A laser high-low beam integrated automobile headlamp

Abstract

The application relates to the technical field of automobile lamps, in particular to a laser high-low beam integrated automobile headlamp, which comprises a headlamp assembly composed of a lamp holder, a lamp shell, a light distribution mirror, a lamp body assembly and a power module; a cavity is formed in the lamp holder; a positioning assembly for mounting the lamp body assembly is arranged in the cavity; the positioning assembly comprises a lamp body socket, a foolproof part arranged on the lamp body socket and a locking part; the foolproof part is used for guiding the lamp body assembly during installation, so that the lamp body assembly is accurately inserted into the lamp body socket, and the foolproof part is used in linkage with the locking part. The laser high-low beam integrated automobile headlamp is provided with a unique matching relationship between a foolproof rod and a foolproof seat, only the lamp body socket with a correct type and a correct direction can be inserted, the forcibly inserted lamp body socket caused by angle deviation and direction error is physically excluded, the damage risks such as bending and breaking of the insertion pin and cracking of the socket shell are completely avoided, and the physical structure error prevention advantage is achieved.

Description

Technical Field

[0001] This application relates to the field of automotive lighting technology, and in particular to a laser-integrated high and low beam automotive headlight. Background Technology

[0002] Headlights are lighting devices mounted on both sides of the front of a car for nighttime driving. They are available in two-lamp and four-lamp systems. The illumination effect of headlights directly affects driving operation and traffic safety at night.

[0003] Patent document CN116877948A discloses a high / low beam adjustment system for automotive headlights. This application uses an arc lamp as the light source, supplemented by the mechanical blocking of a reflector to achieve high / low beam switching. The lamp assembly is simply plugged into a socket. This installation method has the following drawbacks: Without any foolproof guidance or locking mechanism inside the lamp housing, this open, unguided plug-in method is prone to problems such as incorrect insertion, angular misalignment, and misplacing during assembly. Since the plug and socket contain precision contacts, repeated mis-insertion can easily lead to contact bending, wear, or even detachment, causing assembly defects and poor contact. Furthermore, the lack of a locking structure means that the plug may loosen under long-term vehicle vibration, directly affecting lighting stability and driving safety. The assembly precision of the lamp components cannot be guaranteed, potentially causing optical axis misalignment and affecting lighting performance. Therefore, a laser-integrated high / low beam automotive headlight is proposed to address these issues. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this application provides a laser-integrated high and low beam automotive headlight with dual foolproof guidance and automatic locking structure. This eliminates the risk of contact damage and assembly deviation caused by incorrect or improper socket insertion from the assembly stage, thus solving the aforementioned lamp installation problems.

[0005] This application provides a laser-guided high / low beam automotive headlight, employing the following technical solution: A laser-integrated high and low beam automotive headlight includes a headlight assembly consisting of a lamp holder, a lamp housing, a light distribution lens, a lamp body assembly, and a power module. The lamp holder has a cavity inside, and a positioning component for mounting the lamp body assembly is disposed inside the cavity. The positioning component includes a lamp body connector, a foolproof component and a locking component disposed on the lamp body connector. The foolproof component is used to guide the lamp body assembly during installation so that it can be accurately inserted and mated with the lamp body connector. The foolproof component is also used in conjunction with the locking component to lock and position the lamp body assembly.

[0006] Optional: The lamp body connector is convex in shape, with one side fixed to the inner wall of the cavity. The lamp body assembly is provided with a lamp body socket that is inserted and matched with the lamp body connector. The lamp body socket has a positioning groove inside that is inserted and matched with the locking member.

[0007] Optional: The foolproof component includes a trigger seat, a foolproof seat, a foolproof rod, a guide sleeve, and an elastic sheet. The guide sleeve is slidably sleeved on the outside of the lamp body socket. The foolproof seat is fixed to the outside of the guide sleeve. The trigger seat is bolted to one side of the lamp body socket. The foolproof rod is fixed to one side of the trigger seat and is plugged into the foolproof seat.

[0008] Optionally: the guide sleeve is hollow inside, and a retaining block is embedded on the inner side of the elastic sheet. The shape of the retaining block is adapted to the shape of the lamp body socket. There are multiple elastic sheets, and the multiple elastic sheets are distributed in a ring at equal intervals.

[0009] Optionally: One end of the guide sleeve is fitted onto the outside of the plurality of elastic pieces, and an interference fit guide groove is provided between the inner side of the guide sleeve and the outer shape of the plurality of elastic pieces, wherein the guide groove on the guide sleeve is conical in shape; the foolproof guide of the lamp body assembly is realized by the insertion and cooperation of the foolproof rod and the foolproof seat. As the lamp body assembly continues to extend, the trigger seat contacts the guide sleeve and pushes the guide sleeve to move. The displacement of the guide sleeve is achieved by the interference fit between the guide groove and the plurality of elastic pieces, so that the center of the plurality of ring-distributed elastic pieces is hugged, and the hugging block is attached to the lamp body socket, further preventing the lamp body assembly from being foolproof.

[0010] Optionally, the anti-misalignment component also includes an anti-misalignment plate used in conjunction with the locking component. The anti-misalignment plate is cylindrical in shape and fixed to the outside of the guide sleeve. A through hole is provided inside the front end of the anti-misalignment plate. When the guide sleeve is displaced, the anti-misalignment plate is displaced synchronously, and the through hole is displaced to a position corresponding to the locking component and the positioning groove. At this time, the locking component is no longer under pressure and extends into the positioning groove through the through hole for positioning.

[0011] Optional: The locking component includes a mounting bracket, a locking rod, and a return spring. The locking rod is adapted to the through hole and the positioning groove, respectively. A return spring is installed between the guide sleeve and the lamp body connector.

[0012] Optionally: the mounting bracket is cylindrical and installed on the outside of the lamp body connector, the locking rod slides through the inside of the mounting bracket, and the reset spring is wound around and installed on the outer surface of the locking rod.

[0013] Optionally, the locking component further includes a locking ring threaded onto the outer surface of the mounting bracket. Both ends of the locking rod are provided with arc-shaped surfaces. One end of the locking rod abuts against the outer side of the anti-fool plate. When the locking rod is inserted into the positioning groove, the locking ring is rotated and displaced. At this time, the other end of the locking rod abuts against the inner side of the locking ring.

[0014] Optional: The lamp housing is snapped together with the lamp holder, the light distribution lens is fixedly sealed inside the lamp housing, multiple protective rods are installed on the outer surface of the lamp holder, and the power module is installed inside the lamp holder.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. This invention, through the unique matching setting of the anti-fooling rod and the anti-fooling seat, ensures that only lamp sockets of the correct model and correct orientation can be inserted, thus physically eliminating forced insertion caused by angular deviation or incorrect orientation. It completely avoids the risk of damage such as bent or broken pins or cracked socket shells, achieving the advantages of physical structure-based error prevention.

[0016] 2. This invention, through the engagement mechanism of the guide sleeve and the elastic sheet, enables secondary concentricity correction of the lamp socket after the initial positioning by the anti-fooling rod. This ensures that every terminal inside the plug and socket is coaxially aligned, avoiding increased contact resistance, signal attenuation, or localized heating caused by minor deviations. The precise guidance prevents the pins from scratching the socket housing during insertion, effectively protecting the elastic structure of the conductive terminals inside the socket and ensuring that it maintains a stable clamping force throughout its design life, thus guaranteeing the reliability of long-term electrical contact.

[0017] 3. This invention achieves integrated linkage of assembly, error prevention, and locking. After the lamp body components are inserted into place, they can be automatically locked and positioned without the need for manual alignment of lock holes and tightening of screws. This greatly simplifies the assembly process, reduces the difficulty of manual assembly, and significantly improves production assembly efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural view of the headlight assembly of this application; Figure 2 This is an exploded view of the headlight assembly structure of this application; Figure 3 This is a cross-sectional view of the lamp holder structure in this application; Figure 4 This is a cross-sectional view of the positioning component structure in this application; Figure 5 This application Figure 3 A magnified structural diagram of structure A is shown below; Figure 6 This is a cross-sectional view of the anti-fouling component structure in this application.

[0019] Explanation of reference numerals in the attached figures: 1. Headlight assembly; 11. Lamp holder; 12. Lamp housing; 13. Lens; 14. Lamp body assembly; 141. Lamp body socket; 142. Positioning groove; 15. Power module; 16. Protective bar; 17. Cavity; 2. Positioning assembly; 21. Lamp body connector; 22. Foolproof component; 221. Trigger seat; 222. Foolproof seat; 223. Foolproof bar; 224. Guide sleeve; 225. Elastic sheet; 226. Clamping block; 227. Guide groove; 228. Foolproof plate; 229. Through hole; 23. Locking component; 231. Mounting bracket; 232. Locking bar; 233. Return spring one; 234. Locking ring; 24. Return spring two. Detailed Implementation

[0020] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0021] This application discloses a laser-integrated high / low beam automotive headlight. The laser-integrated high / low beam automotive headlight includes a headlight assembly 1, which comprises a lamp holder 11, a lamp housing 12, a lens 13, a lamp body assembly 14, and a power module 15. The lamp holder 11 has an internal cavity 17. Specifically, the lamp housing 12 is snap-fitted into the lamp holder 11, and the lens 13 is fixedly sealed inside the lamp housing 12. Multiple protective rods 16 are mounted on the outer surface of the lamp holder 11 to provide physical protection for the external structure of the lamp body assembly 14. The power module 15 is installed inside the lamp holder 11 to provide power to the lamp body assembly 14.

[0022] It should be noted that the light source system of the lamp assembly 14 adopts a hybrid laser and LED light source scheme, which is separately located inside the lamp housing 12. Specifically, the laser light source group includes a first laser source unit and a first LED light source unit. The laser beam emitted by the laser source unit has good collimation and concentrated energy, which can effectively improve the center illuminance of the near beam. The high beam light source group includes a second laser source unit and a second LED light source unit. The laser source can greatly improve the center illuminance and beam concentration of the high beam, while the LED light source is used for supplementary lighting to further improve the lighting effect.

[0023] To further explain, the core components of the laser source include: six blue laser diodes with a wavelength of 450nm; a wavelength conversion unit, such as a prism or phosphor layer containing yellow phosphor; a control switch connected to the laser source unit to control its on / off state; a blue laser beam projected onto the phosphor layer to excite white light; and a control switch connected to the laser source unit to control its on / off state.

[0024] By using reflectors and lenses, separate reflectors are set up for near beam and far beam. Both reflectors have curved surfaces, with the near beam reflector having a smaller curvature and the far beam reflector having a larger curvature. The laser source and wavelength conversion unit are located on opposite sides of the reflectors, and the reflectors have light-passing sections to allow the laser beam to pass through. The lenses project the light reflected by the reflectors, forming the final beam shape. Fresnel lenses can be used specifically for this purpose.

[0025] Simultaneously, a movable light-shielding plate is used to block light, forming a clear cutoff line between light and dark in the illumination pattern. Alternatively, the cutoff line can be directly set on the edge of the reflector to simplify the module. The movement of the movable light-shielding plate switches between low beam and high beam modes. Another solution is to use a light source reflection rotation mechanism, controlling the angle of the hinged light source reflector via electromagnetic force to reflect the laser onto the low beam or high beam reflector surface respectively. In specific use, in low beam mode, the first laser source unit and the first LED source unit of the low beam light source group are activated. The laser and LED beams are projected onto the first wavelength conversion unit located at the focal point of the low beam reflector bowl, exciting white light. The white light is reflected by the low beam reflector bowl, passes through the lower half of the movable light-shielding plate, and is then projected through a lens to form a low beam spot with a clear cutoff line between light and dark. In high beam mode, the movable light-shielding plate is moved away, no longer blocking the light. Simultaneously, the second laser source unit and the second LED source unit of the high beam light source group are activated. The laser and LED beams are projected onto the second wavelength conversion unit located at the focal point of the high beam reflector bowl, which excites white light. After being reflected by the high beam reflector bowl, the white light is projected through the lens without obstruction, forming a high beam spot with a long illumination distance and high central brightness.

[0026] To facilitate the installation of the lamp body assembly 14, such as Figures 2-6 As shown, a positioning component 2 for mounting the lamp body assembly 14 is provided inside the cavity 17. The positioning component 2 includes a lamp body connector 21 fixed to the inner wall of the cavity 17, and a foolproof component 22 and a locking component 23 provided on the lamp body connector 21. Specifically, the lamp body connector 21 is U-shaped, and one side is fixed to the inner wall of the cavity 17. The lamp body assembly 14 is provided with a lamp body socket 141 that is inserted and mated with the lamp body connector 21, and a positioning groove 142 is provided inside the lamp body socket 141.

[0027] It should be noted that the foolproof component 22 is used to guide the lamp body assembly 14 during installation, ensuring precise insertion and engagement with the lamp body socket 21, and to trigger a locking function to lock it in place after installation. Specifically, the foolproof component 22 includes a trigger seat 221, a foolproof seat 222, a foolproof rod 223, a guide sleeve 224, and an elastic piece 225. The guide sleeve 224 is slidably fitted onto the outside of the lamp body socket 21. The foolproof seat 222 is fixed to the outside of the guide sleeve 224. The trigger seat 221 is bolted to one side of the lamp body socket 141. The foolproof rod 223 is fixed to one side of the trigger seat 221 and engages with the foolproof seat 222.

[0028] Specifically, during installation, the initial anti-mistake guide is achieved by the insertion and engagement of the anti-mistake rod 223 and the anti-mistake seat 222, ensuring that the lamp body assembly 14 is inserted in the correct direction. As the lamp body assembly 14 is continuously pushed in, the trigger seat 221 contacts the guide sleeve 224 and pushes it to slide along the lamp body socket 21. It should be noted that the guide sleeve 224 is hollow inside, and one end of it is fitted onto the outside of multiple annularly distributed elastic pieces 225. The inner side of the elastic pieces 225 is embedded with a retaining block 226, the shape of which is adapted to the shape of the lamp body socket 141; wherein, a conical guide groove 227 is provided between the inner side of the guide sleeve 224 and the outer shape of the multiple elastic pieces 225, and the two are interference fit. When the trigger seat 221 pushes the guide sleeve 224 to move, the guide sleeve 224, through the interference fit between its internal conical guide groove 227 and the elastic sheet 225, forces the multiple ring-shaped elastic sheets 225 to hug towards the center. The hugging block 226 then tightly fits against the outer surface of the lamp body socket 141, thereby providing secondary anti-foolproof guidance and center positioning for the lamp body assembly 14, ensuring its precise docking with the lamp body connector 21. It should be noted that this application sets a two-level anti-foolproof positioning function. The first level achieves preliminary alignment and anti-foolproofing through the insertion of the anti-foolproof rod 223 and the anti-foolproof seat 222, avoiding incorrect angle or orientation installation. The second level, through the interference fit between the conical guide groove 227 and the elastic sheet 225, drives the hugging block 226 to center-hug and correct the position of the lamp body socket 141, completely eliminating assembly gaps and offset problems. Compared to the traditional single-alignment assembly structure, this structure has a lower assembly error tolerance and can ensure the coaxiality of the lamp body assembly 14. It effectively avoids problems such as light offset, inaccurate illumination angle, and uneven stress on the lamp body caused by assembly deviation, thus ensuring the stable lighting performance of the headlight.

[0029] It is worth mentioning that the lamp body socket 141 of traditional laser headlights lacks a dedicated foolproof limiting structure. During assembly, problems such as incorrect insertion, angled insertion, and misaligned insertion are very likely to occur. Due to the precision of the socket's connectors and the thinness of the contacts, repeated misinsertion and forced incorrect insertion can easily cause wear on the inner wall of the socket, bending, detachment, and oxidation damage to the metal contacts. It can also lead to assembly defects such as misalignment of the socket, excessive gaps between the connectors, and loose connections. Once the lamp body socket 141 is damaged, it will not only directly cause a single assembly failure, requiring rework to replace parts and reassemble, significantly increasing the production defect rate and production costs, but it will also lead to subsequent malfunctions such as poor power supply contact of the lamp body component 14, light flickering, and failure to switch between high and low beams, seriously affecting the normal lighting use of the headlight, and may even cause electrical safety hazards due to unstable circuit contact. This solution employs a dedicated double-layered anti-misplacement structure to prevent incorrect, haphazard, or off-center insertion of the lamp body socket 141 from the assembly stage. It strictly limits the socket's unique insertion angle and position, completely avoiding structural damage and contact failure caused by forced insertion. On one hand, it ensures the accuracy and standardization of every socket insertion, eliminating assembly defects, significantly reducing product defect rates and rework rates, and improving the quality of finished products. On the other hand, it effectively protects the structural integrity and contact precision of the lamp body socket 141, preventing assembly damage and subsequent loosening and poor contact issues. This ensures stable power supply and normal lighting function for the lamp body component 141 over a long period, significantly extending the overall lifespan of the lamp and improving vehicle lighting safety. It also reduces repair and replacement costs due to socket damage, significantly enhancing practicality and protection.

[0030] In this embodiment, the anti-mistake component 22 further includes an anti-mistake plate 228 that works in conjunction with the locking component 23. The anti-mistake plate 228 is cylindrical in shape, fixed to the outside of the guide sleeve 224, and has a through hole 229 inside its front end.

[0031] The positioning component 2 also includes a locking element 23 for engaging with the positioning groove 142 after the lamp body assembly 14 is installed in place, thereby achieving locking and positioning. The locking element 23 includes a mounting bracket 231, a locking rod 232, and a return spring 233. Specifically, there are multiple locking rods 232, which are distributed equidistantly in a ring. The mounting bracket 231 is cylindrical and installed on the outside of the lamp body connector 21. The locking rod 232 slides through the interior of the mounting bracket 231, with one end abutting against the outside of the anti-fouling plate 228 and the other end fitting into the positioning groove 142. The return spring 233 is wound around the outer surface of the locking rod 232, providing elastic force to the locking rod 232 in the direction of the positioning groove 142. It should be noted that multiple disassembly holes are provided on the side of the locking rod 232. During subsequent disassembly and assembly, the locking rod 232 can be connected to the disassembly holes through the internal support function, thereby driving multiple locking rods 232 to move out synchronously.

[0032] In the initial state, one end of the locking rod 232 is blocked by the outer wall of the anti-fool plate 228, overcoming the elastic force of the return spring 233, causing its other end to retract and preventing it from being inserted into the positioning groove 142. When the guide sleeve 224 is pushed to a certain position, the anti-fool plate 228 moves synchronously until its front end through hole 229 moves to a position corresponding to the locking rod 232 and the positioning groove 142. At this time, the locking rod 232 is no longer blocked by the anti-fool plate 228. Under the action of the elastic force of the return spring 233, one end of the locking rod 232 passes through the through hole 229 and extends into the positioning groove 142, achieving automatic locking and positioning.

[0033] As a further locking mechanism, the locking element 23 also includes a locking ring 234 threaded onto the outer surface of the mounting bracket 231. Both the upper and lower ends of the locking rod 232 have arc-shaped surfaces. When the locking rod 232 is inserted into the positioning groove 142, the locking ring 234 can be rotated to move axially along the mounting bracket 231. At this time, the inner side of the locking ring 234 abuts against the arc-shaped surface of the other end of the locking rod 232, further pressing the locking rod 232 into the positioning groove 142 to prevent it from loosening due to vibration.

[0034] A return spring 24 is installed between the guide sleeve 224 and the lamp body socket 21. When it is necessary to disassemble the lamp body assembly 14, first rotate the locking ring 234 in the opposite direction to release the auxiliary locking, and then pull the lamp body assembly 14 outward. The trigger seat 221 moves outward with the lamp body socket 141, and the guide sleeve 224 resets under the elastic force of the return spring 24. The anti-fool plate 228 resets accordingly and pushes the locking rod 232 out of the positioning groove 142 again, completing the unlocking.

[0035] Combined with appendix Figures 1-6 The working principle of the above embodiments is as follows: In the initial assembly state, the guide sleeve 224 is in the initial limit position under the elastic force of the return spring 24. The anti-fool plate 228 blocks the locking rod 232 of the locking component 23, so that the locking rod 232 is in a compressed state, avoiding the locking rod 232 from protruding and interfering with the assembly operation during the assembly process. When the worker inserts the lamp socket 141 of the lamp body assembly 14 into the lamp body connector 21 in the cavity 17 of the lamp holder 11, the anti-fool rod 223 fixed on the trigger seat 221 on one side of the lamp socket 141 will first engage with the anti-fool seat 222 on the outside of the lamp body connector 21 to achieve initial alignment and anti-fool, effectively avoiding the left and right or angular offset installation of the lamp body assembly 14, and eliminating the problems of incorrect installation and off-center installation. As the lamp body assembly 14 is continuously pushed into the cavity 17, the trigger seat 221 contacts the end face of the guide sleeve 224 and pushes the guide sleeve 224 to slide along the axial direction of the lamp body connector 21. A conical guide groove 227 is provided on the inner side of the guide sleeve 224. During its sliding process, the guide groove 227 forms an interference fit with multiple annularly distributed elastic pieces 225, driving the multiple elastic pieces 225 to synchronously close and hug towards the center. The hugging block 226 embedded in the inner side of the elastic piece 225 tightly fits the outer wall of the lamp body socket 141, performs secondary precise positioning and correction of the lamp body socket 141, completely eliminates the assembly gap, and ensures the coaxiality and fit of the lamp body assembly 14 and the lamp body connector 21, completing the entire process of foolproof guided assembly. As the guide sleeve 224 is pushed and displaced, the cylindrical anti-misalignment plate 228 fixed on its outer side moves axially synchronously. When the lamp body assembly 14 is fully inserted into place, the through hole 229 at the front end of the anti-misalignment plate 228 is just displaced to the corresponding position aligned with the locking rod 232 of the locking member 23 and the positioning groove 142 inside the lamp body socket 141. At this time, the locking rod 232 loses the squeezing limit of the anti-misalignment plate 228, and the return spring 233 wrapped around the surface of the locking rod 232 releases its elastic force, pushing the locking rod 232 to slide through the through hole 229 and precisely extend into the positioning groove 142, thereby realizing the automatic locking and positioning of the lamp body assembly 14. After locking is completed, the staff can rotate the locking ring 234 on the outer surface of the mounting bracket 231 to make the locking ring 234 axially displace and fit against the arc-shaped surface at the end of the locking rod 232, thereby limiting and fixing the locking rod 232 a second time, restricting the retraction displacement of the locking rod 232, preventing the locking rod 232 from falling off due to vehicle vibration, and greatly improving locking stability. When it is necessary to disassemble, inspect, or replace the lamp body assembly 14, first rotate the locking ring 234 in the reverse direction to release the locking ring 234 from the limiting constraint of the locking rod 232; then connect the locking rod 232 to the reserved insertion hole through the inner support structure, activate the inner support structure, and make the locking rod 232 retract and reset from the positioning groove 142 and the through hole 229; at this time, pull the lamp body assembly 14 in the reverse direction, and the trigger seat 221 moves synchronously with the lamp body assembly 14, releasing the thrust on the guide sleeve 224, the reset spring 24 releases its elasticity, pulls the guide sleeve 224 and the anti-fool plate 228 back to the initial position, the anti-fool plate 228 covers the locking rod 232 again, and at the same time the elastic piece 225 releases its clamping limit, so the lamp body assembly 14 can be easily removed, and the disassembly operation is completed.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A laser-integrated high and low beam automotive headlight, comprising a headlight assembly (1) consisting of a lamp holder (11), a lamp housing (12), a light distribution lens (13), a lamp body assembly (14), and a power module (15), characterized in that: The lamp holder (11) has a cavity (17) inside, and the positioning component (2) for mounting the lamp body assembly (14) is provided inside the cavity (17). The positioning component (2) includes a lamp body connector (21), a foolproof component (22) and a locking component (23) disposed on the lamp body connector (21). The foolproof component (22) is used to guide the lamp body assembly (14) during installation so that it can be accurately inserted and matched with the lamp body connector (21). The foolproof component (22) is also used in conjunction with the locking component (23) to lock and position the lamp body assembly (14).

2. The laser-guided high / low beam automotive headlight according to claim 1, characterized in that: The lamp body connector (21) is convex in shape, and one side of it is fixed to the inner wall of the cavity (17). The lamp body assembly (14) is provided with a lamp body socket (141) that is inserted and cooperates with the lamp body connector (21). The lamp body socket (141) has a positioning groove (142) inside that is inserted and cooperates with the locking member (23).

3. A laser-guided high / low beam automotive headlight according to claim 2, characterized in that: The foolproof component (22) includes a trigger seat (221), a foolproof seat (222), a foolproof rod (223), a guide sleeve (224), and an elastic sheet (225). The guide sleeve (224) is slidably sleeved on the outside of the lamp body connector (21). The foolproof seat (222) is fixed on the outside of the guide sleeve (224). The trigger seat (221) is bolted to one side of the lamp body socket (141). The foolproof rod (223) is fixed to one side of the trigger seat (221) and is inserted into the foolproof seat (222).

4. A laser-guided high / low beam automotive headlight according to claim 3, characterized in that: The guide sleeve (224) is hollow inside. The inner side of the elastic sheet (225) is embedded with a retaining block (226). The shape of the retaining block (226) is adapted to the shape of the lamp socket (141). There are multiple elastic sheets (225), and the multiple elastic sheets (225) are distributed in a ring at equal intervals.

5. A laser-guided high / low beam automotive headlight according to claim 4, characterized in that: One end of the guide sleeve (224) is sleeved on the outside of the multiple elastic pieces (225). An interference fit guide groove (227) is provided between the inner side of the guide sleeve (224) and the outer shape of the multiple elastic pieces (225). The guide groove (227) on the guide sleeve (224) is conical in shape. The anti-fool rod (223) is inserted into the anti-fool seat (222) to realize the anti-fool guide of the lamp body assembly (14). As the lamp body assembly (14) continues to extend, it contacts the guide sleeve (224) through the trigger seat (221) and pushes the displacement guide sleeve (224). The displacement of the guide sleeve (224) is achieved through the interference fit between the guide groove (227) and the multiple elastic pieces (225), so that the multiple elastic pieces (225) distributed in a ring are centered together, and the clasping block (226) fits the lamp body socket (141), further anti-fool guide of the lamp body assembly (14).

6. A laser-guided high / low beam automotive headlight according to claim 3, characterized in that: The anti-mistake component (22) also includes an anti-mistake plate (228) used in conjunction with the locking component (23). The anti-mistake plate (228) is cylindrical in shape and fixed to the outside of the guide sleeve (224). A through hole (229) is provided inside the front end of the anti-mistake plate (228). When the guide sleeve (224) is displaced, the anti-mistake plate (228) is displaced synchronously, and the through hole (229) is displaced to a position corresponding to the locking component (23) and the positioning groove (142). At this time, the locking component (23) is no longer under pressure and extends into the positioning groove (142) for positioning through the through hole (229).

7. A laser-guided high / low beam automotive headlight according to claim 6, characterized in that: The locking component (23) includes a mounting bracket (231), a locking rod (232), and a return spring (233). The locking rod (232) is adapted to the through hole (229) and the positioning groove (142) respectively. A return spring (24) is installed between the guide sleeve (224) and the lamp body connector (21).

8. A laser-guided high / low beam automotive headlight according to claim 7, characterized in that: The mounting bracket (231) is cylindrical in shape and is installed on the outside of the lamp body connector (21). The locking rod (232) slides through the inside of the mounting bracket (231). The reset spring (233) is wrapped around the outer surface of the locking rod (232).

9. A laser-guided high / low beam automotive headlight according to claim 8, characterized in that: The locking component (23) also includes a locking ring (234) threaded onto the outer surface of the mounting bracket (231). Both ends of the locking rod (232) are provided with arc-shaped surfaces. One end of the locking rod (232) abuts against the outer side of the anti-fool plate (228). When the locking rod (232) is inserted into the positioning groove (142), the locking ring (234) is rotated and displaced. At this time, the other end of the locking rod (232) abuts against the inner side of the locking ring (234).

10. A laser-guided high / low beam automotive headlight according to claim 1, characterized in that: The lamp housing (12) is snapped into the lamp holder (11), the light distribution lens (13) is fixedly sealed inside the lamp housing (12), multiple protective rods (16) are installed on the outer surface of the lamp holder (11), and the power module (15) is installed inside the lamp holder (11).

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