Vehicle-mounted interface atmosphere lamp

CN224837101UActive Publication Date: 2026-10-09SHANDONG GETTOP ACOUSTIC CO LTD
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Patent Information

Application Number
CN202522431328.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-17
Publication Date
2026-10-09
Estimated Expiration
2035-11-17

AI Technical Summary

Technical Problem

但是采用导光件实际还是存在一些不足,如导光件出光效果不是非常均匀,存在肉眼可见的强光区和弱光区,影响用户体验;对于有两个USB端口的USB产品,则需要至少4颗LED才能实现充电口整体照亮的效果;此外,导光件在振动或温度变化作用下易产生松脱,结构可靠性不足

Benefits of technology

(1)采用双路径导光系统与三级反光结构,实现单光源驱动多接口的均匀照明。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of vehicle-mounted interface atmosphere lamp, including light guide support and light guide strip, light guide support and light guide strip detachably connect, light guide support adopts split structure, including left light guide support and right light guide support, left light guide support and right light guide support structure are same and symmetrically set, light guide strip includes two first light guide ring, V-shaped groove is equipped between two first light guide ring, two first light guide ring is symmetrically set along the central axis of V-shaped groove, the lower end entrance of V-shaped groove is equipped with light source, the utility model can improve the uniformity of the whole light emission of light emission part, improve user perception experience;Realized through single light source to light multiple USB ports again, greatly improve the utilization of light;Meanwhile, improve assembly reliability, adapt to different vehicle interface layout difference;Reduce material waste and assembly complexity, reduce production cost.
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Description

Technical Field

[0001] This utility model relates to the technical field of vehicle interface lighting devices, and in particular to a vehicle interface ambient light. Background Technology

[0002] With the development of automotive intelligence, in-vehicle USB ports (mainly Type-A / Type-C) have become core components for charging and multimedia interaction. However, these ports are generally located in low-light areas such as the dashboard and center console. Especially at night or in low-light environments, users need additional light sources to help locate the ports, which limits the user experience.

[0003] To facilitate quick location and connection of USB ports in dark or low-light conditions, backlighting is often used at the USB ports for illumination. Two main approaches are employed: one is a direct LED approach, using multiple LEDs for direct lighting, which is costly and involves too many components; the second approach uses a light guide element surrounding the charging port, requiring 2-3 LEDs placed above and below the USB port, all mounted on the same PCB. During operation, the direct light emitted from the LEDs enters the light guide element, made of diffused light-guiding material, which then guides the light to the light-emitting surfaces surrounding the USB port, illuminating it. This approach typically requires only 2-3 LEDs to illuminate the entire charging port. However, there are still some shortcomings in using light guides. For example, the light output effect of the light guide is not very uniform, with visible strong light areas and weak light areas, which affects the user experience. For USB products with two USB ports, at least four LEDs are needed to achieve the effect of illuminating the entire charging port. In addition, the light guide is prone to loosening under vibration or temperature changes, resulting in insufficient structural reliability. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the above-mentioned traditional technologies and provide an in-vehicle interface ambient light. This light is based on a ring-shaped light guide structure with the synergistic effect of a light guide bracket and a light guide strip. It can improve the uniformity of light output of the light-emitting part and enhance the user's visual experience. It can also realize the lighting of multiple USB ports by a single light source, which greatly improves the light utilization rate. At the same time, it improves the assembly reliability, adapts to the differences in interface layout of different vehicle models, reduces material waste and assembly complexity, and lowers production costs.

[0005] The purpose of this utility model is achieved through the following technical measures: a vehicle-mounted interface ambient light, including a light guide bracket and a light guide strip, the light guide bracket and the light guide strip are detachably connected, the light guide bracket adopts a split structure, including a left light guide bracket and a right light guide bracket, the left light guide bracket and the right light guide bracket have the same structure and are symmetrically arranged, the light guide strip includes two first light guide rings, a V-shaped groove is provided between the two first light guide rings, the two first light guide rings are axially symmetrically arranged along the central axis of the V-shaped groove, and a light source is provided at the lower entrance of the V-shaped groove.

[0006] As a further improvement to the above technical solution: The first light guide ring includes a first reflective part, a second reflective part and a third reflective part. The outer wall of the first reflective part is uniformly provided with a plurality of first reflective grooves, the outer wall of the second reflective part is uniformly provided with a plurality of second reflective grooves, and the outer wall of the third reflective part is uniformly provided with a plurality of third reflective grooves.

[0007] The third reflective groove, the second reflective groove, and the first reflective groove are all "V" shaped grooves.

[0008] The density of several third reflective grooves is greater than the density of several second reflective grooves, which is greater than the density of several first reflective grooves.

[0009] The depth of some third reflective grooves is greater than the depth of some second reflective grooves, which is greater than the depth of some first reflective grooves.

[0010] The left-side light guide bracket has a positioning ring on its front side, and a second light guide ring is provided on the inner side of the positioning ring. The second light guide ring protrudes forward, and the second light guide ring and the positioning ring are an integral structure.

[0011] The positioning ring is provided with a third buckle on the upper and lower sides, a first positioning rib on the left side, and a second positioning rib on the right side.

[0012] A vehicle-mounted interface ambient light also includes a circuit board. USB plugs are provided on both sides of the front of the circuit board. The light source is set on the circuit board between the two USB plugs. The two USB plugs pass through the second light guide rings of the left light guide bracket and the right light guide bracket, respectively.

[0013] The left and right light guide brackets are respectively connected to the circuit board via clips.

[0014] The left light guide bracket has first buckles on both sides of its rear portion. A first limiting groove corresponding to the first buckle is provided on the circuit board. The rear end of the first buckle passes downward through the first limiting groove and is provided with a limiting rib. The right light guide bracket has second buckles on both sides of its rear portion. A second limiting groove corresponding to the second buckle is provided on the circuit board. The rear end of the second buckle passes downward through the second limiting groove and is provided with a limiting rib. The length of the first buckle is greater than the length of the second buckle.

[0015] Due to the adoption of the above technical solution, the advantages of this utility model compared with the prior art are: (1) A dual-path light guide system and a three-level reflective structure are adopted to achieve uniform illumination of multiple interfaces driven by a single light source.

[0016] A dual-path light guide is constructed through the synergistic effect of the light guide strip and the light guide bracket. The light emitted from the light source is split into two parallel beams by the V-shaped groove inside the light guide strip, extending along the light guide strip to the first light guide ring. Through its three-stage reflective structure—a progressive reflection compensation mechanism consisting of a first reflective section, a second reflective section, and a third reflective section—the intensity differences between the strong, medium, and weak light areas are balanced. The depth and density of the grooves in the reflective structure are designed with a gradient, and the V-shaped sharp corners point towards the second light guide ring, precisely controlling the reflection efficiency and directionality. Finally, the light is further mixed through the diffusion surface of the second light guide ring microstructure on the light guide bracket, eliminating residual light spots and achieving uniform light output from the annular aperture. Compared to traditional multi-LED solutions, this design requires only one LED to drive dual USB interface lighting, reducing energy consumption by 75% and significantly improving light utilization and user experience.

[0017] (2) A split light guide bracket and a multi-level fixing structure are adopted to improve versatility and assembly reliability.

[0018] The light guide bracket adopts a split design, with the two side brackets using differentiated clips and limiting grooves on the circuit board to prevent incorrect installation. The light guide strip is fixed to the light guide bracket in six directions through positioning rings, a third clip, and positioning ribs, ensuring no risk of loosening under vibration or temperature changes. This design balances versatility and reliability: the split structure reduces material waste, and replacing the light guide strip allows for quick adaptation to the center distance differences of USB interfaces in different car models; the synergistic effect of the clips and positioning ribs simplifies the assembly process and prevents installation errors through structural differences, significantly improving production efficiency and product compatibility.

[0019] (3) The design of microstructure and reflective groove is adopted to solve the problem of uniformity of light effect of traditional light guide.

[0020] To address the issue of uneven brightness in the annular aperture caused by light escape loss in existing light guide components, a dual homogenization design is used to optimize light efficiency: First uniform dispersion: The first light guide ring of the light guide strip adopts a three-level reflective structure. Through the density and depth gradient design of the reflective grooves, the light attenuation is compensated step by step, so that the light intensity in the strong light area, medium light area and weak light area tends to be consistent. Secondary uniform dispersion: The surface of the second light guide ring of the light guide bracket is set with a frosted or textured microstructure to further mix the light and bridge the residual differences in brightness and darkness, ultimately forming a uniform ring light band that precisely matches the outline of the USB plug.

[0021] This technology completely eliminates the strong / weak light distinction in traditional light guides, significantly improving the user's perception and positioning convenience when operating blindly at night.

[0022] (4) Single light source multi-interface driving technology reduces system cost and energy consumption.

[0023] Traditional solutions require at least four LEDs for dual USB ports, while this invention, through a dual-path light guide system and optimized reflective structure, only requires a single LED to achieve uniform illumination of both ports. The light source is centrally located at the light inlet in the light guide strip. Through cascaded optical path transmission and two rounds of light intensity equalization, light energy is efficiently distributed to multiple light-emitting areas, completely solving the problems of light source redundancy and energy consumption. Simultaneously, it reduces the number of components and wiring complexity, significantly lowering production costs and maintenance difficulty.

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0025] Figure 1 This is an exploded structural diagram of an in-vehicle interface ambient light according to an embodiment of this utility model; Figure 2 This is a structural schematic diagram of a vehicle-mounted interface ambient light according to an embodiment of this utility model; Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure along the AA direction; Figure 4 This is a three-dimensional structural diagram of a vehicle interface ambient light from another angle in an embodiment of this utility model; Figure 5 This is a schematic diagram of the structure of the light guide strip in an embodiment of this utility model; Figure 6 This is a schematic diagram of the light path of the light guide element in an embodiment of this utility model.

[0026] In the diagram, 100 - light guide strip, 110 - first light guide ring, 111 - parallel light ray, 112 - first parallel light path, 113 - second parallel light path, 120 - V-groove, 131 - strong light area, 132 - medium light area, 133 - weak light area, 141 - first reflective part, 142 - second reflective part, 143 - third reflective part, 144 - first reflective groove, 145 - second reflective groove, 146 - third reflective groove, 2 00-Light guide bracket, 201-Left light guide bracket, 202-Right light guide bracket, 210-First buckle, 220-Second buckle, 230-Third buckle, 240-Positioning ring, 260-Limiting rib, 270-Second light guide ring, 280-First positioning rib, 290-Second positioning rib, 300-USB plug, 400-Light source, 500-Circuit board, 510-First limiting groove, 520-Second limiting groove. Detailed Implementation

[0027] 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.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying 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. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Example

[0030] like Figure 1-5 As shown, an in-vehicle interface ambient light includes a light guide bracket 200 and a light guide strip 100, both manufactured by injection molding. The light guide strip 100 is made of transparent PC material and is responsible for light transmission; the light guide bracket 200 is made of diffuse PC material and serves as the final light-emitting carrier. The two can achieve diverse light effects through transparent, semi-transparent, or colored materials. The light guide bracket 200 and the light guide strip 100 are detachably connected.

[0031] The light guide strip 100 includes two first light guide rings 110, and a V-groove 120 is provided between the two first light guide rings 110. The two first light guide rings 110 are arranged symmetrically along the central axis of the V-groove 120. A light source 400 is provided at the lower entrance of the V-groove 120. The light source 400 is a single surface-mount LED that emits initial light into the light guide strip 100.

[0032] The first light guide ring 110 is racetrack-shaped. Light is refracted and lost multiple times within the first light guide ring 110 to form a strong light area 131, a medium light area 132, and a weak light area 133. The first light guide ring 110 includes a first reflective part 141, a second reflective part 142, and a third reflective part 143, which correspond to the strong light area 131, the medium light area 132, and the weak light area 133, respectively. A plurality of first reflective grooves 144 are uniformly provided on the outer wall of the first reflective part 141, a plurality of second reflective grooves 145 are uniformly provided on the outer wall of the second reflective part 142, and a plurality of third reflective grooves 146 are uniformly provided on the outer wall of the third reflective part 143. The third reflective grooves 146, the second reflective grooves 145, and the first reflective grooves 144 are all "V"-shaped grooves. The third reflective grooves 146, the second reflective grooves 145, and the first reflective grooves 144 are collectively referred to as the reflective structure.

[0033] The density of a plurality of third reflective grooves 146 is greater than the density of a plurality of second reflective grooves 145 is greater than the density of a plurality of first reflective grooves 144, and the depth of a plurality of third reflective grooves 146 is greater than the depth of a plurality of second reflective grooves 145 is greater than the depth of a plurality of first reflective grooves 144.

[0034] The dense and deep third reflective groove 146 significantly enhances the light in the low-light area 133 through high-frequency reflection, reducing light loss; the sparse and shallow first reflective groove 144 only slightly reflects the strong light in the high-light area 131, avoiding excessive attenuation. At the same time, the difference in the depth of the reflective grooves can adjust the refraction and reflection ratio—deep grooves deflect more weak light, while shallow grooves retain some strong light.

[0035] This structure balances light distribution through a multi-stage reflection mechanism, solving the problem of light intensity differences in the high-light zone 131, medium-light zone 132, and low-light zone 133 caused by multiple refractions and escape losses of light within the first light guide ring 110. When light travels along the light guide strip 100, the high-light zone 131 is closer to the light source 400, and its intensity gradually decreases with increasing distance, eventually forming the low-light zone 133 at the end. This structure, through a three-stage graded reflection strategy, makes the intensity of the emitted light from the three zones tend to be consistent.

[0036] The reflective groove adopts a V-shaped design, with its pointed corner facing the second light guide ring 270. Compared to a planar structure, the V-shaped groove can collect incident light more efficiently and concentrate reflected light to the target area, improving the light-receiving efficiency of the second light guide ring 270. This design balances reflection efficiency and directional control, enabling precise transmission of light after homogenization. The zone adaptation strategy further enhances the light intensity balance effect: the strong light zone 131 is subject to a small amount of reflection by the first reflector 141, only fine-tuning the initial strong light; the medium light zone 132 is further balanced by moderate reflection from the second reflector 142; the weak light zone 133 relies on the high-frequency reflection of the third reflector 143 to significantly improve the weak light intensity.

[0037] Ultimately, during transmission, the light passes sequentially through the high-light zone 131, the medium-light zone 132, and the low-light zone 133. The reflective structure compensates for the attenuation differences through a progressive reflection compensation mechanism, making the emitted light intensity in the three zones more consistent and achieving a uniform lighting effect.

[0038] The light guide bracket 200 adopts a split structure, including a left light guide bracket 201 and a right light guide bracket 202. The left light guide bracket 201 and the right light guide bracket 202 have the same structure and are symmetrically arranged. Taking the left light guide bracket 201 as an example, a positioning ring 240 is provided on the front side of the left light guide bracket 201. A second light guide ring 270 is provided on the inner side of the positioning ring 240. The second light guide ring 270 protrudes forward and is an integral structure with the positioning ring 240. A third buckle 230 is provided on the upper and lower sides of the positioning ring 240, a first positioning rib 280 is provided on the left side of the positioning ring 240, and a second positioning rib 290 is provided on the right side of the positioning ring 240.

[0039] A vehicle-mounted interface ambient light also includes a circuit board 500. USB plugs 300 are respectively provided on both sides of the front of the circuit board 500. A light source 400 is disposed on the circuit board 500 between the two USB plugs 300. The two USB plugs 300 pass through the second light guide rings 270 of the left light guide bracket 201 and the right light guide bracket 202 respectively.

[0040] To achieve a stable connection, the left light guide bracket 201 and the right light guide bracket 202 are respectively snapped into the circuit board 500 via clips. Specifically, the left light guide bracket 201 has first clips 210 on both sides of its rear portion, and the circuit board 500 has a first limiting groove 510 corresponding to the first clips 210. The rear end of the first clips 210 passes downward through the first limiting groove 510 and has a limiting rib 260. The right light guide bracket 202 has second clips 220 on both sides of its rear portion, and the circuit board 500 has a second limiting groove 520 corresponding to the second clips 220. The rear end of the second clips 220 passes downward through the second limiting groove 520 and has a limiting rib 260. The length of the first clips 210 is greater than the length of the second clips 220.

[0041] The first buckle 210 engages with the first limiting groove 510, and the second buckle 220 engages with the second limiting groove 520. Together with the clamping of the limiting rib 260, they ensure that the left light guide bracket 201, the right light guide bracket 202 and the circuit board 500 are firmly fixed.

[0042] The light guide bracket 200 adopts a split structure, which has the following advantages in terms of function and material optimization: First, the split structure reduces the use of materials in unnecessary areas, significantly improving material utilization; second, the manufacturing difficulty of the split structure mold is reduced; in addition, when the center distance of the USB plug 300 needs to be adjusted, only the light guide strip 100 needs to be replaced to adapt to the new center distance, while the light guide brackets on both sides do not need to be replaced, effectively enhancing the universality between different product models.

[0043] Installation and Fixing of the Light Guide Strip 100: The light guide strip 100 is stably assembled with the light guide bracket 200 through a multi-stage structure. First, the two first light guide rings 110 of the light guide strip 100 are respectively fitted into the positioning rings 240 of the left light guide bracket 201 and the right light guide bracket 202 to achieve precise guidance and positioning, ensuring that the end face of the light guide strip 100 is tightly attached to the surface of the light guide bracket 200. Second, multiple third buckles 230 are distributed on the light guide bracket 200, and the engagement of the third buckles 230 with the end face of the light guide strip 100 forms an axial constraint force. In addition, the first positioning rib 280 and the second positioning rib 290 on the light guide bracket 200 limit the light guide strip 100 in the horizontal direction to prevent it from shifting under vibration or external force. Through the coordinated action of the positioning ring 240 for guidance, the third buckle 230 for locking, and the first positioning rib 280 and the second positioning rib 290 for limiting, the connection between the light guide strip 100 and the light guide bracket 200 achieves a stable state with zero looseness and zero offset, significantly improving the structural reliability.

[0044] To avoid assembly errors, this invention employs structural differences to prevent mis-assembly: the elastic arm lengths of the first latch 210 and the second latch 220 are different, and the distances between the corresponding first limiting groove 510 and second limiting groove 520 and the edge of the circuit board 500 are also different. This design forcibly restricts the left light guide bracket 201 to only match the first limiting groove 510 on the left side of the circuit board 500, and the right light guide bracket 202 to only match the second limiting groove 520 on the right side, effectively preventing the confused installation of the left and right brackets.

[0045] The assembly process of this utility model is clear and efficient: First, the left light guide bracket 201 and the right light guide bracket 202 are respectively snapped onto the corresponding sides of the circuit board 500, and quick positioning is achieved through the cooperation of the first buckle 210, the second buckle 220 and the first limiting groove 510 and the second limiting groove 520; then the light guide strip 100 is installed on the outer periphery of the two light guide brackets, and the final assembly is completed by the coordinated fixing of the positioning ring 240, the third buckle 230 and the first positioning rib 280 and the second positioning rib 290.

[0046] like Figure 6As shown, light originates from the light source 400 and first enters the light guide strip 100 to form parallel light rays 111. After bidirectional reflection by the V-groove 120, it forms a first parallel light 112 and a second parallel light 113. These two light rays are transmitted along the extension direction of the light guide strip 100 to the first light guide ring 110, and are then transmitted through the second light guide ring 270 of the light guide bracket 200 via its inner wall. This process achieves light intensity uniformity through the following mechanism: First uniform dispersion: The reflective structure of the first light guide ring 110 compensates for the difference in light intensity attenuation through multi-level reflection, so that the intensity of the emitted light in the weak light area, medium light area and strong light area tends to be consistent; Secondary uniform dispersion: The microstructure diffusion surface of the second light guide ring 270 further mixes the light, eliminates residual light spots, and finally forms a uniform ring-shaped light circle.

[0047] The microstructure surface of the second light guide ring 270 receives light transmitted through the outer wall of the light guide strip 100, diffuses it through the surface texture, and forms a ring-shaped light circle with no obvious difference in brightness.

[0048] The second light guide ring 270 is located in the center of the light guide bracket 200, and its light-emitting surface shape precisely matches the outer contour of the USB plug 300. The light guide strip 100 surrounds the outer periphery of the second light guide ring 270. This structural design allows the light from the light source 400 to be refracted sequentially by the first light guide ring 110 of the light guide strip 100 and diffused by the second light guide ring 270 of the light guide bracket 200, ultimately presenting a ring-shaped light band consistent with the shape of the USB plug 300. This design, through dual light guide paths and two light intensity homogenization processes, significantly improves the uneven light output problem of traditional light guide components. In dark environments, the ring-shaped light ring can accurately illuminate the USB plug area, improving user convenience and visual comfort, especially suitable for nighttime blind operation scenarios.

[0049] The advantages of this utility model are as follows: 1. Reliable connection: The double clamping of the third buckle 230 with the first positioning rib 280 and the second positioning rib 290 ensures that there is no risk of loosening between the components; 2. Convenient processing: The light guide bracket 200 adopts a split structure design to simplify the mold manufacturing difficulty and reduce production costs; 3. Install expandability: When the center distance of the USB plug 300 needs to be adjusted, the center distance of the light guide strip 100 can be adjusted (i.e., the length of the light guide strip 100 is changed) to quickly adapt to the layout requirements of the USB plug 300 of different car models and extend the product life cycle.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vehicle-mounted interface ambient light, characterized in that: It includes a light guide bracket (200) and a light guide strip (100). The light guide bracket (200) and the light guide strip (100) are detachably connected. The light guide bracket (200) adopts a split structure, including a left light guide bracket (201) and a right light guide bracket (202). The left light guide bracket (201) and the right light guide bracket (202) have the same structure and are symmetrically arranged. The light guide strip (100) includes two first light guide rings (110). A V-groove (120) is provided between the two first light guide rings (110). The two first light guide rings (110) are axially symmetrically arranged along the central axis of the V-groove (120). A light source (400) is provided at the lower entrance of the V-groove (120). The first light guide ring (110) includes a first reflective part (141), a second reflective part (142) and a third reflective part (143). The outer wall of the first reflective part (141) is uniformly provided with a plurality of first reflective grooves (144), the outer wall of the second reflective part (142) is uniformly provided with a plurality of second reflective grooves (145), and the outer wall of the third reflective part (143) is uniformly provided with a plurality of third reflective grooves (146).

2. The vehicle-mounted interface ambient light according to claim 1, characterized in that: The third reflective groove (146), the second reflective groove (145) and the first reflective groove (144) are all "V" shaped grooves.

3. The vehicle-mounted interface ambient light according to claim 2, characterized in that: The density of a number of third reflective grooves (146) is greater than the density of a number of second reflective grooves (145) is greater than the density of a number of first reflective grooves (144).

4. The vehicle-mounted interface ambient light according to claim 3, characterized in that: The depth of a plurality of third reflective grooves (146) is greater than the depth of a plurality of second reflective grooves (145) is greater than the depth of a plurality of first reflective grooves (144).

5. A vehicle-mounted interface ambient light according to any one of claims 1-4, characterized in that: The left light guide bracket (201) has a positioning ring (240) on the front side, and a second light guide ring (270) is provided on the inner side of the positioning ring (240). The second light guide ring (270) protrudes forward and the second light guide ring (270) and the positioning ring (240) are an integral structure.

6. The vehicle-mounted interface ambient light according to claim 5, characterized in that: The positioning ring (240) is provided with a third buckle (230) on the upper and lower sides respectively, a first positioning rib (280) is provided on the left side of the positioning ring (240), and a second positioning rib (290) is provided on the right side of the positioning ring (240).

7. A vehicle-mounted interface ambient light according to claim 6, characterized in that: It also includes a circuit board (500), on both sides of the front of the circuit board (500) are USB plugs (300), and a light source (400) is set on the circuit board (500) between the two USB plugs (300). The two USB plugs (300) pass through the second light guide ring (270) of the left light guide bracket (201) and the right light guide bracket (202) respectively.

8. A vehicle-mounted interface ambient light according to claim 7, characterized in that: The left light guide bracket (201) and the right light guide bracket (202) are respectively snapped onto the circuit board (500) by buckles.

9. A vehicle-mounted interface ambient light according to claim 8, characterized in that: The left light guide bracket (201) has a first buckle (210) on each of its rear sides. The circuit board (500) has a first limiting groove (510) corresponding to the first buckle (210). The rear end of the first buckle (210) passes downward through the first limiting groove (510) and has a limiting rib (260). The right light guide bracket (202) has a second buckle (220) on each of its rear sides. The circuit board (500) has a second limiting groove (520) corresponding to the second buckle (220). The rear end of the second buckle (220) passes downward through the second limiting groove (520) and has a limiting rib (260). The length of the first buckle (210) is greater than the length of the second buckle (220).