Light guide device of vehicle headlamp

Abstract

The utility model relates to the technical field of vehicle headlamps, and discloses a light guide device of a vehicle headlamp, which comprises a reflecting plate, a light guide strip mounted in the reflecting plate, a base fixedly mounted at the left end of the light guide strip, a spring fixedly mounted in the base, and a moving column fixedly connected to one end, far away from the base, of the spring. A lens plate is installed on the front side face of the reflector, a buckle is arranged on the outer side face of the lens plate, and a shell is fixedly installed on the right side face of the reflector. The movable columns are pressed inwards into the base, then the first limiting blocks on the outer side faces of the light guide strips are correspondingly installed in the first limiting grooves in the reflector, and meanwhile the light guide strips and the base slide inwards to be installed at the corresponding positions. And then, the movable column can move outwards to the interior of the limiting hole under the acting force of the spring, so that the first limiting block and the movable column can effectively limit and fix the positions of the light guide strip and the base.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle headlights, in particular to a light guide device for a vehicle headlight. Background Art

[0002] Vehicle headlights are an important part of the automobile lighting system. Their main function is to provide drivers with sufficient light at night or in poor visibility to ensure driving safety. The basic working principle of automobile headlights is that the light emitted by the bulb is refracted and reflected by the reflector or other optical components to form a beam of light that illuminates the road ahead. In order to effectively control and distribute the light source, direct the light to a specific direction and area, avoid light scattering and waste, and enhance the focus and coverage of the light, a light guide device for vehicle headlights is proposed.

[0003] According to the search, the Chinese patent document, announcement number: CN202371643U, discloses a light guide device and a vehicle including the light guide device. After the light emitted by the light source is transmitted through the light guide bar, part of it is directly emitted from the transmission mirror, and the other part is reflected by the reflector and finally emitted from the transmission mirror. However, in actual use, since the light guide bar and the reflector and other parts are connected by buckles or screws, it is inconvenient to disassemble and assemble for later cleaning or maintenance, which reduces the overall working efficiency of the device; in addition, since the vehicle headlights generate heat during operation, and the device does not have effective heat dissipation treatment, it may cause the headlights to overheat, affecting its lighting effect and stability. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a light guide device for a vehicle headlight, which has the advantages of good light guide effect, easy disassembly and assembly, effective heat dissipation, and improved overall service life, thereby solving the above technical problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a light-guiding device for a vehicle headlight, comprising a reflector, a light-guiding strip is installed inside the reflector, a base is fixedly installed on the left end of the light-guiding strip, a spring is fixedly installed inside the base, a movable column is fixedly connected to the end of the spring away from the base, a lens plate is installed on the front side of the reflector, a buckle is provided on the outer side of the lens plate, a shell is fixedly installed on the right side of the reflector, an LED lamp group is fixedly installed inside the shell, a heat sink and a support are fixedly installed on the right side of the shell, and a fan is fixedly installed inside the support.

[0008] Preferably, a first limiting groove is provided inside the reflective plate, and first limiting blocks are provided on outer sides of the light guide bar and the base, and the first limiting blocks are slidably installed inside the first limiting groove.

[0009] Through the above technical solution, when installing the light guide strip, the first limit block on its outer side can be installed correspondingly in the first limit groove inside the reflector, and then the light guide strip and the base can be slid inward to install it in the corresponding position. The first limit block can effectively limit the position of the light guide strip and also provides convenience for later disassembly and assembly.

[0010] Preferably, a second limiting groove is opened inside the base, and a second limiting block is arranged on the outer side of the movable column. The second limiting block is slidably installed inside the second limiting groove, and a limiting hole is opened on the outer side of the reflective plate, and the movable column is installed inside the limiting hole.

[0011] Through the above technical solution, when installing the light guide strip, first press the movable column inward to the inside of the base, and then move the light guide strip and the base to the corresponding positions inside the reflector, the movable column can be moved outward to the inside of the limiting hole under the action of the spring, thereby effectively limiting and fixing the position of the light guide strip and the base, and also greatly facilitating the staff to disassemble and assemble later; in addition, the second limiting groove can also effectively limit the moving position of the second limiting block to prevent the movable column from falling off, etc., thereby improving the overall stability of the device.

[0012] Preferably, there are a plurality of buckles, and a plurality of mounting holes are provided on the outer side surfaces of the reflective plate and the lens plate.

[0013] Through the above technical solution, the lens plate can be effectively installed by correspondingly snapping multiple buckles onto the outer surface of the reflector, and multiple installation holes can facilitate the staff to install the entire device inside the car, thereby improving the overall convenience of the device.

[0014] Preferably, a groove is provided on the left side surface of the shell, and the light guide strip is installed inside the groove accordingly.

[0015] Through the above technical solution, when the light guide bar is installed correspondingly inside the groove, the light guide bar can be effectively connected to the LED light group. The light guide bar can effectively guide the light source to a specific direction. At the same time, the lens plate can effectively adjust the focusing degree of the light and change the divergence angle of the light. Therefore, it not only improves the overall light guiding effect of the device, but also facilitates the assembly of the staff, thereby improving the overall practicality of the device.

[0016] Preferably, there are multiple heat sinks, and the multiple heat sinks are all connected to the right side surface of the LED lamp group.

[0017] Through the above technical solution, when the LED lamp group generates heat when working, multiple heat sinks can effectively transfer the heat to the outside air. At the same time, starting the fan can force the air flow nearby, thereby effectively taking away the heat and improving the overall heat dissipation effect of the device.

[0018] Compared with the prior art, the utility model provides a light guide device for a vehicle headlight, which has the following beneficial effects:

[0019] 1. The utility model presses the movable column inwardly to the inside of the base, then installs the first limit block on the outer side of the light guide strip in the first limit groove inside the reflector, and slides the light guide strip and the base inwardly to install them in the corresponding position. Then the movable column can be moved outwardly to the inside of the limit hole under the action of the spring. Therefore, the first limit block and the movable column can effectively limit and fix the position of the light guide strip and the base. In addition, the second limit groove can also effectively limit the moving position of the second limit block to prevent the movable column from falling off, etc., which not only provides convenience for later disassembly and assembly, but also improves the overall stability of the device; the lens plate can be effectively installed by correspondingly connecting a plurality of buckles to the outer side of the reflector, and the plurality of mounting holes can facilitate the staff to install the entire device inside the car, thereby improving the overall convenience of the device.

[0020] 2. The utility model can effectively connect the light guide bar with the LED light group by making the light guide bar be installed correspondingly inside the groove when installing the shell. The light guide bar can effectively guide the light source to a specific direction. At the same time, the lens plate can effectively adjust the focusing degree of the light and change the divergence angle of the light. Therefore, it not only improves the overall light guiding effect of the device, but also facilitates the assembly of the staff, thereby improving the overall practicality of the device. When the LED light group is working, it will generate heat, and multiple heat sinks can effectively conduct the heat to the outside air. At the same time, starting the fan can force the air near it to flow, thereby effectively taking away the heat, thereby improving the overall heat dissipation effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a right side view schematic diagram of the light guide strip and other parts of the utility model structure;

[0023] Figure 3 It is a three-dimensional exploded cross-sectional schematic diagram of the structural base and other parts of the utility model;

[0024] Figure 4It is a top view cross-sectional exploded schematic diagram of the structural shell and other parts of the utility model.

[0025] Among them: 1. reflector; 2. light guide strip; 3. base; 4. spring; 5. movable column; 6. lens plate; 7. buckle; 8. shell; 9. LED light group; 10. heat sink; 11. support; 12. fan; 13. first limit groove; 14. first limit block; 15. second limit groove; 16. second limit block; 17. limit hole; 18. mounting hole; 19. groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-4 A light guide device for a vehicle headlight comprises a reflector 1, a light guide strip 2 is installed inside the reflector 1, a base 3 is fixedly installed on the left end of the light guide strip 2, a spring 4 is fixedly installed inside the base 3, a moving column 5 is fixedly connected to the end of the spring 4 away from the base 3, a lens plate 6 is installed on the front side of the reflector 1, a buckle 7 is provided on the outer side of the lens plate 6, a shell 8 is fixedly installed on the right side of the reflector 1, an LED lamp group 9 is fixedly installed inside the shell 8, a heat sink 10 and a support 11 are fixedly installed on the right side of the shell 8, and a fan 12 is fixedly installed inside the support 11.

[0028] Specifically, the reflector 1 is provided with a first limiting groove 13, and the outer sides of the light guide bar 2 and the base 3 are provided with first limiting blocks 14, and the first limiting blocks 14 are correspondingly slidably installed in the first limiting groove 13. The advantage is that, through this structure, when installing the light guide bar 2, the first limiting blocks 14 on the outer side can be correspondingly installed in the first limiting groove 13 inside the reflector 1, and then the light guide bar 2 and the base 3 can be slid inward to install them in the corresponding position, and the first limiting blocks 14 can effectively limit the position of the light guide bar 2, and also provide convenience for later disassembly and assembly.

[0029] Specifically, the base 3 is provided with a second limiting groove 15, and the outer side of the movable column 5 is provided with a second limiting block 16. The second limiting block 16 is correspondingly slidably installed in the second limiting groove 15, and the outer side of the reflector 1 is provided with a limiting hole 17, and the movable column 5 is installed in the limiting hole 17. The advantage is that, through this structure, when installing the light guide bar 2, the movable column 5 is first pressed inwardly to the inside of the base 3, and then when the light guide bar 2 and the base 3 are moved to the corresponding position inside the reflector 1, the movable column 5 can be moved outwardly to the inside of the limiting hole 17 under the action of the spring 4, thereby effectively limiting and fixing the position of the light guide bar 2 and the base 3, and at the same time, it is very convenient for the staff to disassemble and assemble later; in addition, the second limiting groove 15 can also effectively limit the position of the second limiting block 16 to prevent the movable column 5 from falling off, etc., thereby improving the overall stability of the device.

[0030] Specifically, there are multiple buckles 7, and multiple mounting holes 18 are provided on the outer sides of the reflector 1 and the lens plate 6. The advantage is that the lens plate 6 can be effectively installed by correspondingly snapping multiple buckles 7 onto the outer side of the reflector 1 through this structure, and the multiple mounting holes 18 can facilitate the staff to install the entire device inside the car, thereby improving the convenience of the entire device.

[0031] Specifically, a groove 19 is provided on the left side of the housing 8, and the light guide bar 2 is correspondingly installed inside the groove 19. The advantage is that when the light guide bar 2 is correspondingly installed inside the groove 19 through this structure, the light guide bar 2 can be effectively connected to the LED light group 9, and the light guide bar 2 can effectively guide the light source to a specific direction, and the lens plate 6 can effectively adjust the focusing degree of the light and change the divergence angle of the light, so that not only the overall light guiding effect of the device is improved, but also it is convenient for the staff to assemble, and the overall practicality of the device is improved.

[0032] Specifically, there are multiple heat sinks 10, and the multiple heat sinks 10 are connected to the right side of the LED lamp group 9. The advantage is that through this structure, when the LED lamp group 9 is working, heat will be generated, and the multiple heat sinks 10 can effectively conduct the heat to the outside air. At the same time, starting the fan 12 can force the air around it to flow, thereby effectively taking away the heat, thereby improving the overall heat dissipation effect of the device.

[0033] When in use, first press the moving column 5 inwardly to the inside of the base 3, then install the first limiting block 14 on the outer side of the light guide strip 2 in the first limiting groove 13 inside the reflector 1, and slide the light guide strip 2 and the base 3 inwardly to install them in the corresponding position, and then the moving column 5 can be moved outwardly to the inside of the limiting hole 17 under the action of the spring 4, so that the first limiting block 14 and the moving column 5 can effectively limit and fix the position of the light guide strip 2 and the base 3. In addition, the second limiting groove 15 can also effectively limit the position of the second limiting block 16 to prevent the moving column 5 from falling off, which not only provides convenience for later disassembly and assembly, but also improves the overall stability of the device; the lens plate 6 can be effectively installed by correspondingly snapping the multiple buckles 7 on the outer side of the reflector 1, and the multiple installation The mounting hole 18 can facilitate the staff to install the entire device inside the car, thereby improving the convenience of the entire device; thereafter, when installing the shell 8, the light guide bar 2 can be installed correspondingly inside the groove 19, thereby effectively connecting the light guide bar 2 to the LED lamp group 9, and the light guide bar 2 can effectively guide the light source in a specific direction, while the lens plate 6 can effectively adjust the focusing degree of the light and change the divergence angle of the light, thereby not only improving the overall light guiding effect of the device, but also facilitating the assembly of the staff, thereby improving the overall practicality of the device; when the LED lamp group 9 is working, it will generate heat, and the multiple heat sinks 10 can effectively conduct the heat to the outside air, while starting the fan 12 can force the air flow near it, thereby effectively taking away the heat therein, thereby improving the overall heat dissipation effect of the device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A light guide device for a vehicle headlight, comprising a reflector (1), characterized in that: A light guide strip (2) is installed inside the reflector (1), a base (3) is fixedly installed at the left end of the light guide strip (2), a spring (4) is fixedly installed inside the base (3), and one end of the spring (4) away from the base (3) is fixedly connected to a movable column (5), a lens plate (6) is installed on the front side of the reflector (1), and a buckle (7) is provided on the outer side of the lens plate (6), a shell (8) is fixedly installed on the right side of the reflector (1), an LED light group (9) is fixedly installed inside the shell (8), a heat sink (10) and a support (11) are fixedly installed on the right side of the shell (8), and a fan (12) is fixedly installed inside the support (11).

2. A light guide device for a vehicle headlight according to claim 1, characterized in that: The reflective plate (1) is provided with a first limiting groove (13) inside, and the outer side surfaces of the light guide strip (2) and the base (3) are both provided with a first limiting block (14), and the first limiting block (14) is slidably mounted inside the first limiting groove (13).

3. The light guide device for a vehicle headlight according to claim 1, characterized in that: A second limiting groove (15) is provided inside the base (3), a second limiting block (16) is provided on the outer side of the movable column (5), the second limiting block (16) is slidably mounted inside the second limiting groove (15), and a limiting hole (17) is provided on the outer side of the reflector (1), and the movable column (5) is mounted inside the limiting hole (17).

4. The light guide device for a vehicle headlight according to claim 1, characterized in that: The number of the buckles (7) is plural, and the outer sides of the reflector (1) and the lens plate (6) are both provided with a plurality of mounting holes (18).

5. The light guide device for a vehicle headlight according to claim 1, characterized in that: The left side surface of the housing (8) is provided with a groove (19), and the light guide strip (2) is correspondingly installed inside the groove (19).

6. The light guide device for a vehicle headlight according to claim 1, characterized in that: The number of the heat sink (10) is multiple, and the multiple heat sinks (10) are all connected to the right side surface of the LED lamp group (9).

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