A vehicle-mounted lens kit

Abstract

The utility model discloses a kind of vehicle-mounted lens kits, it is related to automobile headlamp technical field, to solve the problem of low light utilization rate of existing vehicle-mounted lens kits, insufficient assembly accuracy and poor lighting stability. The kit includes lamp holder, LED lamp bead, lens seat, first convex lens, second convex lens;Lens seat is located between LED lamp bead and second convex lens, first convex lens is fixed to the side of lens seat towards second convex lens and end face is convex, and the both sides of second convex lens are convex;Lamp holder is provided with mounting hole position to fix LED lamp bead, and is provided with light-reflecting inclined surface part around LED lamp bead, and lamp holder is connected with lens seat and second convex lens by limiting column and reserved hole adaptive connection. This kit can improve light utilization rate and lighting brightness, ensure assembly accuracy and lighting stability, and is suitable for automobile headlamp.

Description

Technical Field

[0001] This utility model relates to the field of automotive headlight technology, and in particular to an automotive lens kit. Background Technology

[0002] In the field of automotive headlight technology, automotive lens kits are core components affecting lighting performance, and their performance directly relates to driving safety and driving experience. Currently, automotive lens kits on the market generally suffer from problems such as low light utilization, insufficient assembly precision, and poor lighting stability.

[0003] Most products use only a single lens structure, which makes the light emitted by the LED beads prone to divergence, resulting in insufficient brightness for long-distance lighting. In addition, some side light is lost without being effectively utilized, further reducing luminous efficiency. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a vehicle-mounted lens kit.

[0005] This utility model proposes a vehicle lens kit, including an LED lamp bead, a lens holder, a first convex lens, and a second convex lens. The lens holder is located between the LED lamp bead and the second convex lens. The first convex lens is fixed on the surface of the lens holder and faces the side of the second convex lens. The end face of the first convex lens facing the second convex lens is set as a convex surface, and both sides of the second convex lens are set as convex surfaces.

[0006] Furthermore, the lamp holder has a mounting hole in the middle, and the LED lamp bead is fixedly installed inside the mounting hole.

[0007] Furthermore, the lamp holder has beveled surfaces on the side facing the lens holder and around the LED bead, which are inclined towards the LED bead to reflect the light emitted by the LED bead.

[0008] Furthermore, the lamp holder has several first reserved holes symmetrically opened inside, and the end face of the lens holder facing the lamp holder is symmetrically connected to a first limiting post, which is fixed inside the first reserved hole.

[0009] Furthermore, the lamp holder has a second reserved hole inside, and the lens holder has a third reserved hole inside. The second reserved hole and the third reserved hole are corresponding to each other. The end face of the second convex lens facing the lens holder is symmetrically connected to a second limiting post. The second limiting post is fixed inside the third reserved hole and the second reserved hole.

[0010] Furthermore, the diameter of the end of the second limiting post extending toward the lens seat gradually decreases, and both the third reserved hole and the second reserved hole are adapted to the second limiting post.

[0011] The beneficial effects of this utility model are as follows: Through the optimized optical path design of the double convex lens and the reflective bevel, and the precise positioning structure of the limiting post and the reserved hole, the first convex lens is used to initially converge the light directly from the LED lamp bead and the light reflected from the bevel of the lamp holder, and then the second convex lens, which has convex surfaces on both sides, is used for secondary correction and convergence. This makes full use of the side light and avoids light divergence, effectively improving the light utilization rate and the brightness of long-distance lighting. Furthermore, through the matching connection between the first limiting post and the first reserved hole, and the second limiting post and the corresponding reserved hole, the lamp holder, lens holder, and second convex lens are precisely assembled and stably fixed, preventing the displacement of components due to vehicle bumps, avoiding optical path deviation and light spot distortion, and ultimately ensuring the stable lighting effect of the car headlights, improving driving safety and driving experience. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the disassembled structure of this utility model; Figure 2 This is a half-sectional view of the assembled version of this utility model; Figure 3 This is a schematic diagram of the optical path of this utility model.

[0013] In the diagram: 1. Lamp holder; 11. Mounting hole; 12. First reserved hole; 13. Second reserved hole; 2. LED lamp bead; 3. Lens holder; 31. First limiting post; 32. Third reserved hole; 4. First convex lens; 5. Second convex lens; 51. Second limiting post. Detailed Implementation

[0014] Reference Figure 1-3 This utility model proposes a vehicle-mounted lens kit, mainly composed of a lamp holder 1, an LED bulb 2, a lens holder 3, a first convex lens 4, and a second convex lens 5, which achieves efficient light convergence and transmission, and is suitable for the lighting needs of automotive headlights. The specific technical solution is as follows: The lamp holder 1 has a mounting hole 11 in the middle that matches the size of the LED bead 2. The LED bead 2 is fixedly installed inside the mounting hole 11. This structure can prevent the LED bead 2 from shifting during vehicle travel and ensure the consistency of the light source position. At the same time, on the side of the lamp holder 1 facing the lens holder 3, there is a beveled surface that is inclined towards the LED bead 2 around the LED bead 2. This beveled surface is made of a highly reflective material, which can reflect the side light emitted by the LED bead 2 to the lens direction, reduce light loss, and improve the overall light efficiency. The lens holder 3 is located between the LED bead 2 and the second convex lens 5, playing a key role in supporting the first convex lens 4 and connecting the lamp holder 1 and the second convex lens 5. In order to achieve precise docking between the lens holder 3 and the lamp holder 1, several first reserved holes 12 are symmetrically opened inside the lamp holder 1. The end face of the lens holder 3 facing the lamp holder 1 is symmetrically connected with a first limiting post 31 that matches the size of the first reserved hole 12. During assembly, the first limiting post 31 is inserted and fixed inside the first reserved hole 12, which can complete the quick positioning of the lens holder 3 and the lamp holder 1 and avoid optical path deviation due to assembly deviation. The first convex lens 4 is fixed on the surface of the lens holder 3 facing the second convex lens 5, and its end face facing the second convex lens 5 is set as a convex surface. This design is used to initially converge the light directly from the LED lamp bead 2 and the light reflected from the inclined surface of the lamp holder. Since the light from the LED lamp bead 2 has a certain divergence angle, the first convex lens 4 can initially integrate the dispersed light into an approximately parallel beam, laying the foundation for the subsequent secondary optimization of the second convex lens 5. At the same time, the support structure of the lens holder 3 can ensure that the distance between the first convex lens 4 and the LED lamp bead 2 is fixed, ensuring the stability of the initial convergence effect. The second convex lens 5, as the terminal component for optical path optimization, has convex surfaces on both sides. It can converge and correct the light beam transmitted by the first convex lens 4, and finally form a high-brightness, narrow-spot illumination beam to meet the needs of automotive headlights for long-distance illumination. In order to achieve a stable connection between the second convex lens 5 and the lens holder 3 and the lamp holder 1, the lamp holder 1 has a second reserved hole 13 inside, and the lens holder 3 has a third reserved hole 32 corresponding to the position of the second reserved hole 13 inside. The end of the second convex lens 5 facing the lens holder 3 is symmetrically connected to a second limiting post 51, and the diameter of the end of the second limiting post 51 extending towards the lens holder 3 gradually decreases, forming a tapered guide structure. During assembly, the second limiting post 51 first passes through the third reserved hole 32 and then is inserted into the second reserved hole 13. The conical structure can guide the limiting post to smoothly enter the hole. At the same time, the diameters of the third reserved hole 32 and the second reserved hole 13 are both adapted to the second limiting post 51, ensuring that the second convex lens 5 is not loose after assembly and remains coaxial with the first convex lens 4, avoiding problems such as light deviation and light spot distortion caused by the two lenses not being coaxial. In actual operation, when the LED bead 2 is powered on, some light is directly directed to the first convex lens 4, while the rest is reflected by the beveled surface of the lamp holder 1 back to the first convex lens 4. The first convex lens 4 initially converges these rays before transmitting them to the second convex lens 5. The second convex lens 5 further converges the beam, ultimately forming a strong beam that meets automotive headlight lighting standards, achieving long-distance, high-definition illumination. The overall kit's structural design balances ease of assembly, optical path stability, and maximized luminous efficiency, effectively improving the lighting performance and lifespan of automotive headlights.

[0015] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A vehicle-mounted lens kit, characterized in that, The device includes a lamp holder (1), an LED bead (2), a lens holder (3), a first convex lens (4), and a second convex lens (5). The lens holder (3) is located between the LED bead (2) and the second convex lens (5). The first convex lens (4) is fixed on the surface of the lens holder (3) and faces the side of the second convex lens (5). The end face of the first convex lens (4) facing the second convex lens (5) is convex. Both sides of the second convex lens (5) are convex.

2. The vehicle lens kit according to claim 1, characterized in that, The lamp holder (1) has an installation hole (11) in the middle, and the LED lamp bead (2) is fixedly installed inside the installation hole (11).

3. The vehicle-mounted lens kit according to claim 2, characterized in that, The lamp holder (1) has a beveled surface that is inclined toward the LED lamp bead (2) on the side facing the lens holder (3) and around the LED lamp bead (2) to reflect the light emitted by the LED lamp bead (2).

4. The vehicle lens kit according to claim 1, characterized in that, The lamp holder (1) has several first reserved holes (12) symmetrically opened inside. The lens holder (3) is symmetrically connected to the end face of the lamp holder (1) with a first limiting post (31). The first limiting post (31) is fixed inside the first reserved hole (12).

5. The vehicle-mounted lens kit according to claim 1, characterized in that, The lamp holder (1) is provided with a second reserved hole (13) inside, and the lens holder (3) is provided with a third reserved hole (32) inside. The second reserved hole (13) corresponds to the third reserved hole (32). The second convex lens (5) is symmetrically connected to the end face of the lens holder (3) with a second limiting post (51). The second limiting post (51) is fixed inside the third reserved hole (32) and the second reserved hole (13).

6. The vehicle lens kit according to claim 5, characterized in that, The diameter of the end of the second limiting post (51) extending toward the lens seat (3) gradually decreases, and the third reserved hole (32) and the second reserved hole (13) are both adapted to the second limiting post (51).

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