Low-beam light guide part, mounting structure and vehicle lamp

Abstract

The utility model discloses a near light guide piece, installation structure and car lamp, including the near light guide piece body that utilizes silica gel material to carry out integral injection moulding, near light guide piece body includes semi-cylinder light guide part, one end of semi-cylinder light guide part is equipped with the inclined end face, the surface of inclined end face is fixedly connected with the light incident part, and the surface of inclined end face is equipped with the light incident part. According to the near light guide piece, the near light guide piece body is integrally formed in an injection mode through the silica gel material, large-scale production can be achieved, efficiency can be improved, cost can be reduced, after light enters the light inlet part, the light inlet part is not prone to falling off, and the near light guide piece body is not prone to falling off. The intersection point of light is located at the connecting position of the end of the light guide protrusion and the cylindrical light guide part, the light is emitted into the light outlet part after being conducted by the semi-cylindrical light guide part, the light guide protrusion is arranged on the inner side of the light outlet part, the light can be emitted downwards at a certain included angle according to the requirement of low-beam illumination, and therefore reasonable light distribution is achieved, and the service life of the light guide protrusion is prolonged. And a good low-beam lighting effect is provided.

Description

Technical Field

[0001] This utility model relates to the field of vehicle lighting technology, and in particular to a low beam light guide, mounting structure and vehicle lighting. Background Technology

[0002] In the development of modern automobiles, the vehicle lighting system is a key component for ensuring driving safety and providing a comfortable driving experience. Low beam headlights play an indispensable role in vehicle operation, especially at night or in low-visibility environments such as fog or rain. Low beam headlights provide drivers with a clear field of vision at close range, enabling them to promptly perceive road conditions, pedestrians, and other vehicles. As road traffic conditions become increasingly complex, the performance requirements for low beam headlights are also rising. They not only need to provide sufficient brightness but also ensure reasonable light distribution to avoid glare interference to other road users.

[0003] However, existing low beam devices often fail to effectively control the light propagation path, resulting in uneven light distribution. Some low beam devices also have inadequately designed light intake structures, failing to efficiently collect light and causing significant light loss as it enters the light guide. Furthermore, the structure of traditional low beam light guides may not accurately refract and reflect light according to the requirements of low beam illumination, thus affecting the lighting effect. Additionally, low beam lamps generate heat during operation; if heat is not dissipated effectively, heat accumulation may negatively impact the performance and lifespan of the lamp, ultimately affecting the lighting quality and reliability of the low beam. Utility Model Content

[0004] The purpose of this utility model is to provide a low beam light guide, an installation structure, and a vehicle lamp to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A low beam light guide includes a low beam light guide body integrally injection molded from silicone material. The low beam light guide body includes a semi-cylindrical light guide portion. One end of the semi-cylindrical light guide portion is provided with an inclined end face. A light-inlet portion is fixedly connected to the surface of the inclined end face. A funnel-shaped groove is formed in the middle of the light-inlet portion. A raised light-inlet protrusion is fixedly connected to the bottom of the groove. A hemispherical light-outlet portion is fixedly connected to the other end of the semi-cylindrical light guide portion. A light-guiding protrusion is also provided on the inner side of the light-outlet portion and fixedly connected to the bottom of the semi-cylindrical light guide portion. The light-guiding protrusion is integrally connected to the light-outlet portion.

[0007] As a preferred embodiment of the vehicle light of this utility model, the bottom of the groove is parallel to the inclined end face, and the top of the inclined end face is tangent to the top of the light-inlet part, the bottom of the inclined end face is tangent to the bottom of the light-inlet part, and the diameter of the light-inlet part is smaller than the diameter of the low beam guide body.

[0008] As a preferred embodiment of the vehicle light of this utility model, the bottom of the light guide protrusion is an arc-shaped surface, and the widest part of the light guide protrusion is the same as the diameter of the light intake part. When light enters the interior of the light intake part, it is converged by a cylindrical light guide part, and the converged light rays intersect at the connection between the end of the light guide protrusion and the cylindrical light guide part. The light rays are then guided by the cylindrical light guide part and enter the light output part before shooting downwards at a certain angle to form the low beam.

[0009] A mounting structure for a low beam light guide, used for mounting the low beam light guide as described in any one of the above, further includes a mounting sleeve fitted outside the semi-cylindrical light guide portion, wherein the inner wall of the mounting sleeve is tightly fitted with the semi-cylindrical light guide portion, the light guide protrusion and the inclined end face, the low beam light guide body and the light emitting portion are both placed outside the mounting sleeve, and a heat dissipation mechanism is provided on the outer side of the mounting sleeve.

[0010] As a preferred embodiment of the vehicle light of this utility model, the mounting sleeve is made of metal, and the heat dissipation mechanism consists of multiple strip grooves formed on the surface of the mounting sleeve, wherein the depth of the strip grooves is less than the radius of the semi-cylindrical light guide.

[0011] As a preferred embodiment of the vehicle light of this utility model, a retaining ring is fixedly connected to the outer side of the end of the mounting sleeve closest to it.

[0012] A vehicle headlight, comprising a lamp body formed by mounting any one of the aforementioned low beam light guides using any one of the aforementioned mounting structures, further comprising a lamp housing, wherein a mounting base is fixedly mounted inside the lamp housing, the surface of the mounting base has multiple mounting cavities, and multiple strip-shaped protrusions adapted to the width of strip-shaped grooves are fixedly connected inside the cavity of the mounting cavity, a mounting sleeve is inserted into the cavity, and the strip-shaped protrusions are tightly fitted together, a pressure plate is provided on the front of the mounting base, the surface of the pressure plate has multiple openings, the openings are fitted around the light-emitting part and press against the retaining ring, a back plate is mounted on the back of the lamp housing, a lamp plate is mounted on the inner side of the back plate, and multiple light-emitting LEDs are mounted on the surface of the lamp plate, the light-emitting ends of the light-emitting LEDs being placed inside the grooves.

[0013] As a preferred embodiment of the vehicle lamp of this utility model, the diameter of the opening is smaller than the diameter of the light-emitting part, and the pressure plate is fixedly connected to the mounting base by screws.

[0014] As a preferred embodiment of the vehicle lamp of this utility model, the mounting base and the back plate are both made of metal, and the outer side of the lamp housing is fixedly connected to a fixing ear, and the surface of the fixing ear is provided with a mounting hole.

[0015] This utility model has the following advantages compared with the prior art:

[0016] 1) The low-beam light guide body of this invention is integrally injection molded from silicone material, enabling mass production to improve efficiency and reduce costs. Simultaneously, the low-beam light guide body utilizes a funnel-shaped groove in the light-inlet section, with a light-inlet protrusion at the bottom of the groove to more effectively collect light, allowing more light to enter the light guide. The light is then converged by a semi-cylindrical light guide section. When the light enters the light-inlet section, the light intersection point is located at the connection between the light guide protrusion and the cylindrical light guide section. After being conducted by the semi-cylindrical light guide section, the light enters the light-exit section. Because the light-exit section has a light guide protrusion on its inner side, the light... The light beam is directed downwards at a certain angle according to the requirements of low beam illumination, thus achieving a reasonable light distribution and providing a good low beam illumination effect. By precisely controlling the light propagation path, scattering and unnecessary loss of light are avoided, improving the efficiency of light utilization and providing the driver with a clear and suitable near-field illumination vision, while reducing glare interference to other road users. Moreover, the silicone low beam guide has a suitable refractive index, which can effectively guide the light to propagate internally, reduce light loss, prevent yellowing or aging, and improve the service life of the headlight.

[0017] 2) The mounting sleeve of the low beam light guide of the present invention is fitted outside the semi-cylindrical light guide part. The wall of the mounting sleeve is tightly fitted with the semi-cylindrical light guide part, the light guide protrusion and the inclined end face, ensuring the stable installation of the light guide part. In addition, the metal mounting sleeve has good thermal conductivity. Combined with the heat dissipation mechanism formed by multiple strip grooves, it can effectively dissipate the heat generated by the light guide part during operation. The mounting base and back plate are also made of metal, which further enhances the heat dissipation performance, avoids the impact of heat accumulation on the performance and life of the lamp, improves the stability and reliability of the lamp, and ensures the overall performance of the low beam lamp. Attached Figure Description

[0018] Figure 1 A schematic diagram of the near-beam light guide structure proposed in this utility model;

[0019] Figure 2 This is one of the schematic diagrams of the near-beam light guide structure proposed in the utility model;

[0020] Figure 3 Schematic diagram of the near-beam light guide structure proposed for utility model (II);

[0021] Figure 4 A schematic diagram of the installation structure proposed for the utility model;

[0022] Figure 5 A schematic diagram of the mounting sleeve structure proposed for the utility model;

[0023] Figure 6 A schematic diagram of the vehicle lamp structure proposed for the utility model;

[0024] Figure 7 A schematic diagram of the disassembled vehicle headlights proposed for the utility model;

[0025] Figure 8 The utility model proposed Figure 7 Enlarged view of point A;

[0026] Figure 9 A schematic diagram of the optical path of the near-beam light guide proposed in this utility model;

[0027] Figure 10 A light source analysis diagram of the near-beam light guide proposed for the utility model;

[0028] Figure 11 A road view of the low beam light guide proposed for the utility model.

[0029] In the diagram: 100, low beam light guide body; 110, cylindrical light guide section; 111, inclined end face; 120, light inlet section; 121, groove; 122, light inlet protrusion; 130, light outlet section; 131, light guide protrusion; 200, mounting sleeve; 210, heat dissipation mechanism; 211, strip groove; 220, retaining ring; 300, lamp housing; 310, mounting base; 320, mounting cavity; 321, strip protrusion; 330, pressure plate; 331, opening; 340, back plate; 341, lamp board; 342, light-emitting LED bead; 350, fixing ear; 351, mounting hole. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0032] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Reference Figures 1 to 11 A low beam light guide includes a low beam light guide body 100 integrally injection molded from silicone material. The low beam light guide body 100 includes a semi-cylindrical light guide portion 110. One end of the semi-cylindrical light guide portion 110 is provided with an inclined end face 111. A light-inlet portion 120 is fixedly connected to the surface of the inclined end face 111. A funnel-shaped groove 121 is opened in the middle of the light-inlet portion 120. A raised light-inlet protrusion 122 is fixedly connected to the bottom of the groove 121. A hemispherical light-emitting portion 130 is fixedly connected to the other end of the semi-cylindrical light guide portion 110. A light-guiding protrusion 131 is also provided on the inner side of the light-emitting portion 130 and fixedly connected to the bottom of the semi-cylindrical light guide portion 110. The light-guiding protrusion 131 and the light-emitting portion 130 are integrally connected.

[0035] Specifically, the low beam guide body 100 is integrally injection molded from silicone material, allowing for rapid molding of the semi-cylindrical light guide 110, light inlet 120, and light outlet 130. This also effectively ensures the integrity and precision of each component. The semi-cylindrical light guide 110 serves as the main channel for light transmission, and its inclined end face 111 provides a specific low beam angle for the light inlet 120. The funnel-shaped groove 121 can initially focus the light, similar to a small concentrator. The light-inlet protrusion 122 at the bottom further enhances the light-gathering effect, allowing the light to enter the light guide body 100 more concentratedly. The light-guiding protrusion 131 on the inner side of the light-emitting part 130 is integrally connected to the light-emitting part 130, effectively ensuring structural stability. Furthermore, the light-guiding protrusion 131 guides the light during its propagation, ensuring that after being guided by the semi-cylindrical light guide part 110, the light is emitted from the light-emitting part 130 according to the requirements of low beam illumination, forming a low beam illumination effect (see...). Figure 9 and Figure 10 ).

[0036] In this embodiment: the bottom of the groove 121 is parallel to the inclined end face 111, and the top of the inclined end face 111 is tangent to the top of the light-inlet portion 120, the bottom of the inclined end face 111 is tangent to the bottom of the light-inlet portion 120, and the diameter of the light-inlet portion 120 is smaller than the diameter of the near-light guide body 100.

[0037] Specifically, the bottom of the groove 121 is parallel to the inclined end face 111, so that the light can maintain a relatively stable propagation direction when it enters the light-inlet section 120. The top of the inclined end face 111 is tangent to the top of the light-inlet section 120 and the bottom is tangent to the bottom of the light-inlet section 120. The tangent relationship ensures a smooth transition between the light-inlet section 120 and the inclined end face 111, avoiding unnecessary refraction or reflection of light at this connection point, thereby reducing light loss.

[0038] The diameter of the light-inlet section 120 is smaller than the diameter of the near-beam guide body 100. This difference in diameter helps to create a light-shielding effect around the light-inlet section 120, making the light entering the light-inlet section 120 more concentrated, reducing interference from external light, and further improving the efficiency of light collection.

[0039] In this embodiment: the bottom of the light guide protrusion 131 is an arc-shaped surface, and the widest part of the light guide protrusion 131 is the same as the diameter of the light inlet part 120. When light enters the light inlet part 120, it is gathered by the cylindrical light guide part 110, and the intersection of the gathered light rays is located at the connection between the end of the light guide protrusion 131 and the cylindrical light guide part 110. The light rays are then guided by the cylindrical light guide part 110 and enter the light outlet part 130 before being emitted downward at a certain angle to form near light.

[0040] Specifically, the bottom of the light guide protrusion 131 is an arc-shaped surface, which allows the light to transition more smoothly to the light output section 130 after being transmitted through the semi-cylindrical light guide section 110.

[0041] The widest point of the light guide protrusion 131 is the same as the diameter of the light inlet section 120. When light enters the light inlet section 120, the semi-cylindrical light guide section 110 can converge the light. Utilizing its special structure and optical properties, the light converges at the junction of the end of the light guide protrusion 131 and the cylindrical light guide section 110. After converging at the intersection, the light is then guided by the semi-cylindrical light guide section 110 into the light outlet section 130. The light guide protrusion 131 on the inner side of the light outlet section 130 changes the direction of light propagation, causing the light to shoot downwards at a certain angle, thereby forming a light distribution that meets the requirements of low beam illumination and providing the driver with a suitable near-field illumination field of view (e.g., ...). Figure 11 (As shown).

[0042] A mounting structure for a low beam light guide, used for mounting a low beam light guide in any of the above-mentioned cases, further includes a mounting sleeve 200 fitted outside a semi-cylindrical light guide portion 110. The inner wall of the mounting sleeve 200 is in close contact with the semi-cylindrical light guide portion 110, the light guide protrusion 131, and the inclined end face 111. The low beam light guide body 100 and the light emitting portion 130 are both located outside the mounting sleeve 200. A heat dissipation mechanism 210 is provided on the outer side of the mounting sleeve 200.

[0043] Specifically, the mounting sleeve 200 is fitted over the semi-cylindrical light guide 110, and the inner wall of the mounting sleeve 200 is in close contact with the semi-cylindrical light guide 110, the light guide protrusion 131, and the inclined end face 111. This ensures the stability of the low beam light guide within the mounting sleeve 200, preventing the light guide from shaking or shifting during use, thus ensuring the accuracy of the light propagation path. The low beam light guide body 100 and the light emitting part 130 are both placed outside the mounting sleeve 200, which not only ensures the normal operation of the light guide but also facilitates the heat dissipation mechanism 210 on the outside of the mounting sleeve 200 to dissipate heat from the light guide, preventing heat from accumulating inside the light guide and affecting its performance and lifespan.

[0044] In this embodiment: the mounting sleeve 200 is made of metal, and the heat dissipation mechanism 210 consists of multiple strip grooves 211 formed on the surface of the mounting sleeve 200, and the depth of the strip grooves 211 is less than the radius of the semi-cylindrical light guide part 110.

[0045] Specifically, the metal mounting sleeve 200 has good thermal conductivity, which can quickly conduct away the heat generated when the light guide is working. The heat dissipation mechanism 210 formed by multiple strip grooves 211 can increase the surface area of ​​the mounting sleeve 200, so that the heat can be dissipated more effectively to the surrounding environment. At the same time, the groove depth of the strip grooves 211 is smaller than the radius of the semi-cylindrical light guide 110, which ensures the heat dissipation effect of the heat dissipation mechanism 210 without affecting the overall structural strength of the mounting sleeve 200. This ensures that the mounting sleeve 200 can be stably fitted on the outside of the semi-cylindrical light guide 110, providing a solid support and good heat dissipation conditions for the light guide.

[0046] In this embodiment, a retaining ring 220 is fixedly connected to the outside of the end of the mounting sleeve 200 that is close to it.

[0047] Specifically, when the mounting sleeve 200 is inserted into the mounting cavity 320, the retaining ring 220 can cooperate with the pressure plate 330 to determine the insertion depth of the mounting sleeve 200, ensuring the accuracy of the installation. At the same time, the retaining ring 220 can also prevent the mounting sleeve 200 from accidentally coming out of the mounting cavity 320 after installation, further improving the stability of the installation structure.

[0048] A vehicle headlight, comprising a headlight body formed by mounting any of the aforementioned low beam light guides using any of the aforementioned mounting structures, further comprising a headlight housing 300, wherein a mounting base 310 is fixedly mounted inside the headlight housing 300, and the surface of the mounting base 310 has multiple mounting cavities 320, wherein multiple strip-shaped protrusions 321 adapted to the width of the strip-shaped groove 211 are fixedly connected inside the cavity of the mounting cavity 320, a mounting sleeve 200 is inserted into the mounting cavity 320, and the strip-shaped protrusions 321 are tightly fitted together, wherein a pressure plate 330 is provided on the front side of the mounting base 310, and multiple openings 331 are provided on the surface of the pressure plate 330, the openings 331 are fitted outside the light-emitting part 130 and press against the retaining ring 220, wherein a back plate 340 is mounted on the back side of the headlight housing 300, and a headlight plate 341 is mounted on the inner side of the back plate 340, wherein multiple light-emitting beads 342 are mounted on the surface of the headlight plate 341, and the light-emitting ends of the light-emitting beads 342 are placed inside the groove 121.

[0049] Specifically, the mounting base 310 is installed inside the lamp housing 300, and the multiple mounting cavities 320 on the surface of the mounting base 310 can be used to accommodate the mounting sleeve 200. When the mounting sleeve 200 is inserted into the mounting cavity 320, the strip-shaped protrusion 321 inside the mounting cavity 320 is tightly fitted with the strip-shaped groove 211 on the surface of the mounting sleeve 200. This not only ensures the stability of the mounting sleeve 200 and the mounting cavity 320, but also increases the contact area between them and improves the efficiency of heat conduction.

[0050] The pressure plate 330 is fitted onto the outside of the light-emitting part 130 through the opening 331 and presses against the retaining ring 220, so that the pressure plate 330 can firmly fix the mounting sleeve 200 in the mounting cavity 320 and prevent it from loosening.

[0051] The back plate 340 provides mounting support for the lamp plate 341, and the light-emitting end of the light-emitting bulb 342 of the lamp plate 341 is placed inside the groove 121, ensuring that the light emitted by the light-emitting bulb 342 can accurately enter the light-inlet section 120, and form low beam after being conducted by the low beam light guide, thereby realizing the low beam illumination function of the entire vehicle lamp.

[0052] In this embodiment, the diameter of the opening 331 is smaller than the diameter of the light-emitting part 130, and the pressure plate 330 is fixedly connected to the mounting base 310 by screws.

[0053] Specifically, when the pressure plate 330 is installed with the mounting base 310 by screws, due to the size difference between the opening 331 and the light-emitting part 130, the pressure plate 330 can form a certain pressure around the light-emitting part 130, thereby tightly fixing the mounting sleeve 200 in the mounting cavity 320, ensuring the stability of the low beam light guide installation structure and ensuring the normal operation of the low beam lighting vehicle lamp.

[0054] In this embodiment: the mounting base 310 and the back plate 340 are both made of metal, and the outer side of the lamp housing 300 is fixedly connected to the fixing ear 350, and the surface of the fixing ear 350 is provided with mounting holes 351.

[0055] Specifically, the metal mounting base 310 and back plate 340 have good thermal conductivity, which helps to dissipate the heat generated by the light guide and lamp plate 341 during operation; while the fixed ears 350 and mounting holes 351 can easily install the vehicle lamp onto the vehicle and use the vehicle lamp to provide stable low beam illumination for the driver.

[0056] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0057] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A near-light guide component, characterized in that, The device includes a near beam light guide body (100) integrally injection molded from silicone material. The near beam light guide body (100) includes a semi-cylindrical light guide part (110). One end of the semi-cylindrical light guide part (110) is provided with an inclined end face (111). A light-inlet part (120) is fixedly connected to the surface of the inclined end face (111). A funnel-shaped groove (121) is opened in the middle of the light-inlet part (120). A raised light-inlet protrusion (122) is fixedly connected to the bottom of the groove (121). A hemispherical light-outlet part (130) is fixedly connected to the other end of the semi-cylindrical light guide part (110). A light-guiding protrusion (131) is fixedly connected to the bottom of the semi-cylindrical light guide part (110) on the inner side of the light-outlet part (130). The light-guiding protrusion (131) is integrally connected to the light-outlet part (130).

2. The near-light guide according to claim 1, characterized in that: The bottom of the groove (121) is parallel to the inclined end face (111), and the top of the inclined end face (111) is tangent to the top of the light-inlet part (120), the bottom of the inclined end face (111) is tangent to the bottom of the light-inlet part (120), and the diameter of the light-inlet part (120) is smaller than the diameter of the near-light guide body (100).

3. The near-light guide according to claim 1, characterized in that: The bottom of the light guide protrusion (131) is an arc-shaped surface, and the widest part of the light guide protrusion (131) is the same as the diameter of the light inlet part (120). When light enters the light inlet part (120), it is converged by the cylindrical light guide part (110), and the converged light rays intersect at the connection between the end of the light guide protrusion (131) and the cylindrical light guide part (110). The light rays are then guided by the cylindrical light guide part (110) and enter the light outlet part (130) before shooting downwards at a certain angle to form near light.

4. A mounting structure for a low-beam light guide, used for mounting the low-beam light guide as described in any one of claims 1-3, characterized in that: It also includes a mounting sleeve (200) fitted outside the semi-cylindrical light guide (110). The inner wall of the mounting sleeve (200) is in close contact with the semi-cylindrical light guide (110), the light guide protrusion (131) and the inclined end face (111). The near beam light guide body (100) and the light emitting part (130) are both placed outside the mounting sleeve (200). A heat dissipation mechanism (210) is provided on the outer side of the mounting sleeve (200).

5. The mounting structure of a near-beam light guide according to claim 4, characterized in that: The mounting sleeve (200) is made of metal, and the heat dissipation mechanism (210) consists of multiple strip grooves (211) formed on the surface of the mounting sleeve (200), and the depth of the strip grooves (211) is less than the radius of the semi-cylindrical light guide (110).

6. The mounting structure of a near-beam light guide according to claim 4, characterized in that: A retaining ring (220) is fixedly connected to the outside of the end of the mounting sleeve (200) near the outside.

7. A vehicle lamp, comprising a lamp body formed by mounting the low beam guide element of any one of claims 1-3 via the mounting structure described in any one of claims 4-6, characterized in that: It also includes a lamp housing (300), inside which a mounting base (310) is fixedly installed. The surface of the mounting base (310) has multiple mounting cavities (320). Inside each mounting cavity (320) are multiple strip-shaped protrusions (321) that adapt to the width of the strip groove (211). A mounting sleeve (200) is inserted into the mounting cavity (320), and the strip-shaped protrusions (321) are tightly fitted together. The positive... The lamp housing (300) is provided with a pressure plate (330), and the pressure plate (330) has multiple openings (331) on its surface. The openings (331) are fitted around the light-emitting part (130) and press against the retaining ring (220). A back plate (340) is installed on the back of the lamp housing (300). A lamp plate (341) is installed on the inner side of the back plate (340). Multiple light-emitting lamp beads (342) are installed on the surface of the lamp plate (341). The light-emitting end of the light-emitting lamp beads (342) is placed inside the groove (121).

8. A vehicle light according to claim 7, characterized in that: The diameter of the opening (331) is smaller than the diameter of the light-emitting part (130), and the pressure plate (330) is fixedly connected to the mounting base (310) by screws.

9. A vehicle light according to claim 7, characterized in that: The mounting base (310) and the back plate (340) are both made of metal. The outer side of the lamp housing (300) is fixedly connected to the fixing ear (350), and the surface of the fixing ear (350) is provided with mounting holes (351).

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