A multi-layer light effect tail lamp applied to the tail of a car

By improving the housing structure of automotive taillights and adopting a simplified design consisting of a mounting base, support frame, and cover plate, the problems of complex structure and inconvenient installation of traditional taillights have been solved, resulting in improved stability and light uniformity, and enhanced lighting aesthetics.

CN224381297UActive Publication Date: 2026-06-19SHANGHAI JINHELONG TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI JINHELONG TECHNOLOGY CO LTD
Filing Date
2025-09-01
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Traditional automotive taillights have complex housing structures, are difficult to mold, and have inconvenient light source mechanisms to install.

Method used

The housing structure consists of a mounting base, a support frame, and a cover plate. The light guide plate is pre-fixed to the PCB board, simplifying the housing structure and improving stability and sealing through the support frame.

Benefits of technology

The molding difficulty of the taillight housing has been reduced, the installation process of the light source mechanism has been simplified, the stability and uniformity of light distribution have been improved, and the three-dimensionality and visual effect of the light have been enhanced.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224381297U_ABST
    Figure CN224381297U_ABST
Patent Text Reader

Abstract

The utility model discloses a multilayer light effect tail light applied to the tail of car, including the casing, light source mechanism, the casing includes mounting seat, bracing frame, apron, set up bracing frame for supporting on the mounting seat, the light source mechanism includes fixed plate, arc light guide sheet and PCB board, the structure of tail light is improved in this scheme, and the bracing frame is fixed on the mounting seat, and the bracing frame abuts against the cavity wall at the installation cavity of the vehicle body when tail light is installed, which helps to simplify the structure of tail light casing. The fixed plate is in the groove cavity surrounded by the apron and the mounting seat, and the light guide sheet enters the mounting seat chamber from the slot, which also can simplify the structure of casing, and the light guide sheet, PCB board and the like can be connected with the fixed plate during assembly, and then butt joint with the mounting seat, the casing structure of tail light is simplified, the forming difficulty is reduced, and the installation of light source mechanism is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of lighting device technology, specifically to a multi-layer light effect taillight applied to the rear of a car. Background Technology

[0002] There are many shortcomings in the design of automotive taillights. For example, traditional automotive taillights generally include a light source mechanism and a housing. The light source mechanism is located in the housing cavity, and the housing is a one-piece molded groove structure. The housing has disadvantages such as complex structure and high molding difficulty, which need to be improved. Utility Model Content

[0003] To address at least one of the aforementioned technical deficiencies, this utility model provides the following technical solution:

[0004] This application discloses a multi-layer light effect taillight for use at the rear of a car, including a housing and a light source mechanism. The housing includes a mounting base, a support frame, and a cover plate. The mounting base is provided with a support frame for support. The light source mechanism includes a fixing plate, an arc-shaped light guide sheet, and a PCB board. The fixing plate is provided with the arc-shaped light guide sheet and the PCB board. A cavity is formed inside the mounting base. A slot communicating with the cavity is provided at the top of the mounting base, and a cover plate is provided at the top of the mounting base. The light guide sheet is located in the space enclosed by the cover plate and the top of the mounting base, and the light guide sheet extends into the cavity from the slot. The end of the light guide sheet corresponds to the LED on the PCB board. A light outlet is provided at the side wall of the cavity corresponding to the end slot of the cavity enclosed by the light guide sheet, and a mask for sealing is provided at the light outlet.

[0005] This design improves the taillight structure by adding a fixed support bracket on the mounting base. During installation, the bracket abuts against the wall of the mounting cavity on the vehicle body, simplifying the taillight housing structure. The fixing plate is located in the groove formed by the cover plate and the mounting base, and the light guide enters the mounting base cavity from the slot, further simplifying the housing structure. During assembly, the light guide, PCB board, etc., can be pre-connected to the fixing plate before docking with the mounting base. This simplifies the taillight housing structure, reduces molding difficulty, and facilitates the installation of the light source mechanism.

[0006] Furthermore, a support frame is provided at the bottom of the mounting base. The support frame includes a base plate and legs connected to the base plate. The legs are connected to the mounting base, and the base plate and the bottom surface of the mounting base are spaced apart. The support frame can better abut against the cavity wall of the vehicle body mounting cavity to improve stability. The spaced arrangement of the base plate and the mounting base can reduce the thickness of the mounting base or base plate, which helps to reduce weight.

[0007] Furthermore, the light guide sheet is located on the bottom surface of the fixing plate and its end is located at the mounting hole formed on the fixing plate. A PCB board is provided on the top surface of the fixing plate, and the lamp beads on the PCB board correspond to the end of the light guide sheet at the mounting hole.

[0008] Furthermore, several grooves are provided at intervals on both the front and back sides of the light guide sheet. The grooves extend along the length of the light guide sheet and are spaced apart along the width of the light guide sheet. The grooves promote uniform light distribution at the light guide sheet, achieving uniform light emission and making the taillight light softer and more comfortable.

[0009] Furthermore, the light guide sheet is provided with an aluminum plating layer on both the front and back sides. The curved light guide sheet combined with the aluminum plating layer helps to improve the three-dimensionality of the light and enhance the visual effect of the light.

[0010] Furthermore, it also includes a drive mechanism for stabilizing voltage and current, which is connected to the PCB board.

[0011] Furthermore, the cover plate is groove-shaped and its groove end face abuts against the top surface of the mounting base, and the fixing plate is located in the groove cavity of the cover plate, which helps to improve the sealing performance.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model improves the structure of the taillight by using a mounting base, a support frame, and a cover plate to form a housing. The structure of the housing is simplified, reducing the difficulty of molding, and facilitating the installation of the light source mechanism. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the taillight in Embodiment 1;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the taillight in Example 1;

[0017] Figure 3 This is a schematic diagram of the light guide sheet structure;

[0018] The attached figures are labeled as follows:

[0019] 1. Housing; 2. Light source mechanism; 3. Mask; 4. Drive mechanism; 10. Mounting base; 11. Support frame; 12. Cover plate; 20. Fixing plate; 21. Light guide plate; 22. PCB board; 100. Chamber; 101. Slot; 110. Support leg; 111. Base plate; 210. Groove. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figure 1 ,picture, Figure 3 As shown, in this example, a multi-layered light effect taillight applied to the rear of a car includes a housing 1 and a light source mechanism 2. The housing 1 includes a mounting base 10, a support frame 11, and a cover plate 12. The support frame 11 for support is fixed on the mounting base 10. The support frame 11 is installed at the bottom of the mounting base 10. The configuration of the mounting base can be selected according to requirements. The support frame 11 may include a base plate 111 and legs 110 connected to the base plate. The legs may be longitudinally fixed at the four corners of the base plate or integrally formed. The top of the legs is connected to the mounting base. A gap is maintained between the base plate 111 and the bottom surface of the mounting base 10. This gap distance can be selected according to requirements, such as adjusting the length of the legs according to the depth of the mounting cavity of the taillight on the vehicle body, thereby changing the distance between the base plate and the bottom surface of the mounting base. During installation, the base plate of the support frame abuts against the cavity wall of the vehicle body mounting cavity to improve stability.

[0023] In this example, the light source mechanism 2 includes a fixed plate 20, an arc-shaped light guide 21, and a PCB board 22. The arc-shaped light guide 21 and the PCB board 22 are mounted on the fixed plate 20. Figure 2 In the shown configuration, light guide sheets 21 are installed on the bottom surface of the fixing plate 20. Multiple light guide sheets are arranged at intervals, preferably three at intervals. A PCB board 22 is installed on the top surface of the fixing plate 20, with the LEDs on the PCB board corresponding to the ends of the light guide sheets 21. For ease of connection, multiple mounting holes are formed on the fixing plate 20 in this example. The ends of the light guide sheets are fixed in the mounting holes by fitting or heat sealing, and the LEDs on the PCB board correspond to the ends of the light guide sheets at the mounting holes.

[0024] To improve light efficiency, a number of grooves 210 can be formed at intervals on both the front and back sides of the light guide 21. These grooves extend along the length of the light guide and are spaced apart along its width. "Extending along the length of the light guide" means either parallel to the length of the light guide or at an angle. These grooves promote uniform light distribution at the light guide, achieving uniform light emission and making the taillight light softer and more comfortable. A mirror-finish aluminum coating can also be formed on both the front and back sides of the light guide. The curved light guide combined with the aluminum coating helps to enhance the three-dimensionality of the light and improve its visual appeal.

[0025] It may also include a drive mechanism 4 for stabilizing voltage and current. The drive mechanism 4 is mounted on the fixed plate 20 and connected to the PCB board 22. The drive mechanism can be selected from the market and will not be described in detail here.

[0026] In this example, regarding the docking structure between the light source mechanism and the mounting base, the mounting base 10 has a cavity 100 formed inside, a slot 101 communicating with the cavity is formed at the top of the mounting base, and a cover plate 12 is installed at the top of the mounting base. The light guide 21 is located in the space enclosed by the cover plate 12 and the top of the mounting base 10, and the light guide 21 extends from the slot into the cavity 100. A light outlet is formed at the side wall of the cavity corresponding to the end slot of the cavity enclosed by the light guide 21, and a mask 3 for sealing is installed at the light outlet.

[0027] During assembly, components such as light guide sheets and PCB boards are pre-installed on the fixing plate. The fixing plate is then fixed to the top of the mounting base, and finally, the cover plate is installed. Preferably, the cover plate 12 is groove-shaped with its groove end face abutting against the top surface of the mounting base, and the fixing plate 20 is located in the groove cavity of the cover plate, which helps to improve the sealing performance.

[0028] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A multi-layered light effect taillight applied to the rear of a car, comprising a housing (1) and a light source mechanism (2), characterized in that, The housing includes a mounting base (10), a support frame (11), and a cover plate (12). The mounting base is provided with a support frame (11) for support. The light source mechanism (2) includes a fixing plate (20), an arc-shaped light guide (21), and a PCB board (22). The fixing plate (20) is provided with an arc-shaped light guide (21) and a PCB board (22). A cavity (100) is formed inside the mounting base (10). A slot (101) communicating with the cavity is provided at the top of the mounting base, and a cover plate (12) is provided at the top of the mounting base. The light guide (21) is located in the space enclosed by the cover plate and the top of the mounting base, and the light guide (21) extends into the cavity (100) from the slot. The end of the light guide corresponds to the lamp bead on the PCB board (22). A light outlet is provided at the side wall of the cavity corresponding to the end slot of the cavity enclosed by the light guide (21), and a mask (3) for sealing is provided at the light outlet.

2. The multi-layered light effect taillight applied to the rear of a car as described in claim 1, characterized in that: A support frame (11) is provided at the bottom of the mounting base (10). The support frame includes a base plate (111) and a support leg (110) connected to the base plate. The support leg is connected to the mounting base (10) and the base plate (111) is spaced apart from the bottom surface of the mounting base.

3. The multi-layered light effect taillight applied to the rear of a car as described in claim 1, characterized in that: The light guide (21) is located on the bottom surface of the fixing plate (20) and its end is located at the mounting hole formed on the fixing plate. A PCB board (22) is provided on the top surface of the fixing plate and the lamp beads on the PCB board correspond to the end of the light guide at the mounting hole.

4. A multi-layered light effect taillight applied to the rear of a car as described in claim 1, characterized in that: The light guide sheet (21) has several grooves (210) spaced apart on both the front and back sides. The grooves extend along the length of the light guide sheet and are spaced apart along the width of the light guide sheet.

5. A multi-layered light effect taillight applied to the rear of a car as described in claim 4, characterized in that: The light guide sheet (21) is provided with an aluminum plating layer on both the front and back sides.

6. A multi-layered light effect taillight applied to the rear of a car as described in claim 1, characterized in that: It also includes a drive mechanism (4) for stabilizing voltage and current, which is mounted on a fixed plate (20) and connected to the PCB board.

7. A multi-layered light effect taillight applied to the rear of a car as described in claim 1, characterized in that: The cover plate (12) is in the shape of a groove and its end face abuts against the top surface of the mounting base. The fixing plate (20) is located in the groove cavity of the cover plate.