Light guide module and vehicle lamp

Abstract

The application provides a light guide module and a vehicle lamp. The light guide module comprises a thick-wall optical piece. The thick-wall optical piece has an entrance surface and an exit surface distributed along a light path transmission direction. Along the light path transmission direction, the thick-wall optical piece is provided with a cavity between the entrance surface and the exit surface. The cavity has opposite first and second surfaces. The entrance surface, the first surface, the second surface and the exit surface are distributed along the light path transmission direction. The first surface and the second surface of the cavity form an independent internal reflection space. After light enters the entrance surface, the light directly acts on the first surface of the cavity along a preset light path. The first surface can refract to preliminarily disperse the concentrated incident light. The second surface can continue to disperse the light by refraction. The light emitted by the light emitting piece can complete multiple reflections and refractions in the cavity, can disperse the light, can realize uniform light mixing, and can replace part of the solid material with the hollow cavity. On the premise of not affecting the optical function, the material consumption of the optical piece is directly reduced, so that the weight of the entire vehicle lamp is reduced.

Description

Technical Field

[0001] This application relates to the field of automotive lighting technology, and in particular to a light guide module and automotive lighting. Background Technology

[0002] With the rapid development of the automotive industry, automotive lights have increasingly higher requirements for light emission uniformity. In particular, the light emission uniformity of signal lights using thick-walled optical components and multiple LED light sources has always been a focus of attention and a challenge.

[0003] In related technologies, in order to improve the uniformity of light emission, some optical components are made very deep to facilitate uniform light mixing, some have texture added to the front or rear surface of thick-walled optical components, and some products add a light-diffusing sheet to the rear of the optical component. Although these solutions achieve the effect of uniform illumination, they are difficult to balance light efficiency and light emission uniformity. Utility Model Content

[0004] This application provides a light guide module and a vehicle lamp to improve the problem that thick-walled optical components in related technologies have difficulty in achieving both light efficiency and light emission uniformity.

[0005] Firstly, a light guide module is provided, comprising: A thick-walled optical component has an incident surface and an exit surface distributed along the optical path transmission direction. Along the optical path transmission direction, the thick-walled optical component is provided with a cavity located between the incident surface and the exit surface. The cavity has a first surface and a second surface facing each other. The incident surface, the first surface, the second surface and the exit surface are distributed along the optical path transmission direction.

[0006] In the light guide module of this application embodiment, the first and second surfaces of the cavity form an independent internal reflection space. After light enters from the light-incident surface, it will act directly on the first surface of the cavity along the preset light path. The concentrated incident light can be initially dispersed by the refraction of the first surface. The second surface can continue to disperse the light through refraction. That is, the light emitted by the light-emitting element can be reflected and refracted multiple times in the cavity, which can disperse the light and achieve uniform light mixing.

[0007] In addition, hollow chambers were used to replace some solid materials, which directly reduced the amount of material used in the optical components without affecting the optical function, thereby reducing the overall weight of the headlight.

[0008] In some embodiments, at least one of the first and second surfaces is provided with an optical pattern; And / or, the light-emitting surface is provided with optical patterns.

[0009] In the above embodiments, the optical pattern can scatter the light, thereby ensuring the uniformity of the emitted light.

[0010] In some embodiments, a focusing bracket is also included, which includes a focusing element disposed in a cavity and has light guide holes that extend along the optical path transmission direction. The inner surface of the light guide holes is a reflective surface, one end face of the light guide holes faces the first surface, and the other end face of the light guide holes faces the second surface.

[0011] In the above embodiment, the inner surface of the light guide hole can reflect the light that would otherwise scatter to the side, and the reflecting surface can reflect the light again to the second surface, reducing the loss of light scattering from the side of the chamber. In addition, this part of the light will be scattered, thereby ensuring the uniformity of the emitted light.

[0012] In some embodiments, the light guide hole has a first end face facing the first surface, and the first end face is spaced apart from the first surface. And / or, the light guide hole has a second end face facing the second surface, and the second end face is spaced apart from the second surface.

[0013] In the above embodiments, the large gap between the first surface and the first end surface, and the large gap between the second surface and the second end surface can be reduced to reduce light escaping to the side of the chamber, thereby ensuring light efficiency; The gap setting allows for a certain amount of assembly error, enabling the focusing element to be better assembled with the thick-walled optical element without the need for external force to force alignment. This protects the structural integrity of the component and reduces the precision requirements of the assembly equipment.

[0014] In some embodiments, the focusing support is detachably connected to the thick-walled optics via a cavity.

[0015] In the above embodiments, the focusing bracket is directly connected to the thick-walled optical component, and the position of the focusing bracket is directly constrained by the thick-walled optical component. It does not need to rely on other components such as the headlight housing and base, which simplifies the installation and reduces the errors and risks caused by the assembly of multiple components from the root. This makes the light guide module an independent and precise optical unit, making the light efficiency and uniformity more controllable. Since it does not rely on other components such as the headlight housing and base, the focusing bracket is only connected to the thick-walled optical component. No additional adaptation is needed for the headlight housing, base and other components. Existing mature designs can be used, thereby improving the overall production efficiency of the vehicle and reducing mold opening costs.

[0016] In some embodiments, the thick-walled optical element further includes a first mounting assembly, and the focusing bracket further includes a second mounting assembly. One of the first mounting assembly and the second mounting assembly has a plug-in portion, and the other has a plug-in hole. The plug-in portion has a first state of being plugged into the plug-in hole. In the first state, the first mounting assembly and the second mounting assembly abut against each other, and the focusing element is located within the cavity.

[0017] In the above embodiments, the insertion of the plug-in part and the plug-in hole realizes the guiding installation of the focusing bracket, ensuring that the focusing bracket is installed in place, avoiding skewing or misalignment during the installation of the focusing bracket, directly ensuring the initial position accuracy of the focusing element in the cavity, and thus ensuring the light efficiency and light output uniformity.

[0018] In some embodiments, both the first mounting component and the second mounting component are provided with connection holes, and when the insertion part is in the first state, the connection holes of the first mounting component are opposite to the connection holes of the second mounting component.

[0019] In the above embodiments, the first mounting component and the second mounting component can be fixed relative to each other by means of bolts or screws, thereby achieving the overall stability of the light guide module. In addition, the connection holes of the first mounting component and the second mounting component can be aligned to form a secondary confirmation, thereby ensuring that the light-concentrating bracket is installed in place, and thus ensuring the light efficiency and light output uniformity.

[0020] In some embodiments, the light-concentrating element is integrally formed with the second mounting assembly.

[0021] In the above embodiments, the light-concentrating element and the second mounting component are integrally formed without any weak points, reducing the possibility of breakage and loosening, and improving the overall assembly efficiency.

[0022] In some embodiments, the thick-walled optical element includes: First thick-walled optical body; The second thick-walled optical body is distributed at intervals from the first thick-walled optical body along the first direction; The third thick-walled optical body connects the first thick-walled optical body and the second thick-walled optical body, and is located on the same side of the first thick-walled optical body and the second thick-walled optical body; A cavity is formed between the first thick-walled optical body, the second thick-walled optical body, and the third thick-walled optical body.

[0023] In the above embodiments, optical patterns can be directly processed on the surface to achieve light refraction and dispersion. In addition, the amount of material used in the entire thick-walled optical component can be greatly reduced, the weight of the entire light guide module can be reduced, and the lightweight design of the entire vehicle lamp can be facilitated. In addition, when the focusing element is installed in the cavity, it can be quickly installed into the cavity through the opening on the side of the cavity, improving installation efficiency.

[0024] Secondly, a vehicle lamp is provided, comprising the light guide module described above, a light-incident surface having a light-concentrating element, and the light-concentrating element having a light-inlet; and The circuit board has a light-emitting element, which is located at the light inlet of the condenser. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the vehicle lamp provided in the embodiment of this application; Figure 2 This is an exploded structural diagram of the vehicle headlight provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the light guide module provided in the embodiments of this application; Figure 4 This is a schematic diagram of the optical path structure of the light guide module cross-section provided in the embodiments of this application.

[0026] Explanation of reference numerals in the attached figures: 100. Vehicle lights; 1. Light guide module; 10. Thick-walled optical component; 10a. Light-incident surface; 10b. Light-out surface; 10c. Chamber; 10c1. First surface; 10c2. Second surface; 11. First mounting assembly; 11a. Insertion hole; 11b. Connection hole; 12. First thick-walled optical body; 13. Second thick-walled optical body; 14. Third thick-walled optical body; 15. Positioning post; 16. Mounting block; 20. Concentrating bracket; 21. Concentrating element; 21a. Light guide hole; 21a1. First end face; 21a2. Second end face; 22. Second mounting assembly; 221. Insertion part; 30. Condenser; 30a. Light inlet; 2. Circuit board; 2a. Positioning hole; 201. Light-emitting component. Detailed Implementation

[0027] The technical solutions in this application will be clearly and thoroughly described below with reference to the accompanying drawings. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more than two.

[0028] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0029] Please see Figures 1 to 2 This application provides a vehicle light 100, including a light guide module 1 and a circuit board 2.

[0030] The following will combine Figures 1 to 4Further explanation will be given regarding the light guide module 1 and the circuit board 2.

[0031] The circuit board 2 is equipped with a light-emitting element 201. The circuit board 2 can provide mechanical support, i.e., fix the light-emitting element 201 and ensure its stable position; it can also provide power supply. The circuit board 2 is connected to the vehicle power supply through the circuit to provide a stable operating voltage and current to the light-emitting element 201. In addition, the circuit board 2 can also perform signal control function, receiving control signals from the vehicle (such as braking and steering commands) and driving the light-emitting element 201 to light up as needed (such as constant light or flashing), so as to realize the signal function of the vehicle light 100.

[0032] The light-emitting component 201 is generally an LED chip that converts electrical energy into light energy and provides a basic light source for the vehicle headlight 100 by emitting light itself.

[0033] The light guide module 1 includes a thick-walled optical component 10, which mainly functions as light transmission and homogenization. It has an incident light surface 10a and an exit light surface 10b along the light transmission direction. A condenser 30 is provided at the incident light surface 10a. The condenser 30 has a light inlet 30a, and the light-emitting component 201 is located at the light inlet 30a of the condenser 30. That is, by aligning the light-emitting component 201 with the light inlet 30a of the condenser 30, the diffused light of the light-emitting component 201 can be collected efficiently, reducing light scattering loss and improving the initial utilization rate of the light source.

[0034] After collecting light, the concentrator 30 uses its own optical structure (such as the parabolic surface or prism design of the inner wall) to focus and direct the light onto the light-incident surface 10a of the light-guiding module 1. This ensures that the light enters the light-guiding module 1 at a preset angle (such as vertical or a specific tilt angle), avoiding increased light homogenization pressure on the light-guiding module 1 due to chaotic incident angles, and further optimizing optical efficiency. The concentrator 30 is a commercially available product; its specific structure will not be further explained here.

[0035] Furthermore, please refer to Figure 4 The thick-walled optical component 10 has an incident surface 10a and an exit surface 10b distributed along the optical path transmission direction. Along the optical path transmission direction, the thick-walled optical component 10 is provided with a cavity 10c located between the incident surface 10a and the exit surface 10b. The cavity 10c has a first surface 10c1 and a second surface 10c2 facing each other. The incident surface 10a, the first surface 10c1, the second surface 10c2 and the exit surface 10b are distributed along the optical path transmission direction.

[0036] In this embodiment of the application, the first surface 10c1 and the second surface 10c2 of the chamber 10c form an independent internal space. After the light enters from the light incident surface 10a, it will act directly on the first surface 10c1 of the chamber 10c along the preset light path. The concentrated incident light can be initially dispersed through the refraction of the first surface 10c1 to avoid local strong light. The light processed by the first surface 10c1 will naturally be guided to the second surface 10c2 of the chamber 10c. The second surface 10c2 can further disperse the light through refraction and guide the light to the direction of the light-emitting surface 10b, reducing the light from escaping to non-light-emitting directions. That is, the light emitted by the light-emitting element 201 can be refracted multiple times within the cavity 10c, which can disperse the light and achieve uniform light mixing.

[0037] Furthermore, in this embodiment, a cavity 10c is provided inside the thick-walled optical component 10, and a portion of the solid material is replaced by a hollow cavity 10c. Without affecting the optical function, the amount of material used in the optical component is directly reduced, thereby reducing the weight of the entire vehicle lamp 100, which is beneficial to the lightweight design of the vehicle lamp 100.

[0038] Further, please refer to Figures 2 to 4 At least one of the first surface 10c1 and the second surface 10c2 is provided with an optical pattern. In this embodiment, both the first surface 10c1 and the second surface 10c2 are provided with optical patterns for illustrative purposes.

[0039] The optical pattern can be one or more of the following: corn kernel pattern, vertical stripes, and horizontal stripes. It can be a striped pattern or a mesh pattern. Its main function is to refract and reflect the light transmitted from the incident light surface 10a, thereby scattering the light.

[0040] Both the first surface 10c1 and the second surface 10c2 are provided with optical patterns. The optical pattern of the first surface 10c1 initially disperses and concentrates the light to avoid direct strong light. The optical pattern of the second surface 10c2 then directionally corrects the dispersed light, so that the light always travels towards the light-emitting surface 10b. In this process, the optical pattern can also disperse the light, thereby ensuring the uniformity of the emitted light.

[0041] It is also understandable that, in order to eliminate subtle brightness differences and light spots, in one embodiment of this application, optical patterns, such as grid patterns, can be provided on the light-emitting surface 10b. Through the scattering effect of the lines, the light emitted through the light-emitting surface 10b can be made more uniform.

[0042] It is understood that light refracted and reflected by the first surface 10c1 and the second surface 10c2 may be emitted through the opening connected to the cavity 10c, resulting in light loss. Therefore, in one embodiment of this application, a light-concentrating bracket 20 is further included, including a light-concentrating element 21. The light-concentrating element 21 is disposed in the cavity 10c and has light guide holes 21a extending along the light path transmission direction. The inner surface of the light guide hole 21a is a reflective surface. One end face of the light guide hole 21a faces the first surface 10c1, and the other end face of the light guide hole 21a faces the second surface 10c2.

[0043] After light enters from the light-incident surface 10a, it will preferentially enter the light guide hole 21a (instead of being directly dispersed into the chamber 10c). The highly reflective surface (such as a vacuum-coated reflective layer) on the inner surface of the light guide hole 21a can confine the light within the light guide hole 21a and force it to be transmitted along the light path. One end of the light guide hole 21a faces the first surface 10c1, and the other end faces the second surface 10c2. After light passes through the first surface 10c1 and enters the cavity 10c, it will directly enter the light guide hole 21a. During this process, most of the light will be directly transmitted to the second surface 10c2, and some light will illuminate the inner surface of the light guide hole 21a. In this embodiment, the inner surface is a reflective surface, so the reflective surface can reflect the light back to the second surface 10c2, reducing the loss of light escaping from the side of the cavity 10c.

[0044] In this embodiment, since the light-concentrating element 21 is located inside the cavity 10c, the light-concentrating element 21 will not occupy other space inside the headlight 100, which is beneficial to the overall layout and miniaturization design of the headlight 100.

[0045] Furthermore, in this embodiment, since some light rays are reflected by the inner surface of the light guide hole 21a, these light rays are scattered, thereby ensuring the uniformity of the emitted light.

[0046] It is understandable that the inner surface of the light guide hole 21a is a reflective surface. This can be achieved by vacuum-coating a reflective layer on the inner surface to ensure reflection efficiency, or by making the entire light-concentrating element 21 white. White also has a good reflective effect and can reduce costs to a certain extent.

[0047] Furthermore, please refer to Figure 4 The light guide hole 21a has a first end face 21a1 facing the first surface 10c1, and the first end face 21a1 is separated from the first surface 10c1. The light guide hole 21a has a second end face 21a2 facing the second surface 10c2, and the second end face 21a2 is separated from the second surface 10c2.

[0048] The gaps between the first end face 21a1 and the first face 10c1, and between the second end face 21a2 and the second face 10c2, indicate that the distances between the first end face 21a1 and the first face 10c1, and between the second end face 21a2 and the second face 10c2, are relatively small. Specifically, the distance between the first face 10c1 and the first end face 21a1 is 3-5mm, and the distance between the second face 10c2 and the second end face 21a2 is also 3-5mm. This reduces the amount of light escaping from the large gaps between the first face 10c1 and the first end face 21a1, and between the second face 10c2 and the second end face 21a2, to the side of the cavity 10c, thereby ensuring light efficiency.

[0049] In addition, the gap setting allows for a certain amount of assembly error, which enables the focusing element 21 to be better assembled with the thick-walled optical element 10 without the need for external force to force alignment. This protects the structural integrity of the components and reduces the requirements for the precision of the assembly equipment.

[0050] In one embodiment of this application, please refer to Figure 1 as well as Figure 2 The focusing bracket 20 is detachably connected to the thick-walled optical component 10 via the chamber 10c.

[0051] In terms of processing, the thick-walled optical component 10 and the condenser bracket 20 can be injection molded separately, each using a dedicated mold, eliminating the need for a complex integrated mold. In terms of maintenance, if either the condenser bracket 20 or the thick-walled optical component 10 is damaged, the detachable design can prevent the entire component from being scrapped, meaning that the damaged condenser bracket 20 or the thick-walled optical component 10 can be replaced individually.

[0052] Furthermore, in this embodiment, the light-concentrating bracket 20 is directly connected to the thick-walled optical component 10, and the position of the light-concentrating bracket 20 is directly constrained by the thick-walled optical component 10. It does not need to rely on other components such as the headlight 100 housing and base, which simplifies the installation and reduces the errors and risks caused by the assembly of multiple components from the root. This makes the light guide module 1 an independent and precise optical unit, making the light effect and uniformity more controllable.

[0053] Since it does not rely on other components such as the headlight housing and base, the focusing bracket 20 is only connected to the thick-walled optical component 10. The headlight housing, base and other components do not need additional adaptation and can use existing mature designs, thereby improving the overall production efficiency of the vehicle and reducing mold opening costs.

[0054] Furthermore, in one embodiment of this application, please continue to refer to... Figures 1 to 2 The thick-walled optical component 10 also includes a first mounting assembly 11, and the focusing bracket 20 also includes a second mounting assembly 22. One of the first mounting assembly 11 and the second mounting assembly 22 has a plug-in portion 221, and the other has a plug-in hole 11a. The plug-in portion 221 has a first state in which it is plugged into the plug-in hole 11a. In the first state, the first mounting assembly 11 and the second mounting assembly 22 abut against each other, and the focusing component 21 is located in the cavity 10c. Please see Figure 1 as well as Figure 2 In this embodiment of the application, the first mounting component 11 has a plug hole 11a and the second mounting component 22 has a plug portion 221 for exemplary description.

[0055] Since the plug-in part 221 is in the first state of being plugged into the plug-in hole 11a, when the user assembles the light guide module 1, the plug-in part 221 is plugged into the plug-in hole 11a until the first mounting component 11 and the second mounting component 22 come into contact. At this time, it is determined that the first mounting component 11 and the second mounting component 22 are installed in place. At this time, the plug-in part 221 is in the first state, and the light-concentrating element 21 is located in the cavity 10c. In this way, by plugging the plug-in part 221 into the plug-in hole 11a, the light-concentrating bracket 20 is guided and installed, ensuring that the light-concentrating bracket 20 is installed in place, avoiding skewing or misalignment during the installation of the light-concentrating bracket 20, directly ensuring the initial positional accuracy of the light-concentrating element 21 in the cavity 10c, thereby ensuring the light efficiency and light output uniformity.

[0056] Furthermore, in this embodiment, the first mounting component 11 is located on the side of the thick-walled optical component 10, and the second mounting component 22 is located on the side of the light-concentrating component 21, that is, outside the light-incident surface 10a, the light-exit surface 10b, and the cavity 10c. This will not block the light guide hole 21a, the optical pattern, or the light mixing space of the cavity 10c, thus avoiding local dark areas or light scattering caused by the mounting structure blocking.

[0057] In addition, the ample space for assembly operations improves efficiency and protects the optical surfaces. The side-mounted first mounting component 11 and second mounting component 22 provide a wide operating space for installation and fixation, while avoiding damage to the precision optical structure during assembly.

[0058] Continuing from the above, both the first mounting component 11 and the second mounting component 22 are provided with connection holes 11b. When the insertion part 221 is in the first state, the connection holes 11b of the first mounting component 11 and the connection holes 11b of the second mounting component 22 are opposite to each other.

[0059] like Figure 1 As shown, when the connecting holes 11b of the first mounting component 11 and the second mounting component 22 are opposite, the user can use bolts or screws or other connecting parts to fix the first mounting component 11 and the second mounting component 22 relative to each other, thereby achieving the overall stability of the light guide module 1. In this embodiment, bolts are used as connecting parts for illustrative purposes.

[0060] In this embodiment, the plug-in part 221 first completes the preliminary positioning to ensure that the focusing element 21 is in the correct position in the cavity 10c and the connecting hole 11b is aligned. This is equivalent to finding the coordinates for bolt installation. After the bolt is inserted into the aligned connecting hole 11b, the first mounting component 11 and the second mounting component 22 are rigidly fixed by thread locking, forming a double guarantee of plug-in anti-displacement and bolt anti-loosening, ensuring that the light efficiency and uniformity are not attenuated.

[0061] If the plug-in part 221 is not plugged in properly, the connecting holes 11b of the first mounting component 11 and the second mounting component 22 will be misaligned, and the plug-in position needs to be readjusted. Only when the connecting holes 11b are fully aligned can the bolt be inserted, which can form a secondary confirmation, thereby ensuring that the focusing bracket 20 is installed in place, and thus ensuring the light efficiency and light output uniformity.

[0062] Furthermore, in one embodiment of this application, the light-concentrating element 21 and the second mounting component 22 are integrally formed.

[0063] The automotive headlight 100 is subjected to vibration and high temperature environments for a long time. The focusing element 21 and the second mounting component 22 are integrally molded without weak points, reducing the possibility of breakage and loosening.

[0064] In addition, the one-piece molding can eliminate the step of installing the light-concentrating component 21 into the second mounting component 22, thereby improving the overall assembly efficiency.

[0065] Optionally, the thick-walled optical component 10 also includes a thick-walled optical body, which has an incident light surface 10a and an exit light surface 10b distributed along the optical path transmission direction, and is provided with a cavity 10c. The second mounting component 22 is located on the side of the thick-walled optical body along the optical path transmission direction. The second mounting component 22 is integrally formed with the thick-walled optical body. In this way, the structural stability of the entire thick-walled optical component 10 can be improved, and the step of mounting the second mounting component 22 to the thick-walled optical body can be eliminated, thereby improving the overall assembly efficiency.

[0066] In one embodiment of this application, please refer to Figure 4 The thick-walled optical element 10 includes a first thick-walled optical body 12, a second thick-walled optical body 13, and a third thick-walled optical body 14.

[0067] The first thick-walled optical body 12 has an incident surface 10a and a first surface 10c1 distributed along the optical path transmission direction. The second thick-walled optical body 13 is distributed at intervals with the first thick-walled optical body 12 along the optical path transmission direction. The second thick-walled optical body 13 has a second surface 10c2 and an exit surface 10b distributed along the optical path transmission direction.

[0068] The third thick-walled optical element 14 connects the first thick-walled optical element 12 and the second thick-walled optical element 13, and is located on the same side of the first thick-walled optical element 12 and the second thick-walled optical element 13. A cavity 10c is formed between the first thick-walled optical body 12, the second thick-walled optical body 13, and the third thick-walled optical body 14.

[0069] The first thick-walled optical body 12 and the second thick-walled optical body 13 are distributed at intervals along the first direction, naturally forming the opposite first surface 10c1 and second surface 10c2 of the cavity 10c. Optical patterns can be directly processed on the surface to achieve light refraction and dispersion.

[0070] Since the third thick-walled optical element 14 is located on the same side as the first thick-walled optical element 12 and the second thick-walled optical element 13, it is equivalent to the third thick-walled optical element 14 blocking the side of the cavity 10c along the optical path transmission direction, while the other directions are open. In this way, the material usage of the entire thick-walled optical element 10 can be greatly reduced, the weight of the entire light guide module 1 can be reduced, and it is beneficial to the lightweight design of the entire vehicle lamp 100.

[0071] Furthermore, when the focusing element 21 is installed inside the chamber 10c, the focusing element 21 can be quickly installed into the chamber 10c through the opening on the side of the chamber 10c, thereby improving the installation efficiency.

[0072] In one embodiment of this application, please refer to Figures 1 to 3 The thick-walled optical component 10 is also equipped with multiple positioning posts 15 and mounting blocks 16. The circuit board 2 is provided with multiple positioning holes 2a that correspond one-to-one with the multiple positioning posts 15. When the positioning posts 15 are inserted into the positioning holes 2a, they will forcibly constrain the offset and error of the circuit board 2, ensuring the accurate positioning of the condenser 30 and the light-emitting component 201.

[0073] During assembly, simply align the positioning hole 2a with the positioning post 15 and insert it to quickly find the correct position. There is no need to repeatedly adjust and align the light-emitting element 201 and the condenser 30. The mounting block 16 provides clear limits. When the circuit board 2 and the mounting block 16 are fully in contact, it is judged that the assembly is in place, thereby greatly improving the assembly efficiency.

[0074] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.

Claims

1. A light guide module, characterized in that, include: A thick-walled optical component has an incident surface and an exit surface distributed along the optical path transmission direction. Along the optical path transmission direction, the thick-walled optical component is provided with a cavity located between the incident surface and the exit surface. The cavity has a first surface and a second surface facing each other. The incident surface, the first surface, the second surface and the exit surface are distributed along the optical path transmission direction.

2. The light guide module according to claim 1, characterized in that, At least one of the first surface and the second surface is provided with an optical pattern; And / or, the light-emitting surface is provided with an optical pattern.

3. The light guide module according to claim 1, characterized in that, It also includes a focusing bracket, which includes a focusing element disposed in the cavity and has light guide holes that extend along the optical path transmission direction. The inner surface of the light guide holes is a reflective surface, one end face of the light guide holes faces the first surface, and the other end face of the light guide holes faces the second surface.

4. The light guide module according to claim 3, characterized in that, The light guide hole has a first end face facing the first surface, and the first end face is spaced apart from the first surface. And / or, the light guide hole has a second end face facing the second surface, and the second end face is spaced apart from the second surface.

5. The light guide module according to claim 3, characterized in that, The focusing bracket is detachably connected to the thick-walled optical component via the cavity.

6. The light guide module according to claim 5, characterized in that, The thick-walled optical component further includes a first mounting assembly, and the focusing bracket further includes a second mounting assembly. One of the first mounting assembly and the second mounting assembly has a plug-in portion, and the other has a plug-in hole. The plug-in portion has a first state in which it is plugged into the plug-in hole. In the first state, the first mounting assembly and the second mounting assembly abut against each other, and the focusing component is located in the cavity.

7. The light guide module according to claim 6, characterized in that, Both the first mounting component and the second mounting component are provided with connection holes. When the plug-in portion is in the first state, the connection holes of the first mounting component are opposite to the connection holes of the second mounting component.

8. The light guide module according to claim 6, characterized in that, The light-concentrating element is integrally formed with the second mounting component.

9. The light guide module according to claim 1, characterized in that, The thick-walled optical component includes: First thick-walled optical body; The second thick-walled optical element is distributed at intervals from the first thick-walled optical element along the optical path transmission direction; The third thick-walled optical body connects the first thick-walled optical body and the second thick-walled optical body, and is located on the same side of the first thick-walled optical body and the second thick-walled optical body; The cavity is formed between the first thick-walled optical body, the second thick-walled optical body, and the third thick-walled optical body.

10. A vehicle light, characterized in that, include: The light guide module according to any one of claims 1-9, wherein the light incident surface is provided with a light concentrator, and the light concentrator has a light inlet; as well as A circuit board, wherein a light-emitting element is provided on the circuit board, and the light-emitting element is located at the light inlet of the light concentrator.

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