discharge 129 by the cooling water and dissipated to the atmosphere; when the heat dissipation capacity of the light source assembly is large, the cooling plate of the light source assembly can be connected with the heat exchanger 130, and then the heat generated by the light source assembly can be carried to the heat exchanger 130 by the cooling water and transferred to the refrigerant.

Generally, the heat dissipation effect when the light source module cooling plate is connected to the heat exchanger 130 is higher than the heat dissipation effect when the light source module cooling plate is connected to the air-cooled water drain 129.

According to the cooling system of the vehicle lamp, the air-cooling water drain 129 and the heat exchanger 130 which are connected with the cooling plate of the light source assembly are arranged, so that the heat of the light source absorbed by the cooling plate of the light source assembly can be dissipated through the air-cooling water drain 129 or the heat exchanger 130, the temperature of the light source assembly is greatly reduced, the light source assembly can be ensured to work at a proper temperature, and the working efficiency of the light source assembly is improved at least to a certain extent.

In some embodiments of the present invention, as shown in fig. 7, the cooling plate of the light source module is connected end-to-end with the air-cooled water discharge 129 to form an air-cooled heat dissipation passage, and the air-cooled heat dissipation passage is provided with a first on-off valve 131.

When the first on-off valve 131 is opened, the air-cooled heat dissipation passage is opened, the cooling water can circulate in the air-cooled heat dissipation passage, the cooling water can bring the heat of the light source assembly absorbed by the cooling plate of the light source assembly to the air-cooled water discharge 129, and the air-cooled water discharge 129 exchanges heat with air to dissipate the heat to the atmosphere.

In some embodiments of the present invention, a first water pump 132 is further disposed on the air-cooling heat dissipation channel. The first water pump 132 can improve the circulation effect of the air-cooled heat dissipation channel, so that the cooling water can circulate in the air-cooled heat dissipation channel quickly, and the heat dissipation effect of the air-cooled water discharge 129 is improved.

In some embodiments of the present invention, the light source module cooling plate is connected end to end with the heat exchanger 130 to form a water-cooling heat dissipation channel, and the water-cooling heat dissipation channel is provided with a second on-off valve 133.

When the second on-off valve 133 is opened, the water-cooling heat dissipation channel is turned on, the cooling water can circulate in the water-cooling heat dissipation channel, the cooling water can bring the heat of the light source assembly absorbed by the light source water-cooling plate 139 to the heat exchanger 130, and the cooling water and the cooling medium exchange heat in the heat exchanger 130 to dissipate the heat to the cooling medium.

In some embodiments of the present invention, a second water pump 134 is further disposed on the water-cooling heat dissipation channel. The second water pump 134 can improve the circulation effect of the water-cooling heat dissipation channel, so that the cooling water can quickly circulate in the water-cooling heat dissipation channel, and the heat dissipation effect of the heat exchanger 130 is improved.

In some embodiments of the present invention, the water outlet of the light source assembly cooling plate, the water inlet of the air-cooled water discharge 129 and the water inlet of the heat exchanger 130 are connected by a first three-way valve 135; the water inlet of the cooling plate of the light source assembly, the water outlet of the air-cooled water discharge 129 and the water outlet of the heat exchanger 130 are connected through a second three-way valve 136.

Therefore, the structure of the heat dissipation system is simplified, the heat dissipation channel where the light source assembly cooling plate is located is simpler, and the cost of the heat dissipation system is reduced to a certain extent at least.

Further, a first check valve 137 is disposed between the second three-way valve 136 and the air-cooled water discharge 129, and a second check valve 138 is disposed between the second three-way valve 136 and the heat exchanger 130.

It is understood that the flow direction of the first check valve 137 is the direction from the outlet of the air-cooled water 129 to the inlet of the cooling plate of the light source assembly, and the flow direction of the second check valve 138 is the direction from the outlet of the heat exchanger 130 to the inlet of the cooling plate of the light source assembly.

Therefore, when one of the air-cooling heat dissipation channel and the water-cooling heat dissipation channel is conducted, the cooling liquid cannot enter the other one of the air-cooling heat dissipation channel and the water-cooling heat dissipation channel.

In some embodiments of the present invention, the light source assembly cooling plate includes a light source water cooling plate 139 for cooling the light source body and a DMD water cooling plate 140 for cooling the DMD chip, and the light source water cooling plate 139 and the DMD water cooling plate 140 are disposed in series.

As shown in fig. 8-9, specifically, the water outlet of the DMD water cooling plate 140 is connected to the water inlet of the light source water cooling plate 139, the water inlet of the DMD water cooling plate 140, the water outlet of the air-cooled water discharge 129 and the water outlet of the heat exchanger 130 are connected by the second three-way valve 136, and the water outlet of the light source water cooling plate 139, the water inlet of the air-cooled water discharge 129 and the water inlet of the heat exchanger 130 are connected by the first three-way valve 135.

The DMD water cooling plate 140 includes a water inlet connector 142, a water outlet connector 143, and a DMD water cooling plate body 141, the water inlet connector 142 and the water outlet connector 143 are respectively communicated with a cooling water channel in the DMD water cooling plate body 141, wherein the water inlet connector 142 and the water outlet connector 143 are pagoda head connectors.

The pagoda head joint comprises a matching end and a free end which are matched with the DMD water cooling plate body 141, the cross-sectional area of the pagoda head joint body is gradually reduced in the direction from the matching end to the free end, and the periphery of the pagoda head joint is of a stepped structure. Therefore, the difficulty in matching the water inlet plug connector 142 and the water outlet plug connector 143 with the cooling water pipeline is reduced, and the sealing performance and the stability of the matching of the water inlet plug connector 142 and the water outlet plug connector 143 with the cooling water pipeline can be improved due to the fact that the peripheries of the water inlet plug connector 142 and the water outlet plug connector 143 are in the step-shaped structure.

In some embodiments of the present invention, the cooling water channels of the light source water-cooling plate 139 and the DMD water-cooling plate 140 are configured in a special-shaped structure to increase a contact area with the cooling liquid. For example, a partition plate, a protrusion, or the like may be added to the cooling water passage to increase the contact area of the cooling water passage. The DMD water cooled plate 140 and the light source water cooled plate 139 will be described in further detail in the description of the embodiments.

The DMD water cooling plate 140 and the light source water cooling plate 139 of the embodiment of the invention are described in detail below, and the DMD water cooling plate 140 may cool the DMD chip.

As shown in fig. 7 to 9, a DMD water-cooling plate 140 according to an embodiment of the present invention may include a DMD water-cooling plate body 141, a water inlet connector 142, and a water outlet connector 143.

Wherein, be provided with DMD water-cooling plate cooling channel 145 in the DMD water-cooling plate body 141, be provided with DMD water-cooling plate water inlet and the DMD water-cooling plate delivery port with DMD water-cooling plate cooling channel 145 both ends intercommunication on the DMD water-cooling plate body 141.

The water inlet plug-in connector 142 is arranged at the water inlet of the DMD water cooling plate, the water outlet plug-in connector 143 is arranged at the water outlet of the DMD water cooling plate, and the water inlet plug-in connector 142 and the water outlet plug-in connector 143 are pagoda connectors.

According to the DMD water cooling plate 140 of the embodiment of the invention, the DMD water cooling plate body 141 is provided with the DMD water cooling plate cooling channel 145, and the DMD water cooling plate body 141 can fully cool the DMD chip.

In addition, the sealing performance of the DMD water cooling plate 140 can be obviously improved by adopting the water inlet plug-in connector 142 and the water outlet plug-in connector 143 of the pagoda head connector, and the installation efficiency is improved at least to a certain extent.

In some embodiments of the present invention, as shown in fig. 8 and 17, the DMD water-cooled panel body 141 includes a DMD water-cooled panel housing 144 and a DMD water-cooled panel cover 162, the DMD water-cooled panel housing 144 has an opening, and the DMD water-cooled panel cover 162 is used for covering the opening. DMD water-cooling plate cooling channel 145 has been injectd with DMD water-cooling plate apron 162 to DMD water-cooling plate casing 144, when needs maintain DMD water-cooling plate body 141, can conveniently dismantle DMD water-cooling plate apron 162 from DMD water-cooling plate casing 144, and then reduced the maintenance degree of difficulty, improved maintenance efficiency.

Further, as shown in fig. 8, a plurality of partitions 146 are disposed on the DMD water cooling plate housing 144 or the DMD water cooling plate cover plate 162, and the plurality of partitions 146 partition the DMD water cooling plate cooling channel 145.

From this, showing and having improved the area of contact of DMD cooling water course with the cooling water, the cooling water can contact with DMD water-cooling plate body 141 better, has improved DMD water-cooling plate 140's heat-absorbing capacity, and DMD water-cooling plate 140 can follow the DMD chip and absorb more heats, ensures that the DMD chip is in relatively stable operating temperature.

In some embodiments of the present invention, as shown in fig. 17, the DMD chip is mounted on the DMD water cooled plate housing 144, and in particular, the DMD chip is mounted on the side wall of the DMD water cooled plate housing 144 opposite to the opening. Wherein, a spacer 163 is disposed between the DMD chip and the DMD water cooling plate housing 144.

Therefore, the stability of the DMD chip mounted on the DMD water cooling plate shell 144 is improved, and the DMD chip is not easy to fall off from the DMD water cooling plate shell 144. Preferably, the spacers 163 include a first spacer 164 and a second spacer 165, and the first spacer 164 and the second spacer 165 are disposed to overlap.

In some embodiments of the present invention, as shown in fig. 9, the DMD water cooled panel 140 further includes a protective casing 151, and the DMD water cooled panel body 141 is disposed within the protective casing 151. Therefore, the DMD chip and the DMD water cooling plate body 141 can be protected, and the DMD chip and the DMD water cooling plate 140 are prevented from being damaged by external factors.

Further, the protective shell 151 includes a protective shell body 152 and a protective shell cover plate 153, the protective shell cover plate 153 is covered on the protective shell body 152, an installation space of the protective shell 151 is defined between the protective shell body 152 and the protective shell cover plate 153, and the DMD water-cooling plate body 141 is arranged in the installation space of the protective shell 151.

Further, the protective case body 152 and the protective case cover 153 are fixed by a screw fastener. Therefore, the protective shell body 152 and the protective shell cover plate 153 can be mounted and dismounted more quickly and conveniently, and the mounting efficiency and the maintenance efficiency of the protective shell 151 are improved.

Of course, it is understood that the protective casing body 152 and the protective casing cover 153 may be fixed in other manners, and are not limited herein.

In some embodiments of the present invention, the DMD water cooled plate body 141 is mounted to the light path assembly by fasteners. From this, DMD water-cooling board 140 installation and dismantlement are more convenient, have improved the installation effectiveness of DMD water-cooling board body 141 to a certain extent at least.

Further, as shown in fig. 17, a fastening member is inserted through the DMD water-cooling plate body 141, the fastening member is sleeved with a fastening spring 166 and a fastening snap spring 167, and the fastening spring 166 and the fastening snap spring 167 are respectively disposed on two sides of the DMD water-cooling plate body 141, that is, the DMD water-cooling plate body 141 is disposed between the fastening spring 166 and the fastening snap spring 167.

Therefore, the phenomenon that the fastening piece loosens is effectively avoided, and the stability of the fastening piece for fastening the DMD water cooling plate body 141 and the connection of the light path component is improved.

The light source water-cooling plate 139 of the embodiment of the present invention is described in detail below.

As shown in fig. 10 to 11, the light source water cooling plate 139 according to the embodiment of the present invention includes a light source water cooling plate body 147, a light source water cooling plate cooling channel 148 is disposed in the light source water cooling plate body 147, a light source water cooling plate water inlet and a light source water cooling plate water outlet which are communicated with two ends of the light source water cooling plate cooling channel 148 are disposed on the light source water cooling plate body 147, wherein an open mounting groove is formed on the light source body, and a part of the light source is mounted in the mounting groove.

The cooling water can enter the light source water cooling plate cooling channel 148 from the light source water cooling plate water inlet and then flow out from the light source water cooling plate water outlet. The light source may be mounted directly or indirectly on the light source water-cooled plate body 147, and the light source water-cooled plate body 147 may cool the light source to enable the light source to be maintained at a suitable operating temperature.

As shown in fig. 18, the light source water-cooling plate body 147 is formed with a light source water-cooling plate installation groove 154 having an open top, and at least a portion of the light source is installed in the light source water-cooling plate installation groove 154. Therefore, the light source arranged in the light source water cooling plate mounting groove 154 can be cooled in an all-around manner, the cooling efficiency of the light source water cooling plate 139 is improved, the light source can work at a proper temperature, and the working efficiency of the light source is improved at least to a certain extent.

According to the light source water cooling plate 139 of the embodiment of the invention, the light source water cooling plate installation groove 154 for installing the light source is formed on the light source water cooling plate body 147, so that the light source can be sufficiently cooled, and the cooling efficiency of the light source water cooling plate 139 is improved.

In some embodiments of the present invention, the light source water cooling plate cooling channel 148 is disposed around the light source water cooling plate mounting groove 154. Therefore, the light source water cooling plate cooling channel 148 can more fully cool the light source, and the cooling efficiency of the light source water cooling plate 139 is improved.

In some embodiments of the present invention, as shown in fig. 18, the light source water cooling plate body 147 includes a light source water cooling plate housing 149 and a light source water cooling plate cover 155, the light source water cooling plate cover 155 covering the light source water cooling plate housing 149. The light source water cooling plate housing may be secured with the light source water cooling plate cover 155 by threaded fasteners.

Thus, the light source water-cooled plate cover 155 can be easily mounted on the light source water-cooled plate case 149, improving the mounting efficiency of the light source water-cooled plate body 147. When the light source water cooling plate 139 needs to be maintained, the light source water cooling plate cover 155 can be easily detached from the light source water cooling plate casing 149, so that the maintenance efficiency of the light source water cooling plate body 147 is improved at least to a certain extent.

The light source water cooling plate shell 149 may be provided with a protrusion structure 150, and the protrusion structure 150 is located in the light source water cooling plate cooling water channel 148, so that a contact area between the cooling water and the light source water cooling plate cooling water channel 148 may be increased, and a heat dissipation effect of the light source water cooling plate shell 149 may be improved.

Further, as shown in fig. 18, the light source water cooling plate 139 further includes a light source groove plate 156, another part of the light source is installed on the light source groove plate 156, a light source groove plate installation groove is formed on a side wall of the light source water cooling plate housing facing the light source water cooling plate cover plate 155, and the light source groove plate 156 is arranged in the light source groove plate installation groove. The light source water-cooling plate body 147 can absorb heat of the light source on the light source trough plate 156, and the working stability of the light source is prevented from being influenced by overhigh heat of the light source.

Further, the light source groove plate 156 is provided with a plurality of light source grooves 157, the one portion of the light source is aligned with the plurality of light source grooves 157 of the central portion, and the plurality of light source grooves 157 of the peripheral portion receive the other portion of the light source.

That is, although the portion of the light source is not directly mounted on the light source slot plate 156, the light source slot 157 is provided in the central portion of the light source slot plate 156 to avoid the light emitted from the portion of the light source, and to prevent the light source slot plate 156 from blocking the light emitted from the portion of the light source.

In some embodiments of the present invention, the light source water cooling plate 139 further includes a light source lens mounting plate assembly, the light source lens mounting plate assembly is provided with a plurality of lens mounting holes for mounting lenses, and the plurality of lens mounting holes are disposed corresponding to the plurality of light source grooves 157.

Further, the light source lens mounting plate assembly includes a light source lens groove plate 158, a light source lens thin pressing sheet 159 and a light source lens pressing plate 160, and the light source lens groove plate 158 is fixed on the light source groove plate 156 by the light source lens thin pressing sheet 159 and the light source lens pressing plate 160 in a pressing manner.

The light source lens mounting plate subassembly from the bottom up does in proper order: a light source lens slot plate 158, a light source lens sheeting 159, and a light source lens platen 160. The light source lens sheeting 159 and the light source lens press plate 160 are primarily intended to reduce lens-to-lens interactions when adjusting the light source lenses.

Preferably, the light source groove plate 156 is formed with a mounting plate assembly receiving groove corresponding to the light source lens mounting plate assembly. Therefore, the light source lens mounting plate assembly is more stably mounted.

In some embodiments of the present invention, the light source water cooling plate 139 further comprises a control plate 161, and the control plate 161 is in communication with the light source to control the brightness of the light source. Thereby, the brightness of the projection area can be increased by changing the brightness of the light source.

The heat dissipation system of the vehicle lamp according to the embodiment of the invention includes the light source water cooling plate 139 of the above-mentioned embodiment, and since the heat dissipation system of the vehicle lamp according to the embodiment of the invention has the light source water cooling plate 139, the heat of the light source can be dissipated more effectively, so that the light source is kept at a relatively stable working temperature.

A light source module according to one embodiment of the present invention is described in detail below.

The light source assembly according to the embodiment of the present invention includes a light source 120, a converging-parallel mirror assembly, a diffuser sheet 121, and a first converging lens 122.

As shown in fig. 12, the light source 120 includes a central light source 120a and a peripheral light source 120b, the peripheral light source 120b is disposed at the periphery of the central light source 120a, and the central light source 120a and the peripheral light source 120b are independently controlled, that is, the brightness of the central light source 120a and the brightness of the peripheral light source 120b can be controlled separately, and the brightness of the central light source 120a and the brightness of the peripheral light source 120b are not affected when the brightness of the central light source 120.

As shown in fig. 15, the light emitted from the light source 120 passes through the converging parallel mirror assembly and then converges and exits in parallel, that is, the converging parallel mirror assembly has a light-converging function, so that the diverging light can be converged together, and the brightness of the light is improved; meanwhile, the light rays can be emitted in parallel.

The light rays emitted from the converging parallel mirror assembly are emitted through the scattering sheet 121, the scattering sheet 121 can enable the light rays to be more uniform, and the influence on the irradiation effect of the car lamp due to overhigh brightness of a local area is avoided.

The light emitted from the diffuser sheet 121 passes through the first converging lens 122 and then exits, and the first converging lens 122 can converge the light emitted from the diffuser sheet 121.

The light rays emitted from the peripheral light source 120b after passing through the converging parallel mirror assembly, the diffuser 121 and the first converging lens 122 are emitted to the central area, and the light rays emitted from the central light source 120a after passing through the converging parallel mirror assembly, the diffuser 121 and the first converging lens 122 are emitted to the peripheral area.

According to the light source module of the embodiment of the invention, the central light source 120a and the peripheral light source 120b can be separately controlled, and the brightness in the central light source 120a and the brightness in the peripheral light source 120b can be adjusted without affecting each other, so that the brightness in the central illumination area and the brightness in the peripheral illumination area can be respectively adjusted, and the brightness in the central illumination area and the brightness in the peripheral illumination area can respectively meet the requirements for use.

In some embodiments of the present invention, as shown in fig. 15, the converging-parallel lens assembly includes a second converging lens 123 and a concave lens 124, the light rays emitted from the central light source 120a and the peripheral light source 120b are converged and emitted through the second converging lens 123, and the light rays emitted from the second converging lens 123 are emitted in parallel through the concave lens 124.

The light source module according to the embodiment of the present invention further includes a cylindrical mirror 125, and the light emitted from the first condensing lens 122 is emitted through the cylindrical mirror 125. The cylindrical mirror 125 can appropriately collect the light, and when the light emitted from the first collecting lens 122 does not satisfy the usage requirement, the cylindrical mirror 125 can be used to perform the adjustment again.

In some embodiments of the present invention, at least one of the central light source 120a and the peripheral light source 120b is a fiber coupled laser light source.

Specifically, the central light source 120a is an optical fiber coupled laser light source, the optical fiber coupled laser light source includes a central light source body and an optical fiber, the central light source body is disposed at one end of the optical fiber, the optical fiber has a light path transmission channel therein, and light emitted from the central light source body is reflected on a wall of the light path transmission channel for multiple times and then emitted from the other end of the light.

The central light source 120a adopts a fiber coupled laser light source, which can reduce the light loss, reduce the energy consumption, and at least improve the brightness of the central light source 120a to a certain extent.

In some embodiments of the present invention, the color temperature of the central light source 120a and the peripheral light sources 120b is tunable. For example, when the vehicle is driven in a foggy day, the color temperatures of the central light source 120a and the peripheral light source 120b may be changed, so that the color temperatures of the central light source 120a and the peripheral light source 120b are yellow, and the light emitted by the light source assembly has stronger penetrability.

Further, the central light source 120a and the peripheral light source 120b are each a three primary color laser light source.

Specifically, as shown in fig. 13 and 14, each of the central light source 120a and the peripheral light source 120b includes a red laser diode 126, a green laser diode 127, and a blue laser diode 128. The color temperature of the light emitted from the central light source 120a and the peripheral light sources 120b is adjusted by adjusting the brightness or the number of lights on each of the red laser diode 126, the green laser diode 127, and the blue laser diode 128.

More specifically, the peripheral light source 120b includes a plurality of red laser diodes 126, a plurality of green laser diodes 127, and a plurality of blue laser diodes 128. Among them, the plurality of green laser diodes 127 are disposed inside the peripheral light source 120b, the plurality of red laser diodes 126 are disposed outside the peripheral light source 120b, and the plurality of blue laser diodes 128 are disposed between the plurality of green laser diodes 127 and the plurality of red laser diodes 126. Therefore, the color temperature of the light emitted by the peripheral light source 120b is more uniform, and the overall effect of the light emergence of the car lamp is improved.

The number of red laser diodes 126 is n1, the number of green laser diodes 127 is n2, the number of blue laser diodes 128 is n3, and n1, n2 and n3 satisfy the following relations: (14-18), (6-10) and (1-5).

The central light source 120a includes a plurality of red laser diodes 126, a plurality of green laser diodes 127, and a plurality of blue laser diodes 128. Among them, a plurality of green laser diodes 127 are disposed inside the central light source 120a, a plurality of red laser diodes 126 are disposed outside the central light source 120a, and a plurality of blue laser diodes 128 are disposed between the plurality of green laser diodes 127 and the plurality of red laser diodes 126. Therefore, the color temperature of the light emitted by the central light source 120a is more uniform, and the overall effect of the light emitting of the car lamp is improved.

In some embodiments of the present invention, the power of the red laser diode 126, the green laser diode 127, and the blue laser diode 128 is adjustable. Thus, the luminances of the red, green, and

blue laser diodes

126, 127, and 128 can be adjusted by adjusting the powers of the red, green, and

blue laser diodes

126, 127, and 128.

Alternatively, in the peripheral light source 120b and the central light source 120a, the number of lighting of the plurality of red laser diodes 126 may be changed, the number of lighting of the plurality of green laser diodes 127 may be changed, and the number of lighting of the plurality of blue laser diodes 128 may be changed.

That is, each of the red laser diodes 126, each of the green laser diodes 127, and each of the blue laser diodes 128 can be individually controlled, thereby adjusting the color temperature of the light emitted from the central light source 120a and the peripheral light sources 120b by controlling the turning-on and turning-off of the diodes.

A light source module according to another embodiment of the present invention is described in detail below.

The light source component comprises a light source, a converging and parallel mirror component, a diffuser plate and a first converging lens.

As shown in fig. 16, the light source includes a central light source 120a and a peripheral light source 120b, and the central light source 120a and the peripheral light source 120b are independently controlled, that is, the brightness of the central light source 120a and the brightness of the peripheral light source 120b can be respectively controlled, and the brightness of the central light source 120a and the brightness of the peripheral light source 120b are not affected when the brightness of the central light source and the brightness of the peripheral light.

Light rays emitted by the light source pass through the converging parallel mirror assembly and then converge and exit in parallel, namely, the converging parallel mirror assembly has a light-converging effect and can converge divergent light rays together, so that the brightness of the light rays is improved; meanwhile, the light rays can be emitted in parallel.

The light from converging the parallel mirror subassembly passes through the diffuser plate outgoing, and the diffuser plate can make light more even, avoids local area's luminance too high and influences the car light and shines the effect.

The central light source 120a emits light rays after passing through the converging parallel mirror assembly, the diffuser plate and the first converging lens to the central area, and the peripheral light sources 120b emit light rays to the peripheral area surrounding the central area, wherein the peripheral light sources 120b are LED light sources.

The peripheral light source 120b is an LED light source, which can reduce the overall power consumption of the light source module, and in order to avoid excessive loss of light emitted from the LED light source during the transmission process, the LED light source can be placed behind the series of lenses or around the terminal lens of the series of lenses.

In some embodiments of the present invention, the converging-parallel lens assembly includes a second converging lens through which the light emitted from the central light source 120a converges and exits, and a concave lens through which the light exiting from the second converging lens exits in parallel.

The light source component according to the embodiment of the invention further comprises a cylindrical mirror, and the light rays emitted from the first converging lens are emitted through the cylindrical mirror. The cylindrical lens can appropriately converge the light, and when the light emitted from the first converging lens does not meet the use requirement, the cylindrical lens can be adopted for readjustment.

In some embodiments of the present invention, central light source 120a is a laser light source.

Further, the center light source 120a is a three primary color laser light source.

Specifically, as shown in fig. 14, the central light source 120a includes a red laser diode 126, a green laser diode 127, and a blue laser diode 128. The color temperature of the light emitted from the central light source 120a and the peripheral light sources 120b is adjusted by adjusting the respective brightness or the number of lighting of the red laser diode 126, the green laser diode 127, and the blue laser diode 128.

blue laser diodes

126, 127, and 128.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A light source assembly, comprising:

a light source (120), the light source (120) comprising: independently controlled central light sources (120a) and peripheral light sources (120b), the peripheral light sources (120b) being arranged at the periphery of the central light sources (120 a);

the light rays emitted by the light source (120) pass through the converging parallel mirror assembly and then converge and exit in parallel;

the diffuser (121), the light that emerges from the said convergent parallel mirror assembly passes the said diffuser (121) to emerge;

a first converging lens (122), through which the light emitted from the diffuser sheet (121) passes to exit;

the light rays emitted by the peripheral light source (120b) after passing through the converging parallel mirror assembly, the diffuser plate (121) and the first converging lens (122) are emitted to a central area, and the light rays emitted by the central light source (120a) after passing through the converging parallel mirror assembly, the diffuser plate (121) and the first converging lens (122) are emitted to a peripheral area surrounding the central area.

2. The light source assembly of claim 1, wherein the converging-parallel mirror assembly comprises: and the light rays emitted from the central light source (120a) and the peripheral light source (120b) are converged and emitted through the second converging lens (123), and the light rays emitted from the second converging lens (123) are emitted in parallel through the concave lens (124).

3. The light source assembly according to claim 1 or 2, further comprising: and a cylindrical mirror (125) through which the light emitted from the first condensing lens (122) passes and which is emitted.

4. The light source assembly according to claim 1, wherein at least one of the central light source (120a) and the peripheral light source (120b) is a fiber coupled laser light source.

5. The light source assembly according to claim 1, wherein the central light source (120a) is a fiber coupled laser light source comprising: the central light source body is arranged at one end of the optical fiber, an optical path transmission channel is arranged in the optical fiber, and light rays emitted by the central light source body are emitted from the other end of the optical fiber after being reflected for multiple times on the wall of the optical path transmission channel.

6. The light source assembly according to claim 1, wherein the central light source (120a) and the peripheral light source (120b) are color temperature tunable.

7. The light source assembly according to claim 6, wherein the central light source (120a) and the peripheral light source (120b) are each a three primary color laser light source.

8. The light source assembly according to claim 7, wherein each of the central light source (120a) and the peripheral light source (120b) comprises: a red laser diode (126), a green laser diode (127), and a blue laser diode (128).

9. The light source assembly according to claim 8, wherein the peripheral light source (120b) comprises: a plurality of red laser diodes (126), a plurality of green laser diodes (127), and a plurality of blue laser diodes (128);

the plurality of green laser diodes (127) are disposed inside the peripheral light source (120b), the plurality of red laser diodes (126) are disposed outside the peripheral light source (120b), the plurality of blue laser diodes (128) are disposed between the plurality of green laser diodes (127) and the plurality of red laser diodes (126), and the number of red laser diodes (126) is n1, the number of green laser diodes (127) is n2, the number of blue laser diodes (128) is n3, the n1, the n2 and the n3 satisfy the following relations: (14-18), (6-10) and (1-5).

10. The light source assembly according to claim 8, wherein the central light source (120a) comprises: a plurality of red laser diodes (126), a plurality of green laser diodes (127), and a plurality of blue laser diodes (128);

the plurality of green laser diodes (127) are disposed inside the center light source (120a), the plurality of red laser diodes (126) are disposed outside the center light source (120a), the plurality of blue laser diodes (128) are disposed between the plurality of green laser diodes (127) and the plurality of red laser diodes (126), and the number of red laser diodes (126) is n1, the number of green laser diodes (127) is n2, the number of blue laser diodes (128) is n3, the n1, the n2 and the n3 satisfy the following relations: (14-18), (6-10) and (1-5).

11. The light source assembly according to claim 1, wherein the brightness of the central light source (120a) and the peripheral light source (120b) is adjustable.

12. The light source module according to claim 9 or 10, wherein the number of the red laser diodes (126) to be lit is variable, the number of the green laser diodes (127) to be lit is variable, and the number of the blue laser diodes (128) to be lit is variable.