Vehicle lamp assembly and lighting system

Abstract

This application discloses a vehicle lamp assembly and a lighting system. The vehicle lamp assembly includes a base, a light-transmitting element, a fluorescent element, a reflector, and a light-blocking element. The base is used to connect a laser module, and the light-transmitting element is connected to the base. The fluorescent element is disposed on the side of the base facing the light-transmitting element and is located in the optical path of the designated laser; the fluorescent element is used to generate a designated fluorescence under the excitation of the designated laser, and the designated fluorescence is emitted to the outside through the light-transmitting element. The reflector is disposed in the optical path of the designated laser and is used to reflect the designated laser to the fluorescent element. The light-blocking element is disposed on the side of the reflector away from the base and is located on the optical axis corresponding to the designated laser incident on the reflector; the light-blocking element is used to block the designated laser. Since the vehicle lamp assembly uses a laser as the lighting source, the laser has a smaller spread and greater brightness. Under the premise of ensuring sufficient luminous flux, the size of the optical elements in the vehicle lamp assembly can be reduced, which is beneficial for achieving a miniaturized and high-brightness lighting design for the vehicle lamp assembly.

Description

Technical Field

[0001] This application relates to the field of automotive lighting technology, and more specifically, to an automotive lighting assembly and lighting system. Background Technology

[0002] With the continuous development and maturation of intelligent driving technology, users' requirements for vehicle lights are also increasing. Vehicle lights are not only lighting tools, but also an important component of intelligent driving systems. However, current vehicle lights still face many challenges in terms of structure and performance. On the one hand, traditional vehicle lights have complex structures and occupy a large amount of space, making it difficult to meet the needs of modern automobiles for lightweighting and miniaturization; on the other hand, their light output brightness is insufficient, failing to provide adequate vision support for intelligent driving.

[0003] Therefore, designing a compact and high-brightness vehicle headlight has become a critical issue that researchers urgently need to address. Utility Model Content

[0004] This application provides a vehicle lamp assembly and a lighting system.

[0005] According to a first aspect of this application, an embodiment of this application provides a vehicle lamp assembly suitable for connecting a laser module. The laser module is used to generate a specified laser. The vehicle lamp assembly includes a base, a light-transmitting element, a fluorescent element, a reflective element, and a light-blocking element. The base is used to connect the laser module, and the light-transmitting element is disposed on one side of the base. The fluorescent element is disposed on the side of the base facing the light-transmitting element and is located on the optical path of the specified laser; the fluorescent element is used to generate specified fluorescence under the excitation of the specified laser, and the specified fluorescence is emitted to the outside through the light-transmitting element. The reflective element is disposed on the optical path of the specified laser and is used to reflect the specified laser to the fluorescent element. The light-blocking element is disposed on the side of the reflective element away from the base and is located on the optical axis corresponding to the specified laser incident on the reflective element; the light-blocking element is used to block the specified laser from emitting to the outside.

[0006] In some possible embodiments, the light-transmitting element includes an incident light side and an exit light side that are opposite to each other, with the specified fluorescence emitted to the outside via the exit light side. The specified laser incident on the reflector propagates in a direction from the incident light side to the exit light side, and the reflector and the light-blocking element are arranged sequentially in the propagation direction.

[0007] In some possible embodiments, the light-transmitting element includes a collimating portion and a reflecting portion connected together, with the reflecting portion surrounding the outer periphery of the collimating portion; the reflecting element is disposed between the reflecting portion and the base, and the angle between the propagation direction of the designated laser reflected by the reflecting element and the light-emitting surface where the fluorescent element is located is an acute angle.

[0008] In some possible embodiments, the light-transmitting element has a receiving cavity, and the fluorescent element is disposed in the receiving cavity; a portion of the reflective element is disposed opposite to the base to form a mounting cavity, and the mounting cavity is connected to the receiving cavity; at least a portion of the light-blocking element is disposed in the mounting cavity and abuts against the base and the reflective element; the reflective element is connected to the side of the light-blocking element facing the fluorescent element.

[0009] In some possible embodiments, the light-blocking member includes a body and a light-blocking part, the body abutting against the base; the light-blocking part is connected to the side of the body facing the receiving cavity and disposed in the mounting cavity, the light-blocking part abutting against the reflective part; wherein, the side of the light-blocking part facing the fluorescent element has a light-blocking surface, the light-blocking surface being inclined relative to the light-emitting surface of the fluorescent element; the reflective element is connected to the light-blocking surface.

[0010] In some possible embodiments, the headlight assembly also includes a heat sink fixed between the fluorescent element and the base.

[0011] In some possible embodiments, the laser module includes a laser connector for emitting a specified laser; the base is provided with a mounting groove that extends through opposite sides of the base; the laser connector is located on the side of the base away from the light-transmitting element and is embedded in the mounting groove; the specified laser is incident on the reflector through the mounting groove.

[0012] In some possible embodiments, the headlight assembly further includes a collimating lens located on the side of the base facing the reflector and embedded in a mounting groove; the specified laser light is collimated by the collimating lens before being incident on the reflector.

[0013] According to a second aspect of this application, embodiments of this application also provide a lighting system, the lighting system including a laser module and the above-mentioned vehicle lamp assembly, wherein the laser module is used to generate a specified laser; the vehicle lamp assembly is connected to the laser module and located on the optical path of the specified laser.

[0014] In some possible embodiments, the lighting system further includes a housing, within which the headlight assembly is housed. The laser module includes a laser generator, a laser connector, and an optical fiber; the laser generator and laser connector are respectively connected to the two ends of the optical fiber, the laser generator is located outside the housing, and the laser connector is connected to the headlight assembly.

[0015] This application provides a vehicle lamp assembly and a lighting system. The vehicle lamp assembly is suitable for connecting a laser module, which generates a specified laser beam. The vehicle lamp assembly may include a base for connecting the laser module, a light-transmitting element, a fluorescent element, a reflective element, and a light-blocking element. Specifically, the fluorescent element is disposed on the side of the base facing the light-transmitting element and is located in the optical path of the specified laser beam reflected by the reflective element. The fluorescent element generates a specified fluorescence under the excitation of the specified laser beam, and the specified fluorescence is emitted to the outside through the light-transmitting element.

[0016] On one hand, the vehicle headlight assembly in this application uses laser as the lighting source. Compared with LED light sources, laser has a smaller spread and higher brightness. While ensuring sufficient luminous flux, the size of optical elements in the vehicle headlight assembly can be reduced. In addition, the reflector in the vehicle headlight assembly can fold the laser light path, making the light path inside the vehicle headlight assembly more compact, which is conducive to achieving a miniaturized and high-brightness lighting design.

[0017] On the other hand, this application provides a light-blocking member on the side of the reflector away from the base, and the light-blocking member is located on the optical axis corresponding to the designated laser incident on the reflector. It is used to block the designated laser from being emitted to the outside in the event that the reflector falls off, which can effectively prevent the designated laser from being accidentally leaked into the external environment, thereby avoiding potential harm to personnel, such as preventing the laser from accidentally entering the eyes of pedestrians. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the lighting system provided in the embodiments of this application.

[0020] Figure 2 yes Figure 1 A cross-sectional structural diagram of the vehicle lamp assembly in the lighting system shown.

[0021] Figure 3 yes Figure 1 The diagram shows the optical path of the vehicle lamp assembly in the lighting system shown. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort are within the scope of protection of the present application.

[0023] This application provides a lighting system 100 that can be applied to a vehicle and serve as the vehicle's headlights (e.g., high beams, headlights, etc.). Please refer to... Figure 1The lighting system 100 may include a laser module 120 and a vehicle lamp assembly 200. The laser module 120 generates a specified laser L, and the vehicle lamp assembly 200 is connected to the laser module 120 and located in the optical path of the specified laser L. Specifically, the specified laser L may be a blue laser; for example, the center wavelength of the specified laser L may be between 445 nm and 470 nm.

[0024] In some possible embodiments, the laser module 120 may be integrated inside the headlight assembly 200 to make the overall structure of the lighting system 100 more compact.

[0025] In other possible embodiments, such as Figure 1 As shown, the lighting system 100 may further include a housing 140, within which the lamp assembly 200 is disposed. The housing 140 serves to secure and protect the lighting system 100. Specifically, the housing 140 may be made of metal (e.g., aluminum, copper, alloy, etc.) to provide better heat dissipation for the lamp assembly 200.

[0026] The laser module 120 is disposed outside the housing 140 to achieve spatial separation from the vehicle lamp assembly 200. Specifically, the laser module 120 may include a laser generator 1210, a laser connector 1230, and an optical fiber 1250. The laser generator 1210 is used to generate a specified laser L. Specifically, the laser generator 1210 may be a blue laser tube, a blue laser generating chip, etc. The laser generator 1210 and the laser connector 1230 are respectively connected to the two ends of the optical fiber 1250, and the laser connector 1230 is connected to the vehicle lamp assembly 200. Specifically, the optical fiber 1250 may be a quartz optical fiber, a plastic optical fiber, a fluoride optical fiber, etc.

[0027] Therefore, the designated laser L generated by the laser generator 1210 is coupled into the housing 1250 via the optical fiber 1250, coupled out through the laser interface 1230, and enters the vehicle lamp assembly 200. Specifically, the laser connector 1230 can be disposed in the housing 140, and the housing 140 is also provided with a mounting hole 1410 for the optical fiber 1250 to pass through. The mounting hole 1410 passes through opposite sides of the housing 140, and the end of the optical fiber 1250 away from the laser generator 1210 passes through the mounting hole 1410 and connects to the laser connector 1230.

[0028] In this embodiment, by placing the laser generator 1210 outside the housing 140, the overall size of the vehicle lamp assembly 200 can be reduced, achieving a miniaturized design. Furthermore, the high temperature generated by the laser generator 1210 during operation can be isolated outside the housing 140, reducing the temperature inside the housing 140 and ensuring the working efficiency of the lighting system 100. In addition, the laser generator 1210 can be flexibly installed in a heat dissipation area of ​​the vehicle via the optical fiber 1250; for example, the heat dissipation area can be the exhaust area of ​​the vehicle's internal cooling fan, thereby improving the heat dissipation efficiency of the laser generator 1210.

[0029] In this embodiment, the vehicle lamp assembly 200 is connected to the laser module 120 and is arranged in the optical path of the designated laser L. It is used to generate a designated fluorescence F under the excitation of the designated laser L and emit the designated fluorescence F to the outside world to realize the illumination function of the vehicle lamp.

[0030] Please see Figure 2 and Figure 3 The vehicle headlight assembly 200 may include a base 210, a light-transmitting element 220, a fluorescent element 230, a reflector 240, and a light-blocking element 250. The base 210 is used to connect the laser module 120, and the light-transmitting element 220 is disposed on one side of the base 210. The fluorescent element 230 is disposed on the side of the base 210 facing the light-transmitting element 220 and is located on the optical path of the designated laser L. The fluorescent element 230 is used to generate a designated fluorescence F under the excitation of the designated laser L, and the designated fluorescence F is emitted to the outside through the light-transmitting element 220. The reflector 240 is disposed on the optical path of the designated laser L and is used to reflect the designated laser L to the fluorescent element 230. The light-blocking element 250 is disposed on the side of the reflector 240 away from the base 210 and is located on the optical axis K corresponding to the designated laser L incident on the reflector 240. The light-blocking element 250 is used to block the designated laser L from escaping to the outside. Here, "blocking" means that the specified laser L can only irradiate the outer surface of the light-blocking component 250 and cannot pass through the light-blocking component 250.

[0031] On one hand, the vehicle lamp assembly 200 in this embodiment uses a laser as the lighting source. Compared with LED light sources, lasers have a smaller spread and higher brightness. While ensuring sufficient luminous flux, the size of optical elements (e.g., phosphor 230, reflector 240, etc.) in the vehicle lamp assembly 200 can be reduced. In addition, the reflector 240 in the vehicle lamp assembly 200 can fold the laser light path, making the light path within the vehicle lamp assembly 200 more compact, which is beneficial for achieving a miniaturized and high-brightness lighting design.

[0032] On the other hand, in this embodiment, a light-blocking member 250 is provided on the side of the reflector 240 away from the base 210, and the light-blocking member 250 is located on the optical axis corresponding to the designated laser L incident on the reflector 240. It is used to block the designated laser L from being emitted to the outside world in the event that the reflector 240 falls off (that is, it cannot reflect the designated laser L to the fluorescent member 230). It can effectively prevent the designated laser L from being accidentally leaked into the external environment, thereby avoiding potential harm to personnel. For example, it can prevent the laser from accidentally entering the eyes of pedestrians.

[0033] The specific structure of the headlight assembly 200 is described below.

[0034] In this embodiment, the base 210 is generally block-shaped and serves to fix and support other structures in the vehicle lamp assembly 200 (e.g., light-transmitting element 220, fluorescent element 230, etc.). Specifically, the base 210 can be made of metal materials (e.g., copper, aluminum, iron, copper-aluminum composite materials, aluminum alloy materials), which can provide a good heat dissipation effect for the fluorescent element 230 disposed on the base 210.

[0035] In some possible embodiments, such as Figure 1 As shown, the laser module 120 may include a laser connector 1230 for emitting a designated laser L. The base 210 may have a mounting groove 2120 extending through opposite sides of the base 210. The laser connector 1230 is located on the side of the base 210 opposite to the light-transmitting element 220 and is embedded in the mounting groove 2120. The designated laser L is incident on the reflector 240 via the mounting groove 2120 on the base 210. Specifically, the laser connector 1230 and the mounting groove 2120 can be detachably connected via a threaded structure or a tenon-and-mortise structure, so that in the event of a malfunction in the laser module 120, it can be separated from the vehicle light assembly 200 by disassembling the laser connector 1230, facilitating repair and replacement of the laser module 120.

[0036] Of course, in some other possible embodiments, the laser module 120 may also be fixedly connected to the base 210, and the light output port of the laser module 120 may be oriented towards the reflector 240. This embodiment does not limit the specific arrangement of the laser module 120.

[0037] In some possible embodiments, the headlight assembly 200 may further include a collimating lens 260 located on the side of the base 210 facing the reflector 240 and embedded in a mounting groove 2120. Figure 2In the middle, the cross section of the mounting groove 2120 is roughly "H" shaped. One side of the mounting groove 2120 is used to fix the laser connector 1230, and the other side of the mounting groove 2120 is used to fix the collimating lens 260 so that the collimating lens 260 can be accurately located on the optical path of the specified laser L.

[0038] Specifically, the designated laser L is collimated by the collimating lens 260 and then incident on the reflector 240. Therefore, the collimating lens 260 can focus and collimate the designated laser L, so that the designated laser L can be fully incident on the reflector 240, thereby improving the energy utilization efficiency of the designated laser L.

[0039] As an example, the collimating lens 260 can be a positive lens, such as a plano-convex lens, a biconvex lens, etc. The number of collimating lenses 260 can be one or more. The collimating lens 260 can be interference-fitted with the mounting slot 2120 to make the collimating lens 260 more securely and reliably embedded in the mounting slot 2120, making the overall structure of the lamp assembly 200 more robust and compact.

[0040] In this embodiment, the light-transmitting element 220 is disposed on one side of the base 210. For example, the light-transmitting element 220 can be embedded or attached to the base 210; or, the light-transmitting element 220 can be spaced apart from the base 210, and both are fixed to the housing 140. The light-transmitting element 220 is used to guide the specified fluorescence F generated by the fluorescent element 230 to the outside. The light-transmitting element 220 may include a light-incident side 2201 and a light-exiting side 2203 that are opposite to each other. The light-incident side 2201 is disposed opposite to the fluorescent element 230, so that the specified fluorescence F generated by the fluorescent element 230 enters the light-transmitting element 220 through the light-incident side 2201 and is emitted to the outside through the light-exiting side 2203.

[0041] It should be noted that during the process of generating a specified fluorescence F under the excitation of a specified laser L, a portion of the specified laser L is converted into the specified fluorescence F, while another portion of the specified laser L is reflected at the fluorescent element 230 and combines with the specified fluorescence F to form a combined light ray (not shown in the figure). The combined light ray is emitted to the outside through the light-transmitting element 220. For example, when the specified laser L is a blue laser and the specified fluorescence F is a yellow fluorescence, the combined light ray formed by the mixture of the two is white light.

[0042] As an example, the light-transmitting element 220 can be a lens, such as a total internal reflection (TIR) ​​lens. Specifically, the outer peripheral surface 2205 of the light-transmitting element 220 is a reflective surface, which is used to reflect part of the combined light rays within the light-transmitting element 220 to the light-emitting side 2202, thereby improving the energy utilization efficiency of the combined light rays and the light output brightness of the vehicle lamp assembly 200. Exemplarily, the outer peripheral surface 2205 of the light-transmitting element 220 can be coated with a metal reflective film (e.g., an aluminum reflective film, a silver reflective film, a chromium-platinum reflective film, etc.).

[0043] Specifically, the light-transmitting element 220 may include a collimating portion 2210 and a reflecting portion 2230 connected to each other, with the reflecting portion 2230 surrounding the outer periphery of the collimating portion 2210. The collimating portion 2210 is located in the central region of the light-transmitting element 220 and is used to collimate a portion of the combined light rays (small-angle rays) before projecting them to the outside, thereby forming a light spot in the central region of the projected light. Because this portion of the light rays has good collimation, it can propagate over a longer distance. Specifically, the side of the collimating portion 2210 facing the base 210 may be a convex surface, equivalent to a "convex lens," thereby achieving the collimation effect on the incident light rays.

[0044] The reflector 2230 is generally shell-shaped, with its outer peripheral surface 2205 being a generally conical surface that gradually tapers towards the groove of the base 210. The reflector 2230 is used to reflect another portion of the combined light rays (large-angle rays) to the outside, forming a light spot in the surrounding area of ​​the emitted light. It is easy to understand that because the brightness of the light spot in the central area is greater than that in the surrounding areas, the overall energy distribution of the emitted light spot is "stronger in the center and weaker around the edges," to meet the requirements stipulated by regulations.

[0045] In this embodiment, the light-transmitting element 220 is provided with a receiving cavity 221. The reflecting portion 2230 protrudes relative to the collimating portion 2210 on the side facing the base 210 to form the receiving cavity 221, which is located on the side of the collimating portion 2210 facing the base 210. A fluorescent element 230 is disposed within the receiving cavity 221 so that the designated fluorescence F emitted by the fluorescent element 230 enters the receiving cavity 221. Specifically, the bottom wall of the receiving cavity 221 (i.e., the side of the collimating portion 2210 facing the base 210) is a curved surface protruding towards the base 210, and the bottom wall can be used to converge the designated fluorescence F. It is easy to see that the area where the bottom wall is located can be considered as a convex lens, thereby achieving the effect of converging fluorescence and improving the energy utilization efficiency of the designated fluorescence F.

[0046] It should be noted that the names "reflective part" and "collimating part" are used for ease of description. In specific examples, there may or may not be a clear dividing line between the two structures; for example, they may be assembled together or be a single molded structure. In some possible embodiments, the collimating part 2210 and the reflective part 2230 may be a single molded structure, that is, the collimating part 2210 and the reflective part 2230 are different parts of the same component, one part is used to collimate the combined light rays, and the other part is used to reflect the combined light rays. Specifically, the light-transmitting element 220 may be integrally processed from a material with good light transmittance, such as glass or plastic optical material, and can be regarded as an irregularly shaped lens.

[0047] In some possible embodiments, the collimator 2210 may have a plurality of microstructures 2207 on the side opposite to the base 210, and the plurality of microstructures 2207 may be arranged in an array. Specifically, the plurality of microstructures 2207 may be arranged in an M*N rectangular array or in a ring array (e.g., in a concentric ring shape). This embodiment does not limit the specific implementation of the microstructures 2207.

[0048] As an example, multiple microstructures 2207 can homogenize the combined light rays, making the illumination brightness of the combined light rays more uniform and improving the lighting effect of the vehicle lamp assembly 200. Specifically, the microstructure 2207 can protrude to one side facing outward, equivalent to a single convex lens. That is to say, multiple microstructures 2207 can be regarded as a lens array to ensure the homogenization effect.

[0049] As another example, multiple microstructures 2207 can adjust the energy distribution of the combined light rays so that the light emitted by the headlight assembly 200 can meet the requirements stipulated by regulations. For example, the energy distribution of the adjusted combined light rays can be roughly a Gaussian distribution with "stronger at the center and weaker at the edges".

[0050] In this embodiment, the reflector 240 is disposed in the optical path of the designated laser L. It is used to reflect the designated laser L, which has been collimated by the collimating lens 260, to the phosphor 230, so that the designated laser L can be used as excitation light to excite the designated fluorescence F. Specifically, the reflector 240 can be disposed between the reflector 2230 and the base 210, and the angle between the propagation direction of the designated laser L reflected by the reflector 240 and the light-emitting surface of the phosphor 230 is an acute angle.

[0051] Therefore, in this embodiment, the designated laser L is "obliquely incident" onto the fluorescent element 230. By placing the reflector 240 at the edge of the light-transmitting element 220 (that is, within the clearance notch between the reflector 2230 and the base 210), the situation where the reflector 240 blocks the center beam (small angle beam) of the designated fluorescent element F can be avoided, and the center of the emitted light spot can be guaranteed to have high brightness, so as to ensure that the vehicle lamp assembly 200 has a good lighting effect.

[0052] For example, the reflector 240 can be a plane mirror or a reflecting prism, and this embodiment does not specifically limit it. It is easy to understand that since the light-emitting side of the designated laser L and the phosphor 230 are both located on the same side of the base 210, the reflector 240 can play a role in folding the light path, so that the designated laser L can be smoothly guided to the phosphor 230.

[0053] Specifically, in Figure 2 In the illustrated embodiment, a portion of the reflective portion 2230 is disposed opposite to the base 210 to form a mounting cavity 223, which is connected to the receiving cavity 221. The reflective element 240 is disposed within the mounting cavity 223, and the reflective surface of the mounting cavity 223 is tilted towards the side facing the fluorescent element 230 to deflect the designated laser L to the fluorescent element 230.

[0054] In this embodiment, the fluorescent element 230 is disposed on the side of the base 210 facing the light-transmitting element 220, and is used to generate a specified fluorescence F under the excitation of a specified laser L. The specified fluorescence F can be green fluorescence, yellow fluorescence, etc. Specifically, the fluorescent element 230 can be attached to or embedded in the outer surface of the base 210 to ensure reliable connection between the two.

[0055] As an example, the fluorescent element 230 can be a fluorescent ceramic sheet, which is made by combining fluorescent materials (such as rare earth-doped oxides, nitrides, etc.) with a ceramic matrix (such as alumina, silicon nitride, etc.) to ensure the thermal stability of the fluorescent element 230.

[0056] As another example, the fluorescent element 230 can be a fluorescent coating, which can be a coating formed by directly applying a colloid mixed with fluorescent material to the outer surface of the base 210. Specifically, this embodiment does not limit the implementation of the fluorescent element 230.

[0057] In some possible embodiments, the vehicle light assembly 200 may also include a heat sink 270, which is fixed between the fluorescent element 230 and the base 210, so that the heat on the fluorescent element 230 can be quickly transferred to the base 210 through the heat sink 270, thereby achieving a better heat dissipation effect on the fluorescent element 230 and ensuring the working life of the fluorescent element 230.

[0058] As an example, a groove may be formed on the side of the base 210 facing the light-transmitting element 220, and the heat sink 270 may be embedded in the groove to increase the contact area (heat dissipation area) between the heat sink 210 and the base 210. The fluorescent element 230 may be disposed on the side of the heat sink 270 facing the light-transmitting element 220. Specifically, the heat sink 270 may be a metal heat sink (e.g., an aluminum heat sink, a copper heat sink, etc.) or a heat sink fin. This embodiment does not limit the implementation of the heat sink 270.

[0059] In this embodiment, the light-blocking member 250 is disposed on the side of the reflector 240 facing away from the base 210 and located on the optical axis K corresponding to the designated laser L incident on the reflector 240. The light-blocking member 250 is used to block the designated laser L from being emitted to the outside. Specifically, the propagation direction X of the designated laser L incident on the reflector 240 points from the incident light side 2201 to the emitting light side 2203. The collimating lens 260, the reflector 240, and the light-blocking member 250 are arranged sequentially in the propagation direction X. In some possible examples, the propagation direction X may be perpendicular to the plane where the base 210 is located.

[0060] Therefore, in the event that the reflector 240 is accidentally detached (i.e., unable to reflect the designated laser L to the fluorescent element 230), the light-blocking element 250 can block the designated laser L to prevent it from being emitted to the outside world, and can effectively prevent the designated laser L from being accidentally leaked to the external environment.

[0061] In some possible embodiments, the light-blocking member 250 may be generally block-shaped, with at least a portion of the light-blocking member 250 disposed within the mounting cavity 223 and abutting between the base 210 and the reflector 2230. The reflector 240 is connected to the side of the light-blocking member 250 facing the fluorescent element 230. Exemplarily, the light-blocking member 250 may be made of an opaque material, such as metallic materials (e.g., aluminum, copper, iron, steel, etc.), ceramic materials (e.g., alumina ceramics, silicon nitride ceramics, etc.), composite materials (e.g., carbon fiber, glass fiber, etc.), or rock materials (e.g., marble, granite, etc.). Therefore, when the reflector 240 detaches, the light-blocking member 250 can reliably block the designated laser L to prevent its accidental leakage to the outside.

[0062] In some possible embodiments, the light-blocking member 250 is a metal light-blocking member, and the reflector 240 is connected to the light-blocking member 250. Exemplarily, the light-blocking member 250 has a light-blocking surface (not shown in the figure) on the side facing the fluorescent member 230, the light-blocking surface is inclined relative to the light-emitting surface of the fluorescent member 230, and the reflector 240 is connected to the light-blocking surface.

[0063] Therefore, the light-blocking component 250 can serve as a fixed support for the reflector 240. On the one hand, it can improve the connection reliability of the reflector 240 and reduce the risk of accidental detachment; on the other hand, since the light-blocking component 250 is made of metal, it can quickly conduct away the heat generated on the reflector 240 by the specified laser L irradiation, thereby improving the service life of the reflector 240.

[0064] As an example, the light-blocking component 250 can be fixedly connected between the base 210 and the light-transmitting component 220 to improve the connection reliability of the overall structure of the vehicle lamp assembly 200. As another example, the light-blocking component 250 can be detachably connected between the base 210 and the light-transmitting component 220. For example, the light-blocking component 250 can be detached from the base 210 through a snap-fit ​​structure or a tenon-and-mortise structure, so that if the reflector 240 is accidentally detached, the reflector 240 can be re-fixed by removing the light-blocking component 250, thereby reducing the maintenance difficulty of the vehicle lamp assembly 200.

[0065] exist Figure 2 In the illustrated embodiment, the light-blocking member 250 may include a body 2520 and a light-blocking portion 2540, with the body 2520 abutting against the base 210. The light-blocking portion 2540 is connected to the side of the body 2520 facing the receiving cavity 221 and is disposed within the mounting cavity 223, with the light-blocking portion 2540 abutting against the reflective portion 2230. Specifically, the light-blocking portion 2540 has a light-blocking surface on the side facing the fluorescent element 230.

[0066] Therefore, when the light-blocking member 250 is made of metal, by abutting the body 2520 against the base 210, a heat dissipation path can be formed between the reflector-light-blocking part-body-base, so that the heat generated on the reflector 240 due to the irradiation of the specified laser L can be quickly conducted away, thereby improving the service life of the reflector 240.

[0067] It should be noted that the names "body" and "light-blocking part" are used for ease of description. In specific examples, there may or may not be a clear dividing line between the two structures; for example, they may be assembled together or be a single molded structure. In some possible embodiments, the body 2520 and the light-blocking part 2540 may be a single molded structure, that is, the body 2520 and the light-blocking part 2540 are different parts of the same component. Specifically, the light-blocking member 250 may be integrally machined from metal material.

[0068] This application provides a vehicle lamp assembly 200 and a lighting system 100 configured with the vehicle lamp assembly 200. The vehicle lamp assembly 200 may include a base 210, a light-transmitting element 220, a fluorescent element 230, a reflector 240, and a light-blocking element 250. The base 210 is used to connect a laser module 120, and the light-transmitting element 220 is disposed on one side of the base 210. The fluorescent element 230 is disposed on the side of the base 210 facing the light-transmitting element 220 and is located in the optical path of a designated laser L. The fluorescent element 230 is used to generate a designated fluorescence F under the excitation of the designated laser L, and the designated fluorescence F is emitted to the outside through the light-transmitting element 220. The reflector 240 is disposed in the optical path of the designated laser L and is used to reflect the designated laser L to the fluorescent element 230. The light-blocking component 250 is disposed on the side of the reflector 240 away from the base 210 and is located on the optical axis K corresponding to the specified laser L incident on the reflector 240. The light-blocking component 250 is used to block the specified laser L from being emitted to the outside.

[0069] On one hand, the vehicle lamp assembly 200 in this embodiment uses a laser as the lighting source. Compared with LED light sources, lasers have a smaller spread and higher brightness. While ensuring sufficient luminous flux, the size of optical elements (e.g., phosphor 230, reflector 240, etc.) in the vehicle lamp assembly 200 can be reduced. In addition, the reflector 240 in the vehicle lamp assembly 200 can fold the laser light path, making the light path within the vehicle lamp assembly 200 more compact, which is beneficial for achieving a miniaturized and high-brightness lighting design.

[0070] On the other hand, in this embodiment, a light-blocking member 250 is provided on the side of the reflector 240 away from the base 210, and the light-blocking member 250 is located on the optical axis corresponding to the designated laser L incident on the reflector 240. It is used to block the designated laser L from being emitted to the outside world in the event that the reflector 240 falls off (that is, it cannot reflect the designated laser L to the fluorescent member 230). It can effectively prevent the designated laser L from being accidentally leaked into the external environment, thereby avoiding potential harm to personnel. For example, it can prevent the laser from accidentally entering the eyes of pedestrians.

[0071] In this application specification, certain terms are used to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. The specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "including but not limited to"; "generally" means that those skilled in the art can solve the technical problem within a certain margin of error and basically achieve the technical effect.

[0072] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inside", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the purpose of simplifying the description of this application and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0073] In this application, unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or merely surface contact. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0074] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0075] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A vehicle lighting assembly, characterized in that, Suitable for connection to a laser module for generating a specified laser, the vehicle headlight assembly includes: A base for connecting the laser module; A light-transmitting element is disposed on one side of the base; A fluorescent element is disposed on the side of the base facing the light-transmitting element and located in the optical path of the designated laser; the fluorescent element is used to generate a designated fluorescence under the excitation of the designated laser, and the designated fluorescence is emitted to the outside through the light-transmitting element; A reflector, disposed in the optical path of the designated laser, is used to reflect the designated laser to the fluorescent element; and A light-blocking component is disposed on the side of the reflector away from the base and located on the optical axis corresponding to the specified laser incident on the reflector. The light-blocking component is used to block the specified laser from being emitted to the outside.

2. The vehicle lighting assembly according to claim 1, characterized in that, The light-transmitting element includes an incident light side and an exit light side that are opposite to each other, and the specified fluorescence is emitted to the outside through the exit light side; The propagation direction of the specified laser incident on the reflector is from the incident light side to the emitting light side, and the reflector and the light-blocking element are arranged sequentially in the propagation direction.

3. The vehicle lighting assembly according to claim 1, characterized in that, The light-transmitting element includes a collimating part and a reflecting part connected to each other, and the reflecting part is arranged around the outer periphery of the collimating part; The reflector is disposed between the reflector and the base, and the angle between the propagation direction of the designated laser reflected by the reflector and the light-emitting surface where the fluorescent element is located is an acute angle.

4. The vehicle lighting assembly according to claim 3, characterized in that, The light-transmitting element has a receiving cavity, and the fluorescent element is disposed in the receiving cavity; a portion of the reflective part is disposed opposite to the base to form a mounting cavity, and the mounting cavity is connected to the receiving cavity; At least a portion of the light-blocking element is disposed within the mounting cavity and abuts against the base and the reflective portion; the reflective element is connected to the side of the light-blocking element facing the fluorescent element.

5. The vehicle lighting assembly according to claim 4, characterized in that, The light-blocking component includes a body and a light-blocking part. The body abuts against the base. The light-blocking part is connected to the side of the body facing the receiving cavity and is disposed in the mounting cavity. The light-blocking part abuts against the reflective part. The light-blocking part has a light-blocking surface on the side facing the fluorescent element, and the light-blocking surface is inclined relative to the light-emitting surface of the fluorescent element; the reflective element is connected to the light-blocking surface.

6. The vehicle lamp assembly according to any one of claims 1 to 5, characterized in that, The vehicle headlight assembly also includes a heat sink, which is fixed between the fluorescent element and the base.

7. The vehicle lamp assembly according to any one of claims 1 to 5, characterized in that, The laser module includes a laser connector, which is used to emit the specified laser. The base is provided with a mounting groove that extends through opposite sides of the base; the laser connector is located on the side of the base away from the light-transmitting element and is embedded in the mounting groove; the designated laser is incident on the reflector via the mounting groove.

8. The vehicle lighting assembly according to claim 7, characterized in that, The vehicle headlight assembly also includes a collimating lens, which is located on the side of the base facing the reflector and is embedded in the mounting groove; the designated laser is collimated by the collimating lens and then incident on the reflector.

9. A lighting system, characterized in that, include: Laser module, used to generate a specified laser; as well as The vehicle lighting assembly as described in any one of claims 1 to 8, wherein the vehicle lighting assembly is connected to the laser module and is located on the optical path of the designated laser.

10. The lighting system according to claim 9, characterized in that, The lighting system also includes a housing, within which the vehicle lamp assembly is disposed; The laser module includes a laser generator, a laser connector, and an optical fiber; the laser generator and the laser connector are respectively connected to the two ends of the optical fiber, the laser generator is disposed outside the housing, and the laser connector is connected to the vehicle light assembly.

Images